/home/llmeval/.local/share/uv/tools/cubbi/lib/python3.12/site-packages/click/core.py:1213: UserWarning: The parameter -m is used more than once. Remove its duplicate as parameters should be unique. parser = self.make_parser(ctx) /home/llmeval/.local/share/uv/tools/cubbi/lib/python3.12/site-packages/click/core.py:1206: UserWarning: The parameter -m is used more than once. Remove its duplicate as parameters should be unique. self.parse_args(ctx, args) Using UID: 1000, GID: 1000 Forwarding environment variable OPENROUTER_API_KEY to container Mounting local directory /home/llmeval/llmeval/runs/run_20260111_150040/task9_cpp_footguns/openrouter-google-gemini-2.5-flash-preview-09-2025/workspace to /app No project_name provided - skipping configuration directory setup. Session created successfully! Session ID: b7a54a37 Image: opencode Executing command and waiting for completion... Container will exit after command completes. Command logs: Initializing opencode v1.0.0 Setting up user 'cubbi' with UID: 1000, GID: 1000 Setting up standard directories Created directory: /app Created directory: /cubbi-config Created directory: /cubbi-config/home Creating /home/cubbi as symlink to /cubbi-config/home Created directory: /cubbi-config/home/.local Copied /root/.local/bin to user directory Running opencode-specific initialization Added litellm custom provider with 151 models to OpenCode configuration Added openrouter standard provider with 349 models to OpenCode configuration Set default model to openrouter/google/gemini-2.5-flash-preview-09-2025 Updated OpenCode configuration at /home/cubbi/.config/opencode/config.json with 2 providers No MCP servers to integrate --- Executing initial command --- Executing user command: if [ -f install.sh ]; then bash install.sh; fi; echo "--- TASK BEGIN ---"; cat task.md; echo "--- TASK END ---"; cd input && opencode run --print-logs < ../task.md Executing as cubbi: sh -c if [ -f install.sh ]; then bash install.sh; fi; echo "--- TASK BEGIN ---"; cat task.md; echo "--- TASK END ---"; cd input && opencode run --print-logs < ../task.md Installing Docker... Docker installed C++ compilation will use gcc:13 Docker image to avoid host path conflicts --- TASK BEGIN --- # C++ Bug Hunt: Fix Subtle Errors You'll find several C++ files in the current directory. Each file contains realistic code that does something useful, but has ONE subtle bug. ## Your Task Fix the bug in each file so that: 1. The code compiles without warnings (`-Wall -Wextra -Werror`) 2. The code passes sanitizer checks (ASan/UBSan) 3. The code produces the correct expected output ## Files - `virtual_destructor.cpp` - Plugin system with memory management - `reference_to_temporary.cpp` - Configuration system - `iterator_invalidation.cpp` - Event queue processor - `unsigned_underflow.cpp` - Ring buffer implementation - `dangling_cstr.cpp` - Log formatting system - `init_order.cpp` - Coordinate system with units - `off_by_one.cpp` - Matrix border detection - `int_overflow.cpp` - Bulk price calculator Each file is independent. Fix bugs **IN PLACE** (modify the files in the same directory). PS: You are currently working in an automated system and cannot ask any question or have back and forth with an user. --- TASK END --- INFO 2026-01-11T16:02:53 +847ms service=default version=1.0.212 args=["run","--print-logs"] opencode INFO 2026-01-11T16:02:53 +2ms service=default directory=/app/input creating instance INFO 2026-01-11T16:02:53 +1ms service=project directory=/app/input fromDirectory INFO 2026-01-11T16:02:53 +11ms service=storage index=0 running migration ERROR 2026-01-11T16:02:53 +9ms service=storage index=0 failed to run migration INFO 2026-01-11T16:02:53 +3ms service=storage index=1 running migration INFO 2026-01-11T16:02:53 +3ms service=default directory=/app/input bootstrapping INFO 2026-01-11T16:02:53 +4ms service=config path=/home/cubbi/.config/opencode/config.json loading INFO 2026-01-11T16:02:53 +39ms service=config path=/home/cubbi/.config/opencode/opencode.json loading INFO 2026-01-11T16:02:53 +1ms service=config path=/home/cubbi/.config/opencode/opencode.jsonc loading INFO 2026-01-11T16:02:53 +11ms service=bun cmd=["/opt/node/lib/node_modules/opencode-ai/node_modules/opencode-linux-x64/bin/opencode","add","@opencode-ai/plugin@1.0.212","--exact"] cwd=/home/cubbi/.config/opencode running INFO 2026-01-11T16:02:53 +441ms service=bun code=0 stdout=bun add v1.3.5 (1e86cebd) installed @opencode-ai/plugin@1.0.212 3 packages installed [420.00ms] stderr=Resolving dependencies Resolved, downloaded and extracted [12] Saved lockfile done INFO 2026-01-11T16:02:53 +0ms service=bun cmd=["/opt/node/lib/node_modules/opencode-ai/node_modules/opencode-linux-x64/bin/opencode","install"] cwd=/home/cubbi/.config/opencode running INFO 2026-01-11T16:02:53 +14ms service=bun code=0 stdout=bun install v1.3.5 (1e86cebd) Checked 3 installs across 4 packages (no changes) [4.00ms] stderr= done INFO 2026-01-11T16:02:53 +8ms service=plugin path=opencode-copilot-auth@0.0.9 loading plugin INFO 2026-01-11T16:02:53 +5ms service=bun pkg=opencode-copilot-auth version=0.0.9 installing package using Bun's default registry resolution INFO 2026-01-11T16:02:53 +0ms service=bun cmd=["/opt/node/lib/node_modules/opencode-ai/node_modules/opencode-linux-x64/bin/opencode","add","--force","--exact","--cwd","/home/cubbi/.cache/opencode","opencode-copilot-auth@0.0.9"] cwd=/home/cubbi/.cache/opencode running INFO 2026-01-11T16:02:53 +207ms service=bun code=0 stdout=bun add v1.3.5 (1e86cebd) installed opencode-copilot-auth@0.0.9 1 package installed [200.00ms] stderr=Resolving dependencies Resolved, downloaded and extracted [4] Saved lockfile done INFO 2026-01-11T16:02:53 +5ms service=plugin path=opencode-anthropic-auth@0.0.5 loading plugin INFO 2026-01-11T16:02:53 +2ms service=bun pkg=opencode-anthropic-auth version=0.0.5 installing package using Bun's default registry resolution INFO 2026-01-11T16:02:53 +0ms service=bun cmd=["/opt/node/lib/node_modules/opencode-ai/node_modules/opencode-linux-x64/bin/opencode","add","--force","--exact","--cwd","/home/cubbi/.cache/opencode","opencode-anthropic-auth@0.0.5"] cwd=/home/cubbi/.cache/opencode running INFO 2026-01-11T16:02:54 +735ms service=bun code=0 stdout=bun add v1.3.5 (1e86cebd) + opencode-copilot-auth@0.0.9 installed opencode-anthropic-auth@0.0.5 14 packages installed [723.00ms] stderr=Resolving dependencies Resolved, downloaded and extracted [50] Saved lockfile done INFO 2026-01-11T16:02:54 +54ms service=bus type=* subscribing INFO 2026-01-11T16:02:54 +0ms service=bus type=session.updated subscribing INFO 2026-01-11T16:02:54 +0ms service=bus type=message.updated subscribing INFO 2026-01-11T16:02:54 +0ms service=bus type=message.part.updated subscribing INFO 2026-01-11T16:02:54 +0ms service=bus type=session.updated subscribing INFO 2026-01-11T16:02:54 +0ms service=bus type=message.updated subscribing INFO 2026-01-11T16:02:54 +1ms service=bus type=message.part.updated subscribing INFO 2026-01-11T16:02:54 +0ms service=bus type=session.diff subscribing INFO 2026-01-11T16:02:54 +0ms service=format init INFO 2026-01-11T16:02:54 +0ms service=bus type=file.edited subscribing INFO 2026-01-11T16:02:54 +0ms service=lsp serverIds=deno, typescript, vue, eslint, oxlint, biome, gopls, ruby-lsp, pyright, elixir-ls, zls, csharp, fsharp, sourcekit-lsp, rust, clangd, svelte, astro, jdtls, yaml-ls, lua-ls, php intelephense, dart, ocaml-lsp, bash, terraform, texlab, dockerfile, gleam, clojure-lsp, nixd, tinymist, haskell-language-server enabled LSP servers INFO 2026-01-11T16:02:54 +6ms service=bus type=command.executed subscribing INFO 2026-01-11T16:02:54 +116ms service=server method=POST path=/session request INFO 2026-01-11T16:02:54 +1ms service=server status=started method=POST path=/session request INFO 2026-01-11T16:02:54 +7ms service=session id=ses_452342d67ffe4rYhsNKyeydq4H version=1.0.212 projectID=global directory=/app/input title=New session - 2026-01-11T16:02:54.745Z time={"created":1768147374745,"updated":1768147374745} created INFO 2026-01-11T16:02:54 +4ms service=bus type=session.created publishing INFO 2026-01-11T16:02:54 +1ms service=bus type=session.updated publishing INFO 2026-01-11T16:02:54 +2ms service=server status=completed duration=14 method=POST path=/session request INFO 2026-01-11T16:02:54 +1ms service=server method=GET path=/config request INFO 2026-01-11T16:02:54 +0ms service=server status=started method=GET path=/config request INFO 2026-01-11T16:02:54 +2ms service=server status=completed duration=2 method=GET path=/config request INFO 2026-01-11T16:02:54 +12ms service=server method=GET path=/event request INFO 2026-01-11T16:02:54 +0ms service=server status=started method=GET path=/event request INFO 2026-01-11T16:02:54 +1ms service=server event connected INFO 2026-01-11T16:02:54 +3ms service=bus type=* subscribing INFO 2026-01-11T16:02:54 +2ms service=server status=completed duration=6 method=GET path=/event request INFO 2026-01-11T16:02:54 +7ms service=server method=POST path=/session/ses_452342d67ffe4rYhsNKyeydq4H/message request INFO 2026-01-11T16:02:54 +0ms service=server status=started method=POST path=/session/ses_452342d67ffe4rYhsNKyeydq4H/message request INFO 2026-01-11T16:02:54 +9ms service=server status=completed duration=9 method=POST path=/session/ses_452342d67ffe4rYhsNKyeydq4H/message request INFO 2026-01-11T16:02:54 +12ms service=bus type=message.updated publishing INFO 2026-01-11T16:02:54 +4ms service=provider status=started state INFO 2026-01-11T16:02:54 +6ms service=models.dev file={} refreshing INFO 2026-01-11T16:02:54 +41ms service=provider init INFO 2026-01-11T16:02:54 +5ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:02:54 +3ms service=bus type=session.updated publishing INFO 2026-01-11T16:02:54 +2ms service=bus type=session.status publishing INFO 2026-01-11T16:02:54 +0ms service=session.prompt step=0 sessionID=ses_452342d67ffe4rYhsNKyeydq4H loop INFO 2026-01-11T16:02:54 +30ms service=provider providerID=openrouter found INFO 2026-01-11T16:02:54 +0ms service=provider providerID=opencode found INFO 2026-01-11T16:02:54 +0ms service=provider providerID=litellm found INFO 2026-01-11T16:02:54 +0ms service=provider status=completed duration=87 state INFO 2026-01-11T16:02:54 +6ms service=llm providerID=openrouter modelID=anthropic/claude-haiku-4.5 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=true agent=title stream INFO 2026-01-11T16:02:54 +1ms service=provider status=started providerID=openrouter getSDK INFO 2026-01-11T16:02:54 +0ms service=provider providerID=openrouter pkg=@ai-sdk/openai-compatible using bundled provider INFO 2026-01-11T16:02:54 +1ms service=provider status=completed duration=1 providerID=openrouter getSDK INFO 2026-01-11T16:02:54 +2ms service=bus type=message.updated publishing INFO 2026-01-11T16:02:54 +2ms service=session.prompt status=started resolveTools INFO 2026-01-11T16:02:54 +3ms service=llm providerID=openrouter modelID=anthropic/claude-haiku-4.5 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=true agent=title params={"options":{"reasoningEffort":"minimal"}} params INFO 2026-01-11T16:02:54 +14ms service=tool.registry status=started invalid INFO 2026-01-11T16:02:54 +0ms service=tool.registry status=started bash INFO 2026-01-11T16:02:54 +1ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-01-11T16:02:54 +0ms service=tool.registry status=started read INFO 2026-01-11T16:02:54 +0ms service=tool.registry status=started glob INFO 2026-01-11T16:02:54 +0ms service=tool.registry status=started grep INFO 2026-01-11T16:02:54 +0ms service=tool.registry status=started edit INFO 2026-01-11T16:02:54 +0ms service=tool.registry status=started write INFO 2026-01-11T16:02:54 +0ms service=tool.registry status=started task INFO 2026-01-11T16:02:54 +1ms service=tool.registry status=started webfetch INFO 2026-01-11T16:02:54 +0ms service=tool.registry status=started todowrite INFO 2026-01-11T16:02:54 +0ms service=tool.registry status=started todoread INFO 2026-01-11T16:02:54 +0ms service=tool.registry status=started skill INFO 2026-01-11T16:02:54 +3ms service=tool.registry status=completed duration=5 invalid INFO 2026-01-11T16:02:54 +0ms service=tool.registry status=completed duration=4 read INFO 2026-01-11T16:02:54 +0ms service=tool.registry status=completed duration=4 glob INFO 2026-01-11T16:02:54 +0ms service=tool.registry status=completed duration=4 grep INFO 2026-01-11T16:02:54 +0ms service=tool.registry status=completed duration=4 edit INFO 2026-01-11T16:02:54 +0ms service=tool.registry status=completed duration=4 write INFO 2026-01-11T16:02:54 +1ms service=tool.registry status=completed duration=4 webfetch INFO 2026-01-11T16:02:54 +0ms service=tool.registry status=completed duration=4 todowrite INFO 2026-01-11T16:02:54 +0ms service=tool.registry status=completed duration=4 todoread INFO 2026-01-11T16:02:54 +0ms service=tool.registry status=completed duration=6 bash INFO 2026-01-11T16:02:54 +0ms service=tool.registry status=completed duration=5 task INFO 2026-01-11T16:02:54 +16ms service=tool.registry status=completed duration=20 skill INFO 2026-01-11T16:02:54 +13ms service=session.prompt status=completed duration=52 resolveTools INFO 2026-01-11T16:02:54 +8ms service=bus type=message.updated publishing INFO 2026-01-11T16:02:54 +1ms service=llm providerID=openrouter modelID=anthropic/claude-haiku-4.5 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=true agent=title stream INFO 2026-01-11T16:02:54 +1ms service=llm providerID=openrouter modelID=anthropic/claude-haiku-4.5 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=true agent=title params={"options":{"reasoningEffort":"minimal"}} params INFO 2026-01-11T16:02:54 +5ms service=bus type=session.updated publishing INFO 2026-01-11T16:02:54 +3ms service=bus type=session.diff publishing INFO 2026-01-11T16:02:54 +4ms service=session.processor process INFO 2026-01-11T16:02:54 +0ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build stream INFO 2026-01-11T16:02:54 +0ms service=provider status=started providerID=openrouter getSDK INFO 2026-01-11T16:02:54 +0ms service=provider status=completed duration=0 providerID=openrouter getSDK INFO 2026-01-11T16:02:54 +4ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build params={"temperature":1,"topP":0.95,"topK":64,"options":{}} params INFO 2026-01-11T16:02:54 +8ms service=bus type=session.status publishing ERROR 2026-01-11T16:02:55 +765ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:02:55 +0ms service=default e=NotFoundError rejection INFO 2026-01-11T16:02:55 +158ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:02:55 +3ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:02:55 +50ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:02:56 +73ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:02:56 +67ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:02:56 +159ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:02:56 +80ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:02:56 +142ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:02:56 +5ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:02:56 +29ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:02:56 +9ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:02:56 +15ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:02:56 +1ms service=bus type=message.updated publishing I will first use the `glob` tool to list all the C++ files in the current directory and then read the content of each file to understand the context and identify the single bug in each one. I'll start by listing the files.I need to fix a single subtle bug in each of the provided C++ files. I'll start by using `glob` to confirm the file names and then use `read` to examine the content of the first file, `virtual_destructor.cpp`. INFO 2026-01-11T16:02:56 +15ms service=bus type=message.updated publishing INFO 2026-01-11T16:02:56 +3ms service=bus type=session.status publishing INFO 2026-01-11T16:02:56 +1ms service=session.prompt step=1 sessionID=ses_452342d67ffe4rYhsNKyeydq4H loop INFO 2026-01-11T16:02:56 +10ms service=bus type=message.updated publishing INFO 2026-01-11T16:02:56 +1ms service=llm providerID=openrouter modelID=anthropic/claude-haiku-4.5 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=true agent=title stream INFO 2026-01-11T16:02:56 +0ms service=llm providerID=openrouter modelID=anthropic/claude-haiku-4.5 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=true agent=title params={"options":{"reasoningEffort":"minimal"}} params INFO 2026-01-11T16:02:56 +6ms service=bus type=session.updated publishing INFO 2026-01-11T16:02:56 +1ms service=bus type=session.diff publishing |  Glob app/input INFO 2026-01-11T16:02:56 +17ms service=bus type=message.updated publishing INFO 2026-01-11T16:02:56 +1ms service=session.prompt status=started resolveTools INFO 2026-01-11T16:02:56 +0ms service=tool.registry status=started invalid INFO 2026-01-11T16:02:56 +1ms service=tool.registry status=started bash INFO 2026-01-11T16:02:56 +0ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-01-11T16:02:56 +1ms service=tool.registry status=started read INFO 2026-01-11T16:02:56 +0ms service=tool.registry status=started glob INFO 2026-01-11T16:02:56 +0ms service=tool.registry status=started grep INFO 2026-01-11T16:02:56 +0ms service=tool.registry status=started edit INFO 2026-01-11T16:02:56 +0ms service=tool.registry status=started write INFO 2026-01-11T16:02:56 +0ms service=tool.registry status=started task INFO 2026-01-11T16:02:56 +1ms service=tool.registry status=started webfetch INFO 2026-01-11T16:02:56 +0ms service=tool.registry status=started todowrite INFO 2026-01-11T16:02:56 +0ms service=tool.registry status=started todoread INFO 2026-01-11T16:02:56 +0ms service=tool.registry status=started skill INFO 2026-01-11T16:02:56 +0ms service=tool.registry status=completed duration=3 invalid INFO 2026-01-11T16:02:56 +0ms service=tool.registry status=completed duration=1 read INFO 2026-01-11T16:02:56 +0ms service=tool.registry status=completed duration=1 glob INFO 2026-01-11T16:02:56 +0ms service=tool.registry status=completed duration=1 grep INFO 2026-01-11T16:02:56 +1ms service=tool.registry status=completed duration=2 edit INFO 2026-01-11T16:02:56 +0ms service=tool.registry status=completed duration=2 write INFO 2026-01-11T16:02:56 +0ms service=tool.registry status=completed duration=1 webfetch INFO 2026-01-11T16:02:56 +0ms service=tool.registry status=completed duration=1 todowrite INFO 2026-01-11T16:02:56 +0ms service=tool.registry status=completed duration=1 todoread INFO 2026-01-11T16:02:56 +1ms service=tool.registry status=completed duration=4 bash INFO 2026-01-11T16:02:56 +1ms service=tool.registry status=completed duration=3 skill INFO 2026-01-11T16:02:56 +0ms service=tool.registry status=completed duration=4 task INFO 2026-01-11T16:02:56 +7ms service=session.prompt status=completed duration=12 resolveTools INFO 2026-01-11T16:02:56 +28ms service=session.processor process INFO 2026-01-11T16:02:56 +0ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build stream INFO 2026-01-11T16:02:56 +1ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build params={"temperature":1,"topP":0.95,"topK":64,"options":{}} params INFO 2026-01-11T16:02:56 +6ms service=bus type=session.status publishing ERROR 2026-01-11T16:02:56 +267ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:02:56 +0ms service=default e=NotFoundError rejection INFO 2026-01-11T16:02:57 +370ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:02:57 +2ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:02:57 +23ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:02:57 +75ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:02:57 +70ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:02:57 +86ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:02:57 +109ms service=bus type=message.part.updated publishing ERROR 2026-01-11T16:02:58 +640ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:02:58 +0ms service=default e=NotFoundError rejection INFO 2026-01-11T16:02:58 +85ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:02:58 +2ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:02:58 +4ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:02:58 +13ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:02:58 +2ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:02:58 +1ms service=bus type=message.updated publishing The files are: 1. `virtual_destructor.cpp` 2. `off_by_one.cpp` 3. `reference_to_temporary.cpp` 4. `unsigned_underflow.cpp` 5. `iterator_invalidation.cpp` 6. `int_overflow.cpp` 7. `init_order.cpp` 8. `dangling_cstr.cpp` I will tackle them one by one, starting with `virtual_destructor.cpp`. I'll use a `todoread` tool to create a todo list to track the progress. INFO 2026-01-11T16:02:58 +17ms service=bus type=message.updated publishing INFO 2026-01-11T16:02:58 +1ms service=bus type=session.status publishing INFO 2026-01-11T16:02:58 +0ms service=session.prompt step=2 sessionID=ses_452342d67ffe4rYhsNKyeydq4H loop INFO 2026-01-11T16:02:58 +8ms service=bus type=message.updated publishing INFO 2026-01-11T16:02:58 +1ms service=llm providerID=openrouter modelID=anthropic/claude-haiku-4.5 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=true agent=title stream INFO 2026-01-11T16:02:58 +0ms service=llm providerID=openrouter modelID=anthropic/claude-haiku-4.5 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=true agent=title params={"options":{"reasoningEffort":"minimal"}} params INFO 2026-01-11T16:02:58 +3ms service=bus type=session.updated publishing INFO 2026-01-11T16:02:58 +4ms service=bus type=session.diff publishing INFO 2026-01-11T16:02:58 +13ms service=bus type=message.updated publishing INFO 2026-01-11T16:02:58 +1ms service=session.prompt status=started resolveTools INFO 2026-01-11T16:02:58 +0ms service=tool.registry status=started invalid INFO 2026-01-11T16:02:58 +1ms service=tool.registry status=started bash INFO 2026-01-11T16:02:58 +0ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-01-11T16:02:58 +1ms service=tool.registry status=started read INFO 2026-01-11T16:02:58 +0ms service=tool.registry status=started glob INFO 2026-01-11T16:02:58 +0ms service=tool.registry status=started grep INFO 2026-01-11T16:02:58 +0ms service=tool.registry status=started edit INFO 2026-01-11T16:02:58 +0ms service=tool.registry status=started write INFO 2026-01-11T16:02:58 +0ms service=tool.registry status=started task INFO 2026-01-11T16:02:58 +0ms service=tool.registry status=started webfetch INFO 2026-01-11T16:02:58 +1ms service=tool.registry status=started todowrite INFO 2026-01-11T16:02:58 +0ms service=tool.registry status=started todoread INFO 2026-01-11T16:02:58 +0ms service=tool.registry status=started skill INFO 2026-01-11T16:02:58 +0ms service=tool.registry status=completed duration=3 invalid INFO 2026-01-11T16:02:58 +0ms service=tool.registry status=completed duration=1 read INFO 2026-01-11T16:02:58 +0ms service=tool.registry status=completed duration=1 glob INFO 2026-01-11T16:02:58 +0ms service=tool.registry status=completed duration=1 grep INFO 2026-01-11T16:02:58 +0ms service=tool.registry status=completed duration=1 edit INFO 2026-01-11T16:02:58 +1ms service=tool.registry status=completed duration=2 write INFO 2026-01-11T16:02:58 +0ms service=tool.registry status=completed duration=2 webfetch INFO 2026-01-11T16:02:58 +0ms service=tool.registry status=completed duration=1 todowrite INFO 2026-01-11T16:02:58 +0ms service=tool.registry status=completed duration=1 todoread INFO 2026-01-11T16:02:58 +0ms service=tool.registry status=completed duration=3 bash INFO 2026-01-11T16:02:58 +0ms service=tool.registry status=completed duration=1 skill INFO 2026-01-11T16:02:58 +0ms service=tool.registry status=completed duration=2 task INFO 2026-01-11T16:02:58 +2ms service=session.prompt status=completed duration=6 resolveTools INFO 2026-01-11T16:02:58 +19ms service=session.processor process INFO 2026-01-11T16:02:58 +0ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build stream INFO 2026-01-11T16:02:58 +1ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build params={"temperature":1,"topP":0.95,"topK":64,"options":{}} params INFO 2026-01-11T16:02:58 +6ms service=bus type=session.status publishing ERROR 2026-01-11T16:02:59 +902ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:02:59 +0ms service=default e=NotFoundError rejection INFO 2026-01-11T16:03:00 +1556ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:00 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:00 +4ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:00 +1ms service=bus type=todo.updated publishing INFO 2026-01-11T16:03:00 +15ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:00 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:00 +5ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:00 +8ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:00 +1ms service=bus type=session.status publishing INFO 2026-01-11T16:03:00 +0ms service=session.prompt step=3 sessionID=ses_452342d67ffe4rYhsNKyeydq4H loop |  Todo 8 todos INFO 2026-01-11T16:03:01 +40ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:01 +3ms service=llm providerID=openrouter modelID=anthropic/claude-haiku-4.5 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=true agent=title stream INFO 2026-01-11T16:03:01 +0ms service=llm providerID=openrouter modelID=anthropic/claude-haiku-4.5 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=true agent=title params={"options":{"reasoningEffort":"minimal"}} params INFO 2026-01-11T16:03:01 +5ms service=bus type=session.updated publishing INFO 2026-01-11T16:03:01 +1ms service=bus type=session.diff publishing INFO 2026-01-11T16:03:01 +13ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:01 +0ms service=session.prompt status=started resolveTools INFO 2026-01-11T16:03:01 +3ms service=tool.registry status=started invalid INFO 2026-01-11T16:03:01 +0ms service=tool.registry status=started bash INFO 2026-01-11T16:03:01 +0ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-01-11T16:03:01 +1ms service=tool.registry status=started read INFO 2026-01-11T16:03:01 +0ms service=tool.registry status=started glob INFO 2026-01-11T16:03:01 +0ms service=tool.registry status=started grep INFO 2026-01-11T16:03:01 +0ms service=tool.registry status=started edit INFO 2026-01-11T16:03:01 +0ms service=tool.registry status=started write INFO 2026-01-11T16:03:01 +0ms service=tool.registry status=started task INFO 2026-01-11T16:03:01 +0ms service=tool.registry status=started webfetch INFO 2026-01-11T16:03:01 +0ms service=tool.registry status=started todowrite INFO 2026-01-11T16:03:01 +0ms service=tool.registry status=started todoread INFO 2026-01-11T16:03:01 +0ms service=tool.registry status=started skill INFO 2026-01-11T16:03:01 +1ms service=tool.registry status=completed duration=2 invalid INFO 2026-01-11T16:03:01 +0ms service=tool.registry status=completed duration=1 read INFO 2026-01-11T16:03:01 +0ms service=tool.registry status=completed duration=1 glob INFO 2026-01-11T16:03:01 +0ms service=tool.registry status=completed duration=1 grep INFO 2026-01-11T16:03:01 +0ms service=tool.registry status=completed duration=1 edit INFO 2026-01-11T16:03:01 +0ms service=tool.registry status=completed duration=1 write INFO 2026-01-11T16:03:01 +0ms service=tool.registry status=completed duration=1 webfetch INFO 2026-01-11T16:03:01 +0ms service=tool.registry status=completed duration=1 todowrite INFO 2026-01-11T16:03:01 +0ms service=tool.registry status=completed duration=1 todoread INFO 2026-01-11T16:03:01 +0ms service=tool.registry status=completed duration=2 bash INFO 2026-01-11T16:03:01 +1ms service=tool.registry status=completed duration=2 skill INFO 2026-01-11T16:03:01 +0ms service=tool.registry status=completed duration=2 task INFO 2026-01-11T16:03:01 +3ms service=session.prompt status=completed duration=9 resolveTools INFO 2026-01-11T16:03:01 +23ms service=session.processor process INFO 2026-01-11T16:03:01 +1ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build stream INFO 2026-01-11T16:03:01 +1ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build params={"temperature":1,"topP":0.95,"topK":64,"options":{}} params INFO 2026-01-11T16:03:01 +5ms service=bus type=session.status publishing INFO 2026-01-11T16:03:01 +664ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:01 +2ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:01 +57ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:01 +3ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:01 +80ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:01 +2ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:01 +31ms service=lsp file=/app/input/virtual_destructor.cpp touching file INFO 2026-01-11T16:03:01 +3ms service=file.time sessionID=ses_452342d67ffe4rYhsNKyeydq4H file=/app/input/virtual_destructor.cpp read INFO 2026-01-11T16:03:01 +3ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:01 +3ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:01 +4ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:01 +3ms service=bus type=message.updated publishing I've created the todo list. Now I'll read the content of `virtual_destructor.cpp`. |  Read app/input/virtual_destructor.cpp INFO 2026-01-11T16:03:01 +22ms service=lsp.server downloading clangd from GitHub releases INFO 2026-01-11T16:03:01 +3ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:01 +0ms service=bus type=session.status publishing INFO 2026-01-11T16:03:01 +1ms service=session.prompt step=4 sessionID=ses_452342d67ffe4rYhsNKyeydq4H loop ERROR 2026-01-11T16:03:01 +31ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:03:01 +0ms service=default e=NotFoundError rejection INFO 2026-01-11T16:03:02 +17ms service=session.summary title=Fixing C++ subtle bugs title INFO 2026-01-11T16:03:02 +1ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:02 +13ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:02 +2ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:02 +0ms service=session.prompt status=started resolveTools INFO 2026-01-11T16:03:02 +0ms service=tool.registry status=started invalid INFO 2026-01-11T16:03:02 +1ms service=tool.registry status=started bash INFO 2026-01-11T16:03:02 +0ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-01-11T16:03:02 +0ms service=tool.registry status=started read INFO 2026-01-11T16:03:02 +0ms service=tool.registry status=started glob INFO 2026-01-11T16:03:02 +0ms service=tool.registry status=started grep INFO 2026-01-11T16:03:02 +0ms service=tool.registry status=started edit INFO 2026-01-11T16:03:02 +0ms service=tool.registry status=started write INFO 2026-01-11T16:03:02 +0ms service=tool.registry status=started task INFO 2026-01-11T16:03:02 +0ms service=tool.registry status=started webfetch INFO 2026-01-11T16:03:02 +0ms service=tool.registry status=started todowrite INFO 2026-01-11T16:03:02 +0ms service=tool.registry status=started todoread INFO 2026-01-11T16:03:02 +0ms service=tool.registry status=started skill INFO 2026-01-11T16:03:02 +0ms service=tool.registry status=completed duration=1 invalid INFO 2026-01-11T16:03:02 +0ms service=tool.registry status=completed duration=0 read INFO 2026-01-11T16:03:02 +0ms service=tool.registry status=completed duration=0 glob INFO 2026-01-11T16:03:02 +0ms service=tool.registry status=completed duration=0 grep INFO 2026-01-11T16:03:02 +0ms service=tool.registry status=completed duration=0 edit INFO 2026-01-11T16:03:02 +0ms service=tool.registry status=completed duration=0 write INFO 2026-01-11T16:03:02 +0ms service=tool.registry status=completed duration=0 webfetch INFO 2026-01-11T16:03:02 +0ms service=tool.registry status=completed duration=0 todowrite INFO 2026-01-11T16:03:02 +0ms service=tool.registry status=completed duration=0 todoread INFO 2026-01-11T16:03:02 +0ms service=tool.registry status=completed duration=0 bash INFO 2026-01-11T16:03:02 +1ms service=tool.registry status=completed duration=1 skill INFO 2026-01-11T16:03:02 +0ms service=tool.registry status=completed duration=1 task INFO 2026-01-11T16:03:02 +2ms service=session.prompt status=completed duration=4 resolveTools INFO 2026-01-11T16:03:02 +1ms service=bus type=session.updated publishing INFO 2026-01-11T16:03:02 +1ms service=bus type=session.diff publishing INFO 2026-01-11T16:03:02 +1ms service=session.processor process INFO 2026-01-11T16:03:02 +0ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build stream INFO 2026-01-11T16:03:02 +0ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build params={"temperature":1,"topP":0.95,"topK":64,"options":{}} params INFO 2026-01-11T16:03:02 +4ms service=bus type=session.status publishing INFO 2026-01-11T16:03:02 +872ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:02 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:02 +29ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:03 +70ms service=bus type=message.part.updated publishing ERROR 2026-01-11T16:03:03 +96ms service=lsp.server error=Failed with exit code 1 Failed to extract clangd archive ERROR 2026-01-11T16:03:03 +0ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:03:03 +0ms service=default e=NotFoundError rejection INFO 2026-01-11T16:03:03 +8ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:03 +91ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:03 +2ms service=bus type=session.updated publishing INFO 2026-01-11T16:03:03 +63ms service=session.summary title=Fixing subtle C++ bugs title INFO 2026-01-11T16:03:03 +1ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:03 +19ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:03 +171ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:03 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:03 +15ms service=bus type=file.edited publishing INFO 2026-01-11T16:03:03 +1ms service=format file=/app/input/virtual_destructor.cpp formatting INFO 2026-01-11T16:03:03 +2ms service=format name=zig ext=.cpp checking INFO 2026-01-11T16:03:03 +0ms service=format name=uv format ext=.cpp checking INFO 2026-01-11T16:03:03 +0ms service=format name=terraform ext=.cpp checking INFO 2026-01-11T16:03:03 +0ms service=format name=standardrb ext=.cpp checking INFO 2026-01-11T16:03:03 +0ms service=format name=shfmt ext=.cpp checking INFO 2026-01-11T16:03:03 +0ms service=format name=ruff ext=.cpp checking INFO 2026-01-11T16:03:03 +1ms service=format name=rubocop ext=.cpp checking INFO 2026-01-11T16:03:03 +0ms service=format name=air ext=.cpp checking INFO 2026-01-11T16:03:03 +0ms service=format name=prettier ext=.cpp checking INFO 2026-01-11T16:03:03 +0ms service=format name=oxfmt ext=.cpp checking INFO 2026-01-11T16:03:03 +0ms service=format name=ocamlformat ext=.cpp checking INFO 2026-01-11T16:03:03 +0ms service=format name=nixfmt ext=.cpp checking INFO 2026-01-11T16:03:03 +0ms service=format name=mix ext=.cpp checking INFO 2026-01-11T16:03:03 +0ms service=format name=latexindent ext=.cpp checking INFO 2026-01-11T16:03:03 +0ms service=format name=ktlint ext=.cpp checking INFO 2026-01-11T16:03:03 +0ms service=format name=htmlbeautifier ext=.cpp checking INFO 2026-01-11T16:03:03 +0ms service=format name=gofmt ext=.cpp checking INFO 2026-01-11T16:03:03 +0ms service=format name=gleam ext=.cpp checking INFO 2026-01-11T16:03:03 +0ms service=format name=dart ext=.cpp checking INFO 2026-01-11T16:03:03 +0ms service=format name=clang-format ext=.cpp checking INFO 2026-01-11T16:03:03 +2ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:03 +2ms service=format name=biome ext=.cpp checking INFO 2026-01-11T16:03:03 +1ms service=file.time sessionID=ses_452342d67ffe4rYhsNKyeydq4H file=/app/input/virtual_destructor.cpp read INFO 2026-01-11T16:03:03 +0ms service=lsp file=/app/input/virtual_destructor.cpp touching file INFO 2026-01-11T16:03:03 +5ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:03 +3ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:03 +2ms service=bus type=message.updated publishing The bug in `virtual_destructor.cpp` is a classic C++ memory leak: the base class `Plugin` has a non-virtual destructor. When an object of the derived class `ImagePlugin` is deleted through a pointer to the base class `Plugin* p`, only the base class destructor (`~Plugin()`) is called, not the derived class destructor (`~ImagePlugin()`). This means `imageData_` in `ImagePlugin` is not deallocated, leading to a memory leak. The fix is to make the `Plugin` destructor `virtual`. I will apply the fix to line 12. |  Edit app/input/virtual_destructor.cpp INFO 2026-01-11T16:03:03 +30ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:03 +1ms service=bus type=session.status publishing INFO 2026-01-11T16:03:03 +0ms service=session.prompt step=5 sessionID=ses_452342d67ffe4rYhsNKyeydq4H loop INFO 2026-01-11T16:03:03 +27ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:03 +1ms service=bus type=session.updated publishing INFO 2026-01-11T16:03:03 +0ms service=bus type=session.diff publishing INFO 2026-01-11T16:03:03 +1ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:03 +0ms service=session.prompt status=started resolveTools INFO 2026-01-11T16:03:03 +1ms service=tool.registry status=started invalid INFO 2026-01-11T16:03:03 +0ms service=tool.registry status=started bash INFO 2026-01-11T16:03:03 +0ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-01-11T16:03:03 +0ms service=tool.registry status=started read INFO 2026-01-11T16:03:03 +0ms service=tool.registry status=started glob INFO 2026-01-11T16:03:03 +0ms service=tool.registry status=started grep INFO 2026-01-11T16:03:03 +0ms service=tool.registry status=started edit INFO 2026-01-11T16:03:03 +0ms service=tool.registry status=started write INFO 2026-01-11T16:03:03 +0ms service=tool.registry status=started task INFO 2026-01-11T16:03:03 +0ms service=tool.registry status=started webfetch INFO 2026-01-11T16:03:03 +0ms service=tool.registry status=started todowrite INFO 2026-01-11T16:03:03 +0ms service=tool.registry status=started todoread INFO 2026-01-11T16:03:03 +0ms service=tool.registry status=started skill INFO 2026-01-11T16:03:03 +0ms service=tool.registry status=completed duration=0 invalid INFO 2026-01-11T16:03:03 +0ms service=tool.registry status=completed duration=0 read INFO 2026-01-11T16:03:03 +0ms service=tool.registry status=completed duration=0 glob INFO 2026-01-11T16:03:03 +0ms service=tool.registry status=completed duration=0 grep INFO 2026-01-11T16:03:03 +0ms service=tool.registry status=completed duration=0 edit INFO 2026-01-11T16:03:03 +0ms service=tool.registry status=completed duration=0 write INFO 2026-01-11T16:03:03 +0ms service=tool.registry status=completed duration=0 webfetch INFO 2026-01-11T16:03:03 +0ms service=tool.registry status=completed duration=0 todowrite INFO 2026-01-11T16:03:03 +0ms service=tool.registry status=completed duration=0 todoread INFO 2026-01-11T16:03:03 +0ms service=tool.registry status=completed duration=0 bash INFO 2026-01-11T16:03:03 +0ms service=tool.registry status=completed duration=0 skill INFO 2026-01-11T16:03:03 +1ms service=tool.registry status=completed duration=1 task INFO 2026-01-11T16:03:03 +1ms service=session.prompt status=completed duration=3 resolveTools INFO 2026-01-11T16:03:03 +2ms service=session.processor process INFO 2026-01-11T16:03:03 +0ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build stream INFO 2026-01-11T16:03:03 +0ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build params={"temperature":1,"topP":0.95,"topK":64,"options":{}} params INFO 2026-01-11T16:03:03 +2ms service=bus type=session.status publishing INFO 2026-01-11T16:03:03 +360ms service=session.summary title=Fixing C++ subtle bugs title INFO 2026-01-11T16:03:03 +0ms service=bus type=message.updated publishing ERROR 2026-01-11T16:03:04 +194ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:03:04 +1ms service=default e=NotFoundError rejection INFO 2026-01-11T16:03:04 +133ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:04 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:04 +49ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:04 +59ms service=bus type=message.part.updated publishing ERROR 2026-01-11T16:03:05 +897ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:03:05 +0ms service=default e=NotFoundError rejection INFO 2026-01-11T16:03:06 +1030ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:06 +8ms service=bus type=todo.updated publishing INFO 2026-01-11T16:03:06 +2ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:06 +16ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:06 +5ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:06 +2ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:06 +1ms service=bus type=message.updated publishing |  Todo 7 todos I have fixed `virtual_destructor.cpp`. Now I will update the todo list and move to the next file, `reference_to_temporary.cpp`. INFO 2026-01-11T16:03:06 +17ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:06 +0ms service=bus type=session.status publishing INFO 2026-01-11T16:03:06 +0ms service=session.prompt step=6 sessionID=ses_452342d67ffe4rYhsNKyeydq4H loop INFO 2026-01-11T16:03:06 +54ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:06 +3ms service=bus type=session.updated publishing INFO 2026-01-11T16:03:06 +1ms service=bus type=session.diff publishing INFO 2026-01-11T16:03:06 +16ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:06 +1ms service=session.prompt status=started resolveTools INFO 2026-01-11T16:03:06 +0ms service=tool.registry status=started invalid INFO 2026-01-11T16:03:06 +0ms service=tool.registry status=started bash INFO 2026-01-11T16:03:06 +0ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-01-11T16:03:06 +0ms service=tool.registry status=started read INFO 2026-01-11T16:03:06 +0ms service=tool.registry status=started glob INFO 2026-01-11T16:03:06 +0ms service=tool.registry status=started grep INFO 2026-01-11T16:03:06 +0ms service=tool.registry status=started edit INFO 2026-01-11T16:03:06 +0ms service=tool.registry status=started write INFO 2026-01-11T16:03:06 +0ms service=tool.registry status=started task INFO 2026-01-11T16:03:06 +0ms service=tool.registry status=started webfetch INFO 2026-01-11T16:03:06 +0ms service=tool.registry status=started todowrite INFO 2026-01-11T16:03:06 +0ms service=tool.registry status=started todoread INFO 2026-01-11T16:03:06 +0ms service=tool.registry status=started skill INFO 2026-01-11T16:03:06 +0ms service=tool.registry status=completed duration=0 invalid INFO 2026-01-11T16:03:06 +0ms service=tool.registry status=completed duration=0 read INFO 2026-01-11T16:03:06 +0ms service=tool.registry status=completed duration=0 glob INFO 2026-01-11T16:03:06 +0ms service=tool.registry status=completed duration=0 grep INFO 2026-01-11T16:03:06 +0ms service=tool.registry status=completed duration=0 edit INFO 2026-01-11T16:03:06 +0ms service=tool.registry status=completed duration=0 write INFO 2026-01-11T16:03:06 +0ms service=tool.registry status=completed duration=0 webfetch INFO 2026-01-11T16:03:06 +0ms service=tool.registry status=completed duration=0 todowrite INFO 2026-01-11T16:03:06 +0ms service=tool.registry status=completed duration=0 todoread INFO 2026-01-11T16:03:06 +0ms service=tool.registry status=completed duration=0 bash INFO 2026-01-11T16:03:06 +0ms service=tool.registry status=completed duration=0 skill INFO 2026-01-11T16:03:06 +0ms service=tool.registry status=completed duration=0 task INFO 2026-01-11T16:03:06 +8ms service=session.prompt status=completed duration=8 resolveTools INFO 2026-01-11T16:03:06 +9ms service=session.processor process INFO 2026-01-11T16:03:06 +0ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build stream INFO 2026-01-11T16:03:06 +0ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build params={"temperature":1,"topP":0.95,"topK":64,"options":{}} params INFO 2026-01-11T16:03:06 +3ms service=bus type=session.status publishing INFO 2026-01-11T16:03:07 +639ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:07 +3ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:07 +29ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:07 +90ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:07 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:07 +2ms service=lsp file=/app/input/reference_to_temporary.cpp touching file INFO 2026-01-11T16:03:07 +0ms service=file.time sessionID=ses_452342d67ffe4rYhsNKyeydq4H file=/app/input/reference_to_temporary.cpp read INFO 2026-01-11T16:03:07 +1ms service=bus type=message.part.updated publishing |  Read app/input/reference_to_temporary.cpp INFO 2026-01-11T16:03:07 +34ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:07 +3ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:07 +3ms service=bus type=message.updated publishing Now I will read the content of `reference_to_temporary.cpp`. INFO 2026-01-11T16:03:07 +22ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:07 +1ms service=bus type=session.status publishing INFO 2026-01-11T16:03:07 +0ms service=session.prompt step=7 sessionID=ses_452342d67ffe4rYhsNKyeydq4H loop ERROR 2026-01-11T16:03:07 +30ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:03:07 +1ms service=default e=NotFoundError rejection INFO 2026-01-11T16:03:07 +3ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:07 +1ms service=bus type=session.updated publishing INFO 2026-01-11T16:03:07 +1ms service=bus type=session.diff publishing INFO 2026-01-11T16:03:07 +6ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:07 +0ms service=session.prompt status=started resolveTools INFO 2026-01-11T16:03:07 +1ms service=tool.registry status=started invalid INFO 2026-01-11T16:03:07 +0ms service=tool.registry status=started bash INFO 2026-01-11T16:03:07 +0ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-01-11T16:03:07 +0ms service=tool.registry status=started read INFO 2026-01-11T16:03:07 +1ms service=tool.registry status=started glob INFO 2026-01-11T16:03:07 +0ms service=tool.registry status=started grep INFO 2026-01-11T16:03:07 +0ms service=tool.registry status=started edit INFO 2026-01-11T16:03:07 +0ms service=tool.registry status=started write INFO 2026-01-11T16:03:07 +0ms service=tool.registry status=started task INFO 2026-01-11T16:03:07 +0ms service=tool.registry status=started webfetch INFO 2026-01-11T16:03:07 +0ms service=tool.registry status=started todowrite INFO 2026-01-11T16:03:07 +0ms service=tool.registry status=started todoread INFO 2026-01-11T16:03:07 +0ms service=tool.registry status=started skill INFO 2026-01-11T16:03:07 +0ms service=tool.registry status=completed duration=1 invalid INFO 2026-01-11T16:03:07 +0ms service=tool.registry status=completed duration=1 read INFO 2026-01-11T16:03:07 +0ms service=tool.registry status=completed duration=0 glob INFO 2026-01-11T16:03:07 +0ms service=tool.registry status=completed duration=0 grep INFO 2026-01-11T16:03:07 +0ms service=tool.registry status=completed duration=0 edit INFO 2026-01-11T16:03:07 +0ms service=tool.registry status=completed duration=0 write INFO 2026-01-11T16:03:07 +0ms service=tool.registry status=completed duration=0 webfetch INFO 2026-01-11T16:03:07 +0ms service=tool.registry status=completed duration=0 todowrite INFO 2026-01-11T16:03:07 +0ms service=tool.registry status=completed duration=0 todoread INFO 2026-01-11T16:03:07 +0ms service=tool.registry status=completed duration=1 bash INFO 2026-01-11T16:03:07 +1ms service=tool.registry status=completed duration=1 skill INFO 2026-01-11T16:03:07 +0ms service=tool.registry status=completed duration=1 task INFO 2026-01-11T16:03:07 +4ms service=session.prompt status=completed duration=7 resolveTools INFO 2026-01-11T16:03:07 +4ms service=session.processor process INFO 2026-01-11T16:03:07 +0ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build stream INFO 2026-01-11T16:03:07 +0ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build params={"temperature":1,"topP":0.95,"topK":64,"options":{}} params INFO 2026-01-11T16:03:07 +6ms service=bus type=session.status publishing INFO 2026-01-11T16:03:07 +619ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:07 +2ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:07 +47ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:08 +82ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:08 +99ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:08 +89ms service=bus type=message.part.updated publishing ERROR 2026-01-11T16:03:08 +40ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:03:08 +0ms service=default e=NotFoundError rejection INFO 2026-01-11T16:03:08 +183ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:08 +130ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:08 +264ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:08 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:08 +2ms service=bus type=file.edited publishing INFO 2026-01-11T16:03:08 +0ms service=format file=/app/input/reference_to_temporary.cpp formatting INFO 2026-01-11T16:03:08 +0ms service=format name=zig ext=.cpp checking INFO 2026-01-11T16:03:08 +0ms service=format name=uv format ext=.cpp checking INFO 2026-01-11T16:03:08 +0ms service=format name=terraform ext=.cpp checking INFO 2026-01-11T16:03:08 +0ms service=format name=standardrb ext=.cpp checking INFO 2026-01-11T16:03:08 +0ms service=format name=shfmt ext=.cpp checking INFO 2026-01-11T16:03:08 +0ms service=format name=ruff ext=.cpp checking INFO 2026-01-11T16:03:08 +0ms service=format name=rubocop ext=.cpp checking INFO 2026-01-11T16:03:08 +0ms service=format name=air ext=.cpp checking INFO 2026-01-11T16:03:08 +0ms service=format name=prettier ext=.cpp checking INFO 2026-01-11T16:03:08 +0ms service=format name=oxfmt ext=.cpp checking INFO 2026-01-11T16:03:08 +0ms service=format name=ocamlformat ext=.cpp checking INFO 2026-01-11T16:03:08 +0ms service=format name=nixfmt ext=.cpp checking INFO 2026-01-11T16:03:08 +0ms service=format name=mix ext=.cpp checking INFO 2026-01-11T16:03:08 +0ms service=format name=latexindent ext=.cpp checking INFO 2026-01-11T16:03:08 +0ms service=format name=ktlint ext=.cpp checking INFO 2026-01-11T16:03:08 +0ms service=format name=htmlbeautifier ext=.cpp checking INFO 2026-01-11T16:03:08 +0ms service=format name=gofmt ext=.cpp checking INFO 2026-01-11T16:03:08 +0ms service=format name=gleam ext=.cpp checking INFO 2026-01-11T16:03:08 +0ms service=format name=dart ext=.cpp checking INFO 2026-01-11T16:03:08 +0ms service=format name=clang-format ext=.cpp checking INFO 2026-01-11T16:03:08 +0ms service=format name=biome ext=.cpp checking INFO 2026-01-11T16:03:08 +1ms service=file.time sessionID=ses_452342d67ffe4rYhsNKyeydq4H file=/app/input/reference_to_temporary.cpp read INFO 2026-01-11T16:03:08 +0ms service=lsp file=/app/input/reference_to_temporary.cpp touching file INFO 2026-01-11T16:03:08 +2ms service=bus type=message.part.updated publishing |  Edit app/input/reference_to_temporary.cpp INFO 2026-01-11T16:03:08 +31ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:08 +4ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:08 +2ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:08 +6ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:08 +0ms service=bus type=session.status publishing INFO 2026-01-11T16:03:08 +1ms service=session.prompt step=8 sessionID=ses_452342d67ffe4rYhsNKyeydq4H loop The bug in `reference_to_temporary.cpp` is that `getAppName()` returns a `const std::string&` (a reference) to a temporary `std::string` object created inside the function: `std::string("MyApplication")`. This temporary object is destroyed immediately after the function returns, making the returned reference dangling. When `appName` is used in `main`, it is accessing a memory location that is no longer valid. The fix is to return the `std::string` by value instead of by reference, so a copy is made and the temporary's destruction doesn't affect the caller's variable. The compiler will likely optimize this using Return Value Optimization (RVO). I will modify line 8 to return `std::string` by value. I will modify line 8 to return `std::string` instead of `const std::string&`. INFO 2026-01-11T16:03:08 +15ms service=session.summary title=Debugging 8 C++ subtle bugs title INFO 2026-01-11T16:03:08 +0ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:08 +29ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:08 +2ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:08 +0ms service=session.prompt status=started resolveTools INFO 2026-01-11T16:03:08 +1ms service=tool.registry status=started invalid INFO 2026-01-11T16:03:08 +0ms service=tool.registry status=started bash INFO 2026-01-11T16:03:08 +0ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-01-11T16:03:08 +1ms service=tool.registry status=started read INFO 2026-01-11T16:03:08 +0ms service=tool.registry status=started glob INFO 2026-01-11T16:03:08 +0ms service=tool.registry status=started grep INFO 2026-01-11T16:03:08 +0ms service=tool.registry status=started edit INFO 2026-01-11T16:03:08 +0ms service=tool.registry status=started write INFO 2026-01-11T16:03:08 +0ms service=tool.registry status=started task INFO 2026-01-11T16:03:08 +0ms service=tool.registry status=started webfetch INFO 2026-01-11T16:03:08 +0ms service=tool.registry status=started todowrite INFO 2026-01-11T16:03:08 +0ms service=tool.registry status=started todoread INFO 2026-01-11T16:03:08 +0ms service=tool.registry status=started skill INFO 2026-01-11T16:03:08 +0ms service=tool.registry status=completed duration=1 invalid INFO 2026-01-11T16:03:08 +1ms service=tool.registry status=completed duration=1 read INFO 2026-01-11T16:03:08 +0ms service=tool.registry status=completed duration=1 glob INFO 2026-01-11T16:03:08 +0ms service=tool.registry status=completed duration=1 grep INFO 2026-01-11T16:03:08 +0ms service=tool.registry status=completed duration=1 edit INFO 2026-01-11T16:03:08 +0ms service=tool.registry status=completed duration=1 write INFO 2026-01-11T16:03:08 +0ms service=tool.registry status=completed duration=1 webfetch INFO 2026-01-11T16:03:08 +0ms service=tool.registry status=completed duration=1 todowrite INFO 2026-01-11T16:03:08 +0ms service=tool.registry status=completed duration=1 todoread INFO 2026-01-11T16:03:08 +0ms service=tool.registry status=completed duration=2 bash INFO 2026-01-11T16:03:08 +1ms service=tool.registry status=completed duration=2 skill INFO 2026-01-11T16:03:08 +0ms service=tool.registry status=completed duration=2 task INFO 2026-01-11T16:03:08 +3ms service=session.prompt status=completed duration=7 resolveTools INFO 2026-01-11T16:03:08 +3ms service=bus type=session.updated publishing INFO 2026-01-11T16:03:08 +0ms service=bus type=session.diff publishing INFO 2026-01-11T16:03:08 +24ms service=session.processor process INFO 2026-01-11T16:03:08 +0ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build stream INFO 2026-01-11T16:03:08 +1ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build params={"temperature":1,"topP":0.95,"topK":64,"options":{}} params INFO 2026-01-11T16:03:09 +12ms service=bus type=session.status publishing ERROR 2026-01-11T16:03:09 +465ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:03:09 +0ms service=default e=NotFoundError rejection INFO 2026-01-11T16:03:09 +142ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:09 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:09 +38ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:09 +62ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:09 +191ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:09 +73ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:10 +96ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:10 +4ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:10 +3ms service=lsp file=/app/input/reference_to_temporary.cpp touching file INFO 2026-01-11T16:03:10 +1ms service=file.time sessionID=ses_452342d67ffe4rYhsNKyeydq4H file=/app/input/reference_to_temporary.cpp read INFO 2026-01-11T16:03:10 +2ms service=bus type=message.part.updated publishing |  Read app/input/reference_to_temporary.cpp INFO 2026-01-11T16:03:10 +12ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:10 +2ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:10 +1ms service=bus type=message.updated publishing I have fixed `reference_to_temporary.cpp`. Now I will update the todo list and move to the next file, `iterator_invalidation.cpp`. I also need to change the function body to return by value too. Oh wait, I am not seeing the function body. The function body is at line 9. I will check the file again to ensure my edit on line 8 is correct. INFO 2026-01-11T16:03:10 +9ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:10 +1ms service=bus type=session.status publishing INFO 2026-01-11T16:03:10 +0ms service=session.prompt step=9 sessionID=ses_452342d67ffe4rYhsNKyeydq4H loop INFO 2026-01-11T16:03:10 +15ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:10 +1ms service=bus type=session.updated publishing INFO 2026-01-11T16:03:10 +1ms service=bus type=session.diff publishing INFO 2026-01-11T16:03:10 +1ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:10 +0ms service=session.prompt status=started resolveTools INFO 2026-01-11T16:03:10 +1ms service=tool.registry status=started invalid INFO 2026-01-11T16:03:10 +0ms service=tool.registry status=started bash INFO 2026-01-11T16:03:10 +0ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-01-11T16:03:10 +1ms service=tool.registry status=started read INFO 2026-01-11T16:03:10 +0ms service=tool.registry 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stream INFO 2026-01-11T16:03:10 +1ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build params={"temperature":1,"topP":0.95,"topK":64,"options":{}} params INFO 2026-01-11T16:03:10 +3ms service=bus type=session.status publishing ERROR 2026-01-11T16:03:10 +469ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:03:10 +0ms service=default e=NotFoundError rejection INFO 2026-01-11T16:03:10 +107ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:10 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:10 +100ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:10 +94ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:11 +164ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:11 +167ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:11 +297ms service=bus type=message.part.updated publishing ERROR 2026-01-11T16:03:11 +177ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:03:11 +0ms service=default e=NotFoundError rejection INFO 2026-01-11T16:03:11 +46ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:11 +89ms service=bus type=message.part.updated publishing ERROR 2026-01-11T16:03:12 +915ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:03:12 +1ms service=default e=NotFoundError rejection INFO 2026-01-11T16:03:13 +309ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:13 +1ms service=bus type=todo.updated publishing INFO 2026-01-11T16:03:13 +2ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:13 +4ms service=bus type=message.part.updated publishing |  Todo 6 todos INFO 2026-01-11T16:03:13 +8ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:13 +6ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:13 +0ms service=bus type=message.updated publishing My previous edit on line 8 changed the function signature to return by value: `std::string getAppName()`. The function body on line 9 already creates a temporary and returns it, which is the correct pattern for return-by-value, especially with RVO. The comment on line 9 is now misleading, but the code is fixed. However, I notice in `main` on line 20, the local variable is still initialized with a reference: `const std::string& appName = config.getAppName();`. While this is syntactically fine because a temporary returned by value is bound to the const reference, avoiding a copy, the original intent of the exercise was to fix the dangling reference *bug* in the function itself. Returning by value is the correct fix. Since the bug was in the function definition (line 8) and I fixed it, I'll consider this file done. The compiler will now be able to safely bind the returned value to the const reference in `main`. Next is `iterator_invalidation.cpp`. I'll update the todo list. INFO 2026-01-11T16:03:13 +26ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:13 +0ms service=bus type=session.status publishing INFO 2026-01-11T16:03:13 +0ms service=session.prompt step=10 sessionID=ses_452342d67ffe4rYhsNKyeydq4H loop INFO 2026-01-11T16:03:13 +63ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:13 +0ms service=bus type=session.updated publishing INFO 2026-01-11T16:03:13 +1ms service=bus type=session.diff publishing INFO 2026-01-11T16:03:13 +5ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:13 +0ms service=session.prompt status=started resolveTools INFO 2026-01-11T16:03:13 +0ms service=tool.registry status=started invalid INFO 2026-01-11T16:03:13 +2ms service=tool.registry status=started bash INFO 2026-01-11T16:03:13 +0ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-01-11T16:03:13 +0ms service=tool.registry status=started read INFO 2026-01-11T16:03:13 +0ms service=tool.registry status=started glob INFO 2026-01-11T16:03:13 +0ms service=tool.registry status=started grep INFO 2026-01-11T16:03:13 +0ms service=tool.registry status=started edit INFO 2026-01-11T16:03:13 +0ms service=tool.registry status=started write INFO 2026-01-11T16:03:13 +0ms service=tool.registry status=started task INFO 2026-01-11T16:03:13 +0ms service=tool.registry status=started webfetch INFO 2026-01-11T16:03:13 +0ms service=tool.registry status=started todowrite INFO 2026-01-11T16:03:13 +0ms service=tool.registry status=started todoread INFO 2026-01-11T16:03:13 +0ms service=tool.registry status=started skill INFO 2026-01-11T16:03:13 +0ms service=tool.registry status=completed duration=2 invalid INFO 2026-01-11T16:03:13 +0ms service=tool.registry status=completed duration=0 read INFO 2026-01-11T16:03:13 +0ms service=tool.registry status=completed duration=0 glob INFO 2026-01-11T16:03:13 +0ms service=tool.registry status=completed duration=0 grep INFO 2026-01-11T16:03:13 +1ms service=tool.registry status=completed duration=1 edit INFO 2026-01-11T16:03:13 +0ms service=tool.registry status=completed duration=1 write INFO 2026-01-11T16:03:13 +0ms service=tool.registry status=completed duration=1 webfetch INFO 2026-01-11T16:03:13 +0ms service=tool.registry status=completed duration=1 todowrite INFO 2026-01-11T16:03:13 +0ms service=tool.registry status=completed duration=1 todoread INFO 2026-01-11T16:03:13 +0ms service=tool.registry status=completed duration=1 bash INFO 2026-01-11T16:03:13 +0ms service=tool.registry status=completed duration=1 skill INFO 2026-01-11T16:03:13 +0ms service=tool.registry status=completed duration=1 task INFO 2026-01-11T16:03:13 +4ms service=session.prompt status=completed duration=7 resolveTools INFO 2026-01-11T16:03:13 +15ms service=session.processor process INFO 2026-01-11T16:03:13 +1ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build stream INFO 2026-01-11T16:03:13 +0ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build params={"temperature":1,"topP":0.95,"topK":64,"options":{}} params INFO 2026-01-11T16:03:13 +3ms service=bus type=session.status publishing INFO 2026-01-11T16:03:13 +611ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:13 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:13 +36ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:13 +123ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:13 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:14 +2ms service=lsp file=/app/input/iterator_invalidation.cpp touching file INFO 2026-01-11T16:03:14 +0ms service=file.time sessionID=ses_452342d67ffe4rYhsNKyeydq4H file=/app/input/iterator_invalidation.cpp read INFO 2026-01-11T16:03:14 +3ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:14 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:14 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:14 +0ms service=bus type=message.updated publishing Now I will read the content of `iterator_invalidation.cpp`. |  Read app/input/iterator_invalidation.cpp INFO 2026-01-11T16:03:14 +3ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:14 +1ms service=bus type=session.status publishing INFO 2026-01-11T16:03:14 +0ms service=session.prompt step=11 sessionID=ses_452342d67ffe4rYhsNKyeydq4H loop INFO 2026-01-11T16:03:14 +36ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:14 +1ms service=bus type=session.updated publishing INFO 2026-01-11T16:03:14 +1ms service=bus type=session.diff publishing INFO 2026-01-11T16:03:14 +22ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:14 +1ms service=session.prompt status=started resolveTools INFO 2026-01-11T16:03:14 +0ms service=tool.registry status=started invalid INFO 2026-01-11T16:03:14 +0ms service=tool.registry status=started bash INFO 2026-01-11T16:03:14 +0ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-01-11T16:03:14 +1ms service=tool.registry status=started read INFO 2026-01-11T16:03:14 +0ms service=tool.registry status=started glob INFO 2026-01-11T16:03:14 +1ms service=tool.registry status=started grep INFO 2026-01-11T16:03:14 +0ms service=tool.registry status=started edit INFO 2026-01-11T16:03:14 +1ms service=tool.registry status=started write INFO 2026-01-11T16:03:14 +0ms service=tool.registry status=started task INFO 2026-01-11T16:03:14 +0ms service=tool.registry status=started webfetch INFO 2026-01-11T16:03:14 +0ms service=tool.registry status=started todowrite INFO 2026-01-11T16:03:14 +0ms service=tool.registry status=started todoread INFO 2026-01-11T16:03:14 +0ms service=tool.registry status=started skill INFO 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status=completed duration=2 task INFO 2026-01-11T16:03:14 +4ms service=session.prompt status=completed duration=9 resolveTools ERROR 2026-01-11T16:03:14 +8ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:03:14 +0ms service=default e=NotFoundError rejection INFO 2026-01-11T16:03:14 +2ms service=session.processor process INFO 2026-01-11T16:03:14 +0ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build stream INFO 2026-01-11T16:03:14 +1ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build params={"temperature":1,"topP":0.95,"topK":64,"options":{}} params INFO 2026-01-11T16:03:14 +8ms service=bus type=session.status publishing INFO 2026-01-11T16:03:14 +626ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:14 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:14 +60ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:14 +74ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:15 +161ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:15 +138ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:15 +230ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:15 +180ms service=bus type=message.part.updated publishing ERROR 2026-01-11T16:03:15 +157ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:03:15 +0ms service=default e=NotFoundError rejection INFO 2026-01-11T16:03:15 +104ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:16 +316ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:16 +230ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:16 +230ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:16 +180ms service=bus type=message.part.updated publishing ERROR 2026-01-11T16:03:16 +58ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:03:16 +0ms service=default e=NotFoundError rejection INFO 2026-01-11T16:03:17 +274ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:17 +261ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:17 +263ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:17 +175ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:17 +168ms service=bus type=message.part.updated publishing ERROR 2026-01-11T16:03:18 +139ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:03:18 +0ms service=default e=NotFoundError rejection INFO 2026-01-11T16:03:18 +200ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:18 +318ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:18 +274ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:19 +194ms service=bus type=message.part.updated publishing ERROR 2026-01-11T16:03:19 +216ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:03:19 +1ms service=default e=NotFoundError rejection INFO 2026-01-11T16:03:19 +63ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:19 +163ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:19 +173ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:20 +278ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:20 +181ms service=bus type=message.part.updated publishing ERROR 2026-01-11T16:03:20 +207ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:03:20 +0ms service=default e=NotFoundError rejection INFO 2026-01-11T16:03:20 +60ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:20 +158ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:20 +165ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:20 +158ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:21 +212ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:21 +204ms service=bus type=message.part.updated publishing ERROR 2026-01-11T16:03:21 +107ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:03:21 +0ms service=default e=NotFoundError rejection INFO 2026-01-11T16:03:21 +72ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:21 +162ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:21 +177ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:22 +567ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:22 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:22 +2ms service=bus type=file.edited publishing INFO 2026-01-11T16:03:22 +1ms service=format file=/app/input/iterator_invalidation.cpp formatting INFO 2026-01-11T16:03:22 +0ms service=format name=zig ext=.cpp checking INFO 2026-01-11T16:03:22 +0ms service=format name=uv format ext=.cpp checking INFO 2026-01-11T16:03:22 +0ms service=format name=terraform ext=.cpp checking INFO 2026-01-11T16:03:22 +0ms service=format name=standardrb ext=.cpp checking INFO 2026-01-11T16:03:22 +0ms service=format name=shfmt ext=.cpp checking INFO 2026-01-11T16:03:22 +0ms service=format name=ruff ext=.cpp checking INFO 2026-01-11T16:03:22 +0ms service=format name=rubocop ext=.cpp checking INFO 2026-01-11T16:03:22 +0ms service=format name=air ext=.cpp checking INFO 2026-01-11T16:03:22 +0ms service=format name=prettier ext=.cpp checking INFO 2026-01-11T16:03:22 +0ms service=format name=oxfmt ext=.cpp checking INFO 2026-01-11T16:03:22 +0ms service=format name=ocamlformat ext=.cpp checking INFO 2026-01-11T16:03:22 +0ms service=format name=nixfmt ext=.cpp checking INFO 2026-01-11T16:03:22 +1ms service=format name=mix ext=.cpp checking INFO 2026-01-11T16:03:22 +0ms service=format name=latexindent ext=.cpp checking INFO 2026-01-11T16:03:22 +0ms service=format name=ktlint ext=.cpp checking INFO 2026-01-11T16:03:22 +0ms service=format name=htmlbeautifier ext=.cpp checking INFO 2026-01-11T16:03:22 +0ms service=format name=gofmt ext=.cpp checking INFO 2026-01-11T16:03:22 +0ms service=format name=gleam ext=.cpp checking INFO 2026-01-11T16:03:22 +0ms service=format name=dart ext=.cpp checking INFO 2026-01-11T16:03:22 +0ms service=format name=clang-format ext=.cpp checking INFO 2026-01-11T16:03:22 +0ms service=format name=biome ext=.cpp checking INFO 2026-01-11T16:03:22 +1ms service=file.time sessionID=ses_452342d67ffe4rYhsNKyeydq4H file=/app/input/iterator_invalidation.cpp read INFO 2026-01-11T16:03:22 +1ms service=lsp file=/app/input/iterator_invalidation.cpp touching file INFO 2026-01-11T16:03:22 +6ms service=bus type=message.part.updated publishing |  Edit app/input/iterator_invalidation.cpp INFO 2026-01-11T16:03:22 +8ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:22 +2ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:22 +2ms service=bus type=message.updated publishing The bug in `iterator_invalidation.cpp` is that modifying the `std::vector` (specifically, calling `events_.push_back` on line 21) while iterating over it with iterators (line 16) invalidates all existing iterators, including `it` and the one used for `events_.end()`. This leads to undefined behavior, often a crash or corrupted memory access. The `push_back` operation can cause the vector to reallocate its underlying memory if its capacity is exceeded, which is what invalidates the iterators. A common fix is to use a traditional index-based `for` loop if the size of the container is guaranteed not to decrease (which is the case here). Since we are adding elements, we need to be careful with the loop condition to ensure we iterate over the *original* set of events, or adjust the iteration limits correctly if we want to process the newly added events as well. Since the newly added events are *derived* events, they should probably be processed in the next call to `processEvents`, or we need to ensure the loop terminates correctly. The simplest fix that prevents the iterator invalidation and ensures we process the initial batch is to use an index-based loop and cache the original size. However, the simpler fix here is to realize that `std::vector` iterators are only invalidated if a *reallocation* occurs. If we want to safely add elements, we must ensure there is enough capacity *before* the loop. But, the user likely intends to demonstrate iterator invalidation due to size changes. The most robust way to handle adding elements to a vector during iteration is to avoid iterating over the vector itself for the processing logic, or to iterate over a copy, or to use an index-based loop with careful size management. Given the context, I will use an index-based loop and capture the size before the loop starts to ensure we only process the original elements. Change lines 16 and 17: From: ```cpp 00016| for (auto it = events_.begin(); it != events_.end(); ++it) { 00017| std::cout << "Event: " << *it << std::endl; ``` To: ```cpp 00016| size_t original_size = events_.size(); 00017| for (size_t i = 0; i < original_size; ++i) { 00018| std::cout << "Event: " << events_[i] << std::endl; ``` This requires shifting line numbers for subsequent lines. A simpler way is to keep the iterator, but to pre-reserve the capacity, if we can estimate the capacity needed. The problem states it's an iterator invalidation bug, which suggests *any* modification to the vector, even if capacity is enough, could be suspicious, though only reallocation truly invalidates all iterators. Since the `push_back` is inside the loop, the simplest *fix* is to ensure that the loop iterates safely. I will use the index-based approach and modify the code using the `edit` tool. I need to apply two edits to lines 16-17. I will combine them into one edit that replaces line 16 and 17. Old lines: ```cpp 00016| for (auto it = events_.begin(); it != events_.end(); ++it) { 00017| std::cout << "Event: " << *it << std::endl; ``` New lines: ```cpp 00016| size_t original_size = events_.size(); 00017| for (size_t i = 0; i < original_size; ++i) { 00018| std::cout << "Event: " << events_[i] << std::endl; ``` This is not clean because it introduces a new variable and changes the type of loop. A more idiomatic C++ fix in this scenario, if the intention is to only process the original events and allow new ones for next time, is to iterate over a copy of the indices or use a `std::for_each` over a safe range. Another, and cleaner fix, is to use a `std::vector` and process events, adding new events to a separate list to be merged later, but that's a big change. The most direct fix for this kind of subtle bug is to use the ranged-for loop (which relies on `begin()` and `end()` iterators), but iterate over a *copy* of the vector: ```cpp // Iterate over a copy to prevent iterator invalidation std::vector current_events = events_; for (const auto& event : current_events) { std::cout << "Event: " << event << std::endl; // Add derived event during iteration if (event == "user_login") { events_.push_back("log_analytics"); // Now safely modifying the main vector } } ``` This is a bit too much code change for a "subtle bug fix." Let's stick to the simplest one, which is the index-based loop using the original size. This fits the "subtle fix" better. The changes are: 1. Insert line 16: ` size_t original_size = events_.size();` 2. Change line 16: `for (auto it = events_.begin(); it != events_.end(); ++it)` to `for (size_t i = 0; i < original_size; ++i)` 3. Change line 17: `std::cout << "Event: " << *it << std::endl;` to `std::cout << "Event: " << events_[i] << std::endl;` 4. Change line 20: `if (*it == "user_login") {` to `if (events_[i] == "user_login") {` I can't do multiple line edits easily. I will combine the replacement of lines 16-17 into one `edit` call and then the replacement of line 20 into another `edit` call. Line 16-17 replacement: Old: ```cpp 00016| for (auto it = events_.begin(); it != events_.end(); ++it) { 00017| std::cout << "Event: " << *it << std::endl; ``` This is two lines of code, so I can't combine them into a single `oldString`. I will use a single `edit` call to replace the entire `for` loop body starting from line 16 up to line 23. Old block (Lines 16-23): ```cpp 00016| for (auto it = events_.begin(); it != events_.end(); ++it) { 00017| std::cout << "Event: " << *it << std::endl; 00018| 00019| // Add derived event during iteration 00020| if (*it == "user_login") { 00021| events_.push_back("log_analytics"); // Invalidates iterator! 00022| } 00023| } ``` New block: ```cpp size_t original_size = events_.size(); for (size_t i = 0; i < original_size; ++i) { std::cout << "Event: " << events_[i] << std::endl; // Add derived event during iteration if (events_[i] == "user_login") { events_.push_back("log_analytics"); } } ``` This is a large replacement. Let's make it more targeted. I will use the index-based loop. First, I will replace line 16 and 17. I will replace line 16-23 in one go. Old string: ```cpp for (auto it = events_.begin(); it != events_.end(); ++it) { std::cout << "Event: " << *it << std::endl; // Add derived event during iteration if (*it == "user_login") { events_.push_back("log_analytics"); // Invalidates iterator! } } ``` New string: ```cpp const size_t initial_size = events_.size(); for (size_t i = 0; i < initial_size; ++i) { std::cout << "Event: " << events_[i] << std::endl; // Add derived event during iteration if (events_[i] == "user_login") { events_.push_back("log_analytics"); } } ``` This replacement is large but safer than multiple small edits that can mess up line numbers. INFO 2026-01-11T16:03:22 +17ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:22 +3ms service=bus type=session.status publishing INFO 2026-01-11T16:03:22 +1ms service=session.prompt step=12 sessionID=ses_452342d67ffe4rYhsNKyeydq4H loop INFO 2026-01-11T16:03:22 +32ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:22 +2ms service=bus type=session.updated publishing INFO 2026-01-11T16:03:22 +0ms service=bus type=session.diff publishing INFO 2026-01-11T16:03:22 +1ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:22 +0ms service=session.prompt status=started resolveTools INFO 2026-01-11T16:03:22 +1ms service=tool.registry status=started invalid INFO 2026-01-11T16:03:22 +1ms service=tool.registry status=started bash INFO 2026-01-11T16:03:22 +0ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-01-11T16:03:22 +1ms service=tool.registry status=started read INFO 2026-01-11T16:03:22 +1ms service=tool.registry status=started glob INFO 2026-01-11T16:03:22 +0ms service=tool.registry status=started grep INFO 2026-01-11T16:03:22 +1ms service=tool.registry status=started edit INFO 2026-01-11T16:03:22 +0ms service=tool.registry status=started write INFO 2026-01-11T16:03:22 +0ms service=tool.registry status=started task INFO 2026-01-11T16:03:22 +1ms service=tool.registry status=started webfetch INFO 2026-01-11T16:03:22 +0ms service=tool.registry status=started todowrite INFO 2026-01-11T16:03:22 +0ms service=tool.registry status=started todoread INFO 2026-01-11T16:03:22 +0ms service=tool.registry status=started skill INFO 2026-01-11T16:03:22 +1ms service=tool.registry status=completed duration=6 invalid INFO 2026-01-11T16:03:22 +0ms service=tool.registry status=completed duration=4 read INFO 2026-01-11T16:03:22 +0ms service=tool.registry status=completed duration=3 glob INFO 2026-01-11T16:03:22 +1ms service=tool.registry status=completed duration=4 grep INFO 2026-01-11T16:03:22 +0ms service=tool.registry status=completed duration=3 edit INFO 2026-01-11T16:03:22 +0ms service=tool.registry status=completed duration=3 write INFO 2026-01-11T16:03:22 +0ms service=tool.registry status=completed duration=2 webfetch INFO 2026-01-11T16:03:22 +0ms service=tool.registry status=completed duration=2 todowrite INFO 2026-01-11T16:03:22 +0ms service=tool.registry status=completed duration=2 todoread INFO 2026-01-11T16:03:22 +0ms service=tool.registry status=completed duration=6 bash INFO 2026-01-11T16:03:22 +0ms service=tool.registry status=completed duration=2 skill INFO 2026-01-11T16:03:22 +1ms service=tool.registry status=completed duration=4 task INFO 2026-01-11T16:03:22 +3ms service=session.prompt status=completed duration=12 resolveTools ERROR 2026-01-11T16:03:22 +6ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:03:22 +0ms service=default e=NotFoundError rejection INFO 2026-01-11T16:03:22 +9ms service=session.processor process INFO 2026-01-11T16:03:22 +1ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build stream INFO 2026-01-11T16:03:22 +2ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build params={"temperature":1,"topP":0.95,"topK":64,"options":{}} params INFO 2026-01-11T16:03:22 +6ms service=bus type=session.status publishing INFO 2026-01-11T16:03:23 +663ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:23 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:23 +39ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:23 +47ms service=bus type=message.part.updated publishing ERROR 2026-01-11T16:03:24 +916ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:03:24 +0ms service=default e=NotFoundError rejection INFO 2026-01-11T16:03:25 +1617ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:25 +1ms service=bus type=todo.updated publishing INFO 2026-01-11T16:03:25 +2ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:25 +6ms service=bus type=message.part.updated publishing |  Todo 5 todos INFO 2026-01-11T16:03:25 +8ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:25 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:25 +0ms service=bus type=message.updated publishing I have fixed `iterator_invalidation.cpp`. I will update the todo list and move to the next file, `unsigned_underflow.cpp`. INFO 2026-01-11T16:03:25 +11ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:25 +0ms service=bus type=session.status publishing INFO 2026-01-11T16:03:25 +0ms service=session.prompt step=13 sessionID=ses_452342d67ffe4rYhsNKyeydq4H loop INFO 2026-01-11T16:03:25 +17ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:25 +1ms service=bus type=session.updated publishing INFO 2026-01-11T16:03:25 +1ms service=bus type=session.diff publishing INFO 2026-01-11T16:03:25 +4ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:25 +1ms service=session.prompt status=started resolveTools INFO 2026-01-11T16:03:25 +0ms service=tool.registry status=started invalid INFO 2026-01-11T16:03:25 +1ms service=tool.registry status=started bash INFO 2026-01-11T16:03:25 +0ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-01-11T16:03:25 +0ms service=tool.registry status=started read INFO 2026-01-11T16:03:25 +1ms service=tool.registry status=started glob INFO 2026-01-11T16:03:25 +0ms service=tool.registry status=started grep INFO 2026-01-11T16:03:25 +0ms service=tool.registry status=started edit INFO 2026-01-11T16:03:25 +0ms service=tool.registry status=started write INFO 2026-01-11T16:03:25 +0ms service=tool.registry status=started task INFO 2026-01-11T16:03:25 +1ms service=tool.registry status=started webfetch INFO 2026-01-11T16:03:25 +0ms service=tool.registry status=started todowrite INFO 2026-01-11T16:03:25 +0ms service=tool.registry status=started todoread INFO 2026-01-11T16:03:25 +0ms service=tool.registry status=started skill INFO 2026-01-11T16:03:25 +0ms service=tool.registry status=completed duration=3 invalid INFO 2026-01-11T16:03:25 +0ms service=tool.registry status=completed duration=2 read INFO 2026-01-11T16:03:25 +0ms service=tool.registry status=completed duration=1 glob INFO 2026-01-11T16:03:25 +0ms service=tool.registry status=completed duration=1 grep INFO 2026-01-11T16:03:25 +0ms service=tool.registry status=completed duration=1 edit INFO 2026-01-11T16:03:25 +0ms service=tool.registry status=completed duration=1 write INFO 2026-01-11T16:03:25 +0ms service=tool.registry status=completed duration=0 webfetch INFO 2026-01-11T16:03:25 +0ms service=tool.registry status=completed duration=0 todowrite INFO 2026-01-11T16:03:25 +1ms service=tool.registry status=completed duration=1 todoread INFO 2026-01-11T16:03:25 +0ms service=tool.registry status=completed duration=3 bash INFO 2026-01-11T16:03:25 +0ms service=tool.registry status=completed duration=1 skill INFO 2026-01-11T16:03:25 +0ms service=tool.registry status=completed duration=2 task INFO 2026-01-11T16:03:25 +3ms service=session.prompt status=completed duration=7 resolveTools INFO 2026-01-11T16:03:25 +7ms service=session.processor process INFO 2026-01-11T16:03:25 +1ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build stream INFO 2026-01-11T16:03:25 +0ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build params={"temperature":1,"topP":0.95,"topK":64,"options":{}} params INFO 2026-01-11T16:03:25 +6ms service=bus type=session.status publishing INFO 2026-01-11T16:03:26 +636ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:26 +7ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:26 +2ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:26 +130ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:26 +2ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:26 +1ms service=lsp file=/app/input/unsigned_underflow.cpp touching file INFO 2026-01-11T16:03:26 +0ms service=file.time sessionID=ses_452342d67ffe4rYhsNKyeydq4H file=/app/input/unsigned_underflow.cpp read INFO 2026-01-11T16:03:26 +3ms service=bus type=message.part.updated publishing |  Read app/input/unsigned_underflow.cpp INFO 2026-01-11T16:03:26 +17ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:26 +2ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:26 +0ms service=bus type=message.updated publishing Now I will read the content of `unsigned_underflow.cpp`. INFO 2026-01-11T16:03:26 +16ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:26 +0ms service=bus type=session.status publishing INFO 2026-01-11T16:03:26 +1ms service=session.prompt step=14 sessionID=ses_452342d67ffe4rYhsNKyeydq4H loop INFO 2026-01-11T16:03:26 +35ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:26 +2ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:26 +0ms service=session.prompt status=started resolveTools INFO 2026-01-11T16:03:26 +1ms service=tool.registry status=started invalid INFO 2026-01-11T16:03:26 +0ms service=tool.registry status=started bash INFO 2026-01-11T16:03:26 +0ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-01-11T16:03:26 +0ms service=tool.registry status=started read INFO 2026-01-11T16:03:26 +1ms service=tool.registry status=started glob INFO 2026-01-11T16:03:26 +0ms service=tool.registry status=started grep INFO 2026-01-11T16:03:26 +0ms service=tool.registry status=started edit INFO 2026-01-11T16:03:26 +0ms service=tool.registry status=started write INFO 2026-01-11T16:03:26 +0ms service=tool.registry status=started task INFO 2026-01-11T16:03:26 +0ms service=tool.registry status=started webfetch INFO 2026-01-11T16:03:26 +0ms service=tool.registry status=started todowrite INFO 2026-01-11T16:03:26 +0ms service=tool.registry status=started todoread INFO 2026-01-11T16:03:26 +0ms service=tool.registry status=started skill INFO 2026-01-11T16:03:26 +0ms service=tool.registry status=completed duration=1 invalid INFO 2026-01-11T16:03:26 +1ms service=tool.registry status=completed duration=2 read INFO 2026-01-11T16:03:26 +0ms service=tool.registry status=completed duration=1 glob INFO 2026-01-11T16:03:26 +0ms service=tool.registry status=completed duration=1 grep INFO 2026-01-11T16:03:26 +0ms service=tool.registry status=completed duration=1 edit INFO 2026-01-11T16:03:26 +0ms service=tool.registry status=completed duration=1 write INFO 2026-01-11T16:03:26 +0ms service=tool.registry status=completed duration=1 webfetch INFO 2026-01-11T16:03:26 +0ms service=tool.registry status=completed duration=1 todowrite INFO 2026-01-11T16:03:26 +0ms service=tool.registry status=completed duration=1 todoread INFO 2026-01-11T16:03:26 +0ms service=tool.registry status=completed duration=2 bash INFO 2026-01-11T16:03:26 +1ms service=tool.registry status=completed duration=2 skill INFO 2026-01-11T16:03:26 +0ms service=tool.registry status=completed duration=2 task INFO 2026-01-11T16:03:26 +2ms service=session.prompt status=completed duration=6 resolveTools INFO 2026-01-11T16:03:26 +1ms service=bus type=session.updated publishing INFO 2026-01-11T16:03:26 +1ms service=bus type=session.diff publishing INFO 2026-01-11T16:03:26 +8ms service=session.processor process INFO 2026-01-11T16:03:26 +0ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build stream INFO 2026-01-11T16:03:26 +0ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build params={"temperature":1,"topP":0.95,"topK":64,"options":{}} params INFO 2026-01-11T16:03:26 +3ms service=bus type=session.status publishing ERROR 2026-01-11T16:03:26 +62ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:03:26 +0ms service=default e=NotFoundError rejection INFO 2026-01-11T16:03:27 +547ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:27 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:27 +47ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:27 +87ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:27 +190ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:27 +116ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:28 +180ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:28 +204ms service=bus type=message.part.updated publishing ERROR 2026-01-11T16:03:28 +176ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:03:28 +0ms service=default e=NotFoundError rejection INFO 2026-01-11T16:03:28 +53ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:28 +240ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:29 +332ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:29 +251ms service=bus type=message.part.updated publishing ERROR 2026-01-11T16:03:29 +178ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:03:29 +0ms service=default e=NotFoundError rejection INFO 2026-01-11T16:03:29 +87ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:29 +420ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:30 +141ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:30 +225ms service=bus type=message.part.updated publishing ERROR 2026-01-11T16:03:30 +214ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:03:30 +0ms service=default e=NotFoundError rejection INFO 2026-01-11T16:03:30 +7ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:30 +203ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:30 +209ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:31 +284ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:31 +281ms service=bus type=message.part.updated publishing ERROR 2026-01-11T16:03:31 +31ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:03:31 +0ms service=default e=NotFoundError rejection INFO 2026-01-11T16:03:31 +252ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:31 +189ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:32 +235ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:32 +121ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:32 +213ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:32 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:32 +2ms service=bus type=file.edited publishing INFO 2026-01-11T16:03:32 +0ms service=format file=/app/input/unsigned_underflow.cpp formatting INFO 2026-01-11T16:03:32 +1ms service=format name=zig ext=.cpp checking INFO 2026-01-11T16:03:32 +0ms service=format name=uv format ext=.cpp checking INFO 2026-01-11T16:03:32 +0ms service=format name=terraform ext=.cpp checking INFO 2026-01-11T16:03:32 +0ms service=format name=standardrb ext=.cpp checking INFO 2026-01-11T16:03:32 +0ms service=format name=shfmt ext=.cpp checking INFO 2026-01-11T16:03:32 +0ms service=format name=ruff ext=.cpp checking INFO 2026-01-11T16:03:32 +1ms service=format name=rubocop ext=.cpp checking INFO 2026-01-11T16:03:32 +0ms service=format name=air ext=.cpp checking INFO 2026-01-11T16:03:32 +0ms service=format name=prettier ext=.cpp checking INFO 2026-01-11T16:03:32 +0ms service=format name=oxfmt ext=.cpp checking INFO 2026-01-11T16:03:32 +0ms service=format name=ocamlformat ext=.cpp checking INFO 2026-01-11T16:03:32 +0ms service=format name=nixfmt ext=.cpp checking INFO 2026-01-11T16:03:32 +0ms service=format name=mix ext=.cpp checking INFO 2026-01-11T16:03:32 +0ms service=format name=latexindent ext=.cpp checking INFO 2026-01-11T16:03:32 +0ms service=format name=ktlint ext=.cpp checking INFO 2026-01-11T16:03:32 +0ms service=format name=htmlbeautifier ext=.cpp checking INFO 2026-01-11T16:03:32 +0ms service=format name=gofmt ext=.cpp checking INFO 2026-01-11T16:03:32 +0ms service=format name=gleam ext=.cpp checking INFO 2026-01-11T16:03:32 +0ms service=format name=dart ext=.cpp checking INFO 2026-01-11T16:03:32 +1ms service=format name=clang-format ext=.cpp checking INFO 2026-01-11T16:03:32 +0ms service=format name=biome ext=.cpp checking INFO 2026-01-11T16:03:32 +2ms service=file.time sessionID=ses_452342d67ffe4rYhsNKyeydq4H file=/app/input/unsigned_underflow.cpp read INFO 2026-01-11T16:03:32 +1ms service=lsp file=/app/input/unsigned_underflow.cpp touching file INFO 2026-01-11T16:03:32 +5ms service=bus type=message.part.updated publishing |  Edit app/input/unsigned_underflow.cpp INFO 2026-01-11T16:03:32 +12ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:32 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:32 +1ms service=bus type=message.updated publishing The bug in `unsigned_underflow.cpp` is in the `available()` function on line 16: `return tail_ - head_;`. The problem description states this is a ring buffer, and the capacity is used modulo arithmetic for `head_` and `tail_`. The bug description confirms that if the buffer is full and then the `head_` moves past the `tail_` (meaning `tail_ < head_`), this subtraction will result in an unsigned underflow, giving a very large number, which is incorrect for the number of available slots. Wait, for a ring buffer, `tail_` is the next available slot, and `head_` is the slot of the oldest element. If `head_ == tail_`, the buffer is either empty or full. In this specific implementation, `push` just pushes to the vector and uses `capacity_` for modulo arithmetic on `tail_`. The `available()` function should calculate the number of elements *in* the buffer. If `tail_ > head_`, `tail_ - head_` is correct. If `tail_ < head_`, it means the buffer has wrapped around. The number of elements is `(capacity_ - head_) + tail_`. The formula that covers both cases is: `return (tail_ >= head_) ? (tail_ - head_) : (capacity_ - head_ + tail_);` Or more simply, using modulo arithmetic: `return (tail_ - head_ + capacity_) % capacity_;` Since the `buffer_` is an `std::vector` that keeps growing with `push_back` (line 10), this is not a *true* ring buffer where elements are overwritten or popped. The logic in `push` (lines 9-12) seems to only track the positions within a theoretical ring structure of size `capacity_`, but the actual storage `buffer_` is an ever-growing vector. This is a mix of concepts. However, the bug is clearly in `available()` as stated: "Unsigned underflow when tail < head". The intent of `available()` in this context should be to return the number of elements *stored* in the conceptual ring of size `capacity_` up to the current `tail_`. Since the elements are only added and never removed, the number of elements should be `buffer_.size()`. But the `available()` function seems to be calculating the *distance* between `head_` and `tail_` *within* the conceptual ring, which represents the number of elements. The `head_` is always 0 because there is no pop operation, so `head_` is never updated. Let's assume the intent is to calculate the number of items currently in the buffer, which is indeed `tail_ - head_` if `tail_ >= head_`. Since `head_` is never updated and is initialized to 0, `available()` should always be `tail_`, assuming the buffer is not full. The problem arises if the buffer is full and `tail_` wraps to 0, which also makes `head_ == tail_` and `isEmpty()` returns true. The current implementation of `isEmpty` seems to correctly identify full *or* empty states. Let's assume the developer intended to implement a correct ring buffer logic for `available()`. The correct formula for the number of elements in a wrapped ring buffer is: `return (tail_ - head_ + capacity_) % capacity_;` Since `head_` is always 0 in this code, `available()` is always `tail_ % capacity_` (which is just `tail_` since `tail_` is already kept under `capacity_` by the `push` operation). So, if `head_` is 0 and `tail_` is 3 (after 3 pushes and `capacity_` is 10), `tail_ - head_` = 3, which is correct. The underflow can only happen if `head_` moves. But it doesn't move. The bug is subtle. Let's look closer at the `push` function (line 10-11): ```cpp 00010| buffer_.push_back(value); 00011| tail_ = (tail_ + 1) % capacity_; ``` This is not a ring buffer. The `buffer_` grows indefinitely, while `tail_` wraps. This makes no sense. The code is only tracking the index of the *next* element to be added, but the storage is a growing vector. However, since the instruction is to fix the *subtle bug* in `available()`, and the comment points to "Unsigned underflow when tail < head," I must assume that the intention was for `head_` to be updated somewhere (e.g., in a missing `pop` function) and that the number of available elements *in the ring* is being calculated. If `head_` were 5 and `tail_` were 3, the available number would be 8, not -2 which underflows. I will apply the standard fix for calculating the number of elements in a ring buffer, which correctly handles the wrap-around case, even though `head_` is not updated in the provided code. This is the most likely intended fix for the described bug. I will replace line 16. Old line: ```cpp 00016| return tail_ - head_; // Wraps around to huge number! ``` New line: ```cpp 00016| return (tail_ - head_ + capacity_) % capacity_; ``` This formula correctly calculates the number of elements in the buffer, accounting for the wrap-around and preventing the underflow if `tail_ < head_`. Since `tail_` and `head_` are `size_t` (unsigned), the addition of `capacity_` before the modulo operation ensures the result is positive before the final modulo. INFO 2026-01-11T16:03:32 +12ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:32 +1ms service=bus type=session.status publishing INFO 2026-01-11T16:03:32 +0ms service=session.prompt step=15 sessionID=ses_452342d67ffe4rYhsNKyeydq4H loop INFO 2026-01-11T16:03:32 +28ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:32 +1ms service=session.prompt status=started resolveTools INFO 2026-01-11T16:03:32 +0ms service=tool.registry status=started invalid INFO 2026-01-11T16:03:32 +0ms service=tool.registry status=started bash INFO 2026-01-11T16:03:32 +0ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-01-11T16:03:32 +1ms service=tool.registry status=started read INFO 2026-01-11T16:03:32 +0ms service=tool.registry status=started glob INFO 2026-01-11T16:03:32 +0ms service=tool.registry status=started grep INFO 2026-01-11T16:03:32 +0ms service=tool.registry status=started edit INFO 2026-01-11T16:03:32 +0ms service=tool.registry status=started write INFO 2026-01-11T16:03:32 +0ms service=tool.registry status=started task INFO 2026-01-11T16:03:32 +0ms service=tool.registry status=started webfetch INFO 2026-01-11T16:03:32 +0ms service=tool.registry status=started todowrite INFO 2026-01-11T16:03:32 +0ms service=tool.registry status=started todoread INFO 2026-01-11T16:03:32 +0ms service=tool.registry status=started skill INFO 2026-01-11T16:03:32 +0ms service=tool.registry status=completed duration=1 invalid INFO 2026-01-11T16:03:32 +0ms service=tool.registry status=completed duration=0 read INFO 2026-01-11T16:03:32 +0ms service=tool.registry status=completed duration=0 glob INFO 2026-01-11T16:03:32 +0ms service=tool.registry status=completed duration=0 grep INFO 2026-01-11T16:03:32 +0ms service=tool.registry status=completed duration=0 edit INFO 2026-01-11T16:03:32 +0ms service=tool.registry status=completed duration=0 write INFO 2026-01-11T16:03:32 +1ms service=tool.registry status=completed duration=1 webfetch INFO 2026-01-11T16:03:32 +0ms service=tool.registry status=completed duration=1 todowrite INFO 2026-01-11T16:03:32 +0ms service=tool.registry status=completed duration=1 todoread INFO 2026-01-11T16:03:32 +0ms service=tool.registry status=completed duration=2 bash INFO 2026-01-11T16:03:32 +0ms service=tool.registry status=completed duration=1 skill INFO 2026-01-11T16:03:32 +0ms service=tool.registry status=completed duration=1 task INFO 2026-01-11T16:03:32 +2ms service=session.prompt status=completed duration=4 resolveTools INFO 2026-01-11T16:03:32 +3ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:32 +1ms service=bus type=session.updated publishing INFO 2026-01-11T16:03:32 +0ms service=bus type=session.diff publishing INFO 2026-01-11T16:03:32 +8ms service=session.processor process INFO 2026-01-11T16:03:32 +1ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build stream INFO 2026-01-11T16:03:32 +1ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build params={"temperature":1,"topP":0.95,"topK":64,"options":{}} params INFO 2026-01-11T16:03:32 +5ms service=bus type=session.status publishing ERROR 2026-01-11T16:03:32 +149ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:03:32 +0ms service=default e=NotFoundError rejection INFO 2026-01-11T16:03:33 +771ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:33 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:33 +19ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:33 +15ms service=bus type=message.part.updated publishing ERROR 2026-01-11T16:03:34 +967ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:03:34 +0ms service=default e=NotFoundError rejection INFO 2026-01-11T16:03:34 +236ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:34 +1ms service=bus type=todo.updated publishing INFO 2026-01-11T16:03:34 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:34 +2ms service=bus type=message.part.updated publishing |  Todo 4 todos INFO 2026-01-11T16:03:34 +12ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:34 +10ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:34 +1ms service=bus type=message.updated publishing I have fixed `unsigned_underflow.cpp`. I will update the todo list and move to the next file, `dangling_cstr.cpp`. INFO 2026-01-11T16:03:34 +12ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:34 +1ms service=bus type=session.status publishing INFO 2026-01-11T16:03:34 +0ms service=session.prompt step=16 sessionID=ses_452342d67ffe4rYhsNKyeydq4H loop INFO 2026-01-11T16:03:34 +61ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:34 +1ms service=session.prompt status=started resolveTools INFO 2026-01-11T16:03:34 +0ms service=tool.registry status=started invalid INFO 2026-01-11T16:03:34 +0ms service=tool.registry status=started bash INFO 2026-01-11T16:03:34 +0ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-01-11T16:03:34 +1ms service=tool.registry status=started read INFO 2026-01-11T16:03:34 +0ms service=tool.registry status=started glob INFO 2026-01-11T16:03:34 +0ms service=tool.registry status=started grep INFO 2026-01-11T16:03:34 +0ms service=tool.registry status=started edit INFO 2026-01-11T16:03:34 +0ms service=tool.registry status=started write INFO 2026-01-11T16:03:34 +0ms service=tool.registry status=started task INFO 2026-01-11T16:03:34 +1ms service=tool.registry status=started webfetch INFO 2026-01-11T16:03:34 +0ms service=tool.registry status=started todowrite INFO 2026-01-11T16:03:34 +0ms service=tool.registry status=started todoread INFO 2026-01-11T16:03:34 +0ms service=tool.registry status=started skill INFO 2026-01-11T16:03:34 +0ms service=tool.registry status=completed duration=2 invalid INFO 2026-01-11T16:03:34 +0ms service=tool.registry status=completed duration=1 read INFO 2026-01-11T16:03:34 +0ms service=tool.registry status=completed duration=1 glob INFO 2026-01-11T16:03:34 +0ms service=tool.registry status=completed duration=1 grep INFO 2026-01-11T16:03:34 +2ms service=tool.registry status=completed duration=2 edit INFO 2026-01-11T16:03:34 +0ms service=tool.registry status=completed duration=3 write INFO 2026-01-11T16:03:34 +0ms service=tool.registry status=completed duration=2 webfetch INFO 2026-01-11T16:03:34 +0ms service=tool.registry status=completed duration=2 todowrite INFO 2026-01-11T16:03:34 +1ms service=tool.registry status=completed duration=3 todoread INFO 2026-01-11T16:03:34 +2ms service=tool.registry status=completed duration=7 bash INFO 2026-01-11T16:03:34 +0ms service=tool.registry status=completed duration=5 skill INFO 2026-01-11T16:03:34 +1ms service=tool.registry status=completed duration=7 task INFO 2026-01-11T16:03:34 +1ms service=session.prompt status=completed duration=9 resolveTools INFO 2026-01-11T16:03:34 +11ms service=session.processor process INFO 2026-01-11T16:03:34 +0ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build stream INFO 2026-01-11T16:03:34 +1ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build params={"temperature":1,"topP":0.95,"topK":64,"options":{}} params INFO 2026-01-11T16:03:34 +3ms service=bus type=session.status publishing INFO 2026-01-11T16:03:34 +16ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:34 +1ms service=bus type=session.updated publishing INFO 2026-01-11T16:03:34 +1ms service=bus type=session.diff publishing INFO 2026-01-11T16:03:35 +610ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:35 +0ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:35 +15ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:35 +95ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:35 +0ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:35 +1ms service=lsp file=/app/input/dangling_cstr.cpp touching file INFO 2026-01-11T16:03:35 +0ms service=file.time sessionID=ses_452342d67ffe4rYhsNKyeydq4H file=/app/input/dangling_cstr.cpp read INFO 2026-01-11T16:03:35 +1ms service=bus type=message.part.updated publishing |  Read app/input/dangling_cstr.cpp INFO 2026-01-11T16:03:35 +27ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:35 +4ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:35 +1ms service=bus type=message.updated publishing Now I will read the content of `dangling_cstr.cpp`. INFO 2026-01-11T16:03:35 +16ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:35 +1ms service=bus type=session.status publishing INFO 2026-01-11T16:03:35 +0ms service=session.prompt step=17 sessionID=ses_452342d67ffe4rYhsNKyeydq4H loop INFO 2026-01-11T16:03:35 +54ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:35 +1ms service=bus type=session.updated publishing INFO 2026-01-11T16:03:35 +0ms service=bus type=session.diff publishing INFO 2026-01-11T16:03:35 +4ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:35 +0ms service=session.prompt status=started resolveTools INFO 2026-01-11T16:03:35 +0ms service=tool.registry status=started invalid INFO 2026-01-11T16:03:35 +0ms service=tool.registry status=started bash INFO 2026-01-11T16:03:35 +0ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-01-11T16:03:35 +1ms service=tool.registry status=started read INFO 2026-01-11T16:03:35 +0ms service=tool.registry status=started glob INFO 2026-01-11T16:03:35 +0ms service=tool.registry status=started grep INFO 2026-01-11T16:03:35 +0ms service=tool.registry status=started edit INFO 2026-01-11T16:03:35 +0ms service=tool.registry status=started write INFO 2026-01-11T16:03:35 +0ms service=tool.registry status=started task INFO 2026-01-11T16:03:35 +0ms service=tool.registry status=started webfetch INFO 2026-01-11T16:03:35 +0ms service=tool.registry status=started todowrite INFO 2026-01-11T16:03:35 +0ms service=tool.registry status=started todoread INFO 2026-01-11T16:03:35 +0ms service=tool.registry status=started skill INFO 2026-01-11T16:03:35 +0ms service=tool.registry status=completed duration=1 invalid INFO 2026-01-11T16:03:35 +0ms service=tool.registry status=completed duration=0 read INFO 2026-01-11T16:03:35 +0ms service=tool.registry status=completed duration=0 glob INFO 2026-01-11T16:03:35 +0ms service=tool.registry status=completed duration=0 grep INFO 2026-01-11T16:03:35 +0ms service=tool.registry status=completed duration=0 edit INFO 2026-01-11T16:03:35 +0ms service=tool.registry status=completed duration=0 write INFO 2026-01-11T16:03:35 +0ms service=tool.registry status=completed duration=0 webfetch INFO 2026-01-11T16:03:35 +0ms service=tool.registry status=completed duration=0 todowrite INFO 2026-01-11T16:03:35 +0ms service=tool.registry status=completed duration=0 todoread INFO 2026-01-11T16:03:35 +0ms service=tool.registry status=completed duration=1 bash INFO 2026-01-11T16:03:35 +0ms service=tool.registry status=completed duration=0 skill INFO 2026-01-11T16:03:35 +0ms service=tool.registry status=completed duration=0 task INFO 2026-01-11T16:03:35 +3ms service=session.prompt status=completed duration=4 resolveTools INFO 2026-01-11T16:03:35 +4ms service=session.processor process INFO 2026-01-11T16:03:35 +0ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build stream INFO 2026-01-11T16:03:35 +0ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build params={"temperature":1,"topP":0.95,"topK":64,"options":{}} params INFO 2026-01-11T16:03:35 +4ms service=bus type=session.status publishing ERROR 2026-01-11T16:03:35 +22ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:03:35 +0ms service=default e=NotFoundError rejection INFO 2026-01-11T16:03:36 +622ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:36 +0ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:36 +45ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:36 +74ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:36 +134ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:36 +178ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:37 +177ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:37 +169ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:37 +53ms service=bus type=message.part.updated publishing ERROR 2026-01-11T16:03:37 +170ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:03:37 +0ms service=default e=NotFoundError rejection INFO 2026-01-11T16:03:37 +39ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:37 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:37 +2ms service=bus type=file.edited publishing INFO 2026-01-11T16:03:37 +0ms service=format file=/app/input/dangling_cstr.cpp formatting INFO 2026-01-11T16:03:37 +0ms service=format name=zig ext=.cpp checking INFO 2026-01-11T16:03:37 +0ms service=format name=uv format ext=.cpp checking INFO 2026-01-11T16:03:37 +0ms service=format name=terraform ext=.cpp checking INFO 2026-01-11T16:03:37 +0ms service=format name=standardrb ext=.cpp checking INFO 2026-01-11T16:03:37 +0ms service=format name=shfmt ext=.cpp checking INFO 2026-01-11T16:03:37 +0ms service=format name=ruff ext=.cpp checking INFO 2026-01-11T16:03:37 +0ms service=format name=rubocop ext=.cpp checking INFO 2026-01-11T16:03:37 +0ms service=format name=air ext=.cpp checking INFO 2026-01-11T16:03:37 +0ms service=format name=prettier ext=.cpp checking INFO 2026-01-11T16:03:37 +0ms service=format name=oxfmt ext=.cpp checking INFO 2026-01-11T16:03:37 +0ms service=format name=ocamlformat ext=.cpp checking INFO 2026-01-11T16:03:37 +0ms service=format name=nixfmt ext=.cpp checking INFO 2026-01-11T16:03:37 +0ms service=format name=mix ext=.cpp checking INFO 2026-01-11T16:03:37 +1ms service=format name=latexindent ext=.cpp checking INFO 2026-01-11T16:03:37 +0ms service=format name=ktlint ext=.cpp checking INFO 2026-01-11T16:03:37 +0ms service=format name=htmlbeautifier ext=.cpp checking INFO 2026-01-11T16:03:37 +0ms service=format name=gofmt ext=.cpp checking INFO 2026-01-11T16:03:37 +0ms service=format name=gleam ext=.cpp checking INFO 2026-01-11T16:03:37 +0ms service=format name=dart ext=.cpp checking INFO 2026-01-11T16:03:37 +0ms service=format name=clang-format ext=.cpp checking INFO 2026-01-11T16:03:37 +0ms service=format name=biome ext=.cpp checking INFO 2026-01-11T16:03:37 +2ms service=file.time sessionID=ses_452342d67ffe4rYhsNKyeydq4H file=/app/input/dangling_cstr.cpp read INFO 2026-01-11T16:03:37 +0ms service=lsp file=/app/input/dangling_cstr.cpp touching file INFO 2026-01-11T16:03:37 +2ms service=bus type=message.part.updated publishing |  Edit app/input/dangling_cstr.cpp INFO 2026-01-11T16:03:37 +8ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:37 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:37 +0ms service=bus type=message.updated publishing The bug in `dangling_cstr.cpp` is that `formatMessage` returns a `const char*` pointer obtained from the temporary `std::string formatted` on line 10. The `formatted` string goes out of scope and is destroyed at the end of `formatMessage`, leaving the returned pointer dangling. When `std::cout` tries to print the string in `Logger::log`, it is using an invalid pointer, leading to undefined behavior (though it might appear to work in simple cases due to memory not being immediately overwritten). The fix is to return the `std::string` by value instead of a `const char*` pointer. I need to apply two edits to `formatMessage`: 1. Change the return type of the function on line 8 from `const char*` to `std::string`. 2. Change the return statement on line 10 from `return formatted.c_str();` to `return formatted;`. First edit, line 8: INFO 2026-01-11T16:03:37 +9ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:37 +0ms service=bus type=session.status publishing INFO 2026-01-11T16:03:37 +0ms service=session.prompt step=18 sessionID=ses_452342d67ffe4rYhsNKyeydq4H loop INFO 2026-01-11T16:03:37 +34ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:37 +0ms service=session.prompt status=started resolveTools INFO 2026-01-11T16:03:37 +1ms service=tool.registry status=started invalid INFO 2026-01-11T16:03:37 +0ms service=tool.registry status=started bash INFO 2026-01-11T16:03:37 +0ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-01-11T16:03:37 +0ms service=tool.registry status=started read INFO 2026-01-11T16:03:37 +0ms service=tool.registry status=started glob INFO 2026-01-11T16:03:37 +0ms service=tool.registry status=started grep INFO 2026-01-11T16:03:37 +0ms service=tool.registry status=started edit INFO 2026-01-11T16:03:37 +0ms service=tool.registry status=started write INFO 2026-01-11T16:03:37 +0ms service=tool.registry status=started task INFO 2026-01-11T16:03:37 +0ms service=tool.registry status=started webfetch INFO 2026-01-11T16:03:37 +0ms service=tool.registry status=started todowrite INFO 2026-01-11T16:03:37 +0ms service=tool.registry status=started todoread INFO 2026-01-11T16:03:37 +0ms service=tool.registry status=started skill INFO 2026-01-11T16:03:37 +0ms service=tool.registry status=completed duration=0 invalid INFO 2026-01-11T16:03:37 +0ms service=tool.registry status=completed duration=0 read INFO 2026-01-11T16:03:37 +0ms service=tool.registry status=completed duration=0 glob INFO 2026-01-11T16:03:37 +0ms service=tool.registry status=completed duration=0 grep INFO 2026-01-11T16:03:37 +1ms service=tool.registry status=completed duration=1 edit INFO 2026-01-11T16:03:37 +0ms service=tool.registry status=completed duration=1 write INFO 2026-01-11T16:03:37 +0ms service=tool.registry status=completed duration=1 webfetch INFO 2026-01-11T16:03:37 +0ms service=tool.registry status=completed duration=1 todowrite INFO 2026-01-11T16:03:37 +0ms service=tool.registry status=completed duration=1 todoread INFO 2026-01-11T16:03:37 +0ms service=tool.registry status=completed duration=1 bash INFO 2026-01-11T16:03:37 +0ms service=tool.registry status=completed duration=1 skill INFO 2026-01-11T16:03:37 +0ms service=tool.registry status=completed duration=1 task INFO 2026-01-11T16:03:37 +3ms service=session.prompt status=completed duration=5 resolveTools INFO 2026-01-11T16:03:37 +9ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:37 +1ms service=session.processor process INFO 2026-01-11T16:03:37 +0ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build stream INFO 2026-01-11T16:03:37 +1ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build params={"temperature":1,"topP":0.95,"topK":64,"options":{}} params INFO 2026-01-11T16:03:37 +3ms service=bus type=session.status publishing INFO 2026-01-11T16:03:37 +2ms service=bus type=session.updated publishing INFO 2026-01-11T16:03:37 +0ms service=bus type=session.diff publishing INFO 2026-01-11T16:03:38 +605ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:38 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:38 +143ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:38 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:38 +119ms service=bus type=message.part.updated publishing ERROR 2026-01-11T16:03:38 +55ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:03:38 +0ms service=default e=NotFoundError rejection INFO 2026-01-11T16:03:38 +33ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:38 +52ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:38 +162ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:38 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:38 +1ms service=bus type=file.edited publishing INFO 2026-01-11T16:03:38 +0ms service=format file=/app/input/dangling_cstr.cpp formatting INFO 2026-01-11T16:03:38 +0ms service=format name=zig ext=.cpp checking INFO 2026-01-11T16:03:38 +0ms service=format name=uv format ext=.cpp checking INFO 2026-01-11T16:03:38 +0ms service=format name=terraform ext=.cpp checking INFO 2026-01-11T16:03:38 +0ms service=format name=standardrb ext=.cpp checking INFO 2026-01-11T16:03:38 +0ms service=format name=shfmt ext=.cpp checking INFO 2026-01-11T16:03:38 +0ms service=format name=ruff ext=.cpp checking INFO 2026-01-11T16:03:38 +0ms service=format name=rubocop ext=.cpp checking INFO 2026-01-11T16:03:38 +0ms service=format name=air ext=.cpp checking INFO 2026-01-11T16:03:38 +0ms service=format name=prettier ext=.cpp checking INFO 2026-01-11T16:03:38 +0ms service=format name=oxfmt ext=.cpp checking INFO 2026-01-11T16:03:38 +0ms service=format name=ocamlformat ext=.cpp checking INFO 2026-01-11T16:03:38 +0ms service=format name=nixfmt ext=.cpp checking INFO 2026-01-11T16:03:38 +1ms service=format name=mix ext=.cpp checking INFO 2026-01-11T16:03:38 +0ms service=format name=latexindent ext=.cpp checking INFO 2026-01-11T16:03:38 +0ms service=format name=ktlint ext=.cpp checking INFO 2026-01-11T16:03:38 +0ms service=format name=htmlbeautifier ext=.cpp checking INFO 2026-01-11T16:03:38 +0ms service=format name=gofmt ext=.cpp checking INFO 2026-01-11T16:03:38 +0ms service=format name=gleam ext=.cpp checking INFO 2026-01-11T16:03:38 +0ms service=format name=dart ext=.cpp checking INFO 2026-01-11T16:03:38 +0ms service=format name=clang-format ext=.cpp checking INFO 2026-01-11T16:03:38 +0ms service=format name=biome ext=.cpp checking INFO 2026-01-11T16:03:38 +0ms service=file.time sessionID=ses_452342d67ffe4rYhsNKyeydq4H file=/app/input/dangling_cstr.cpp read INFO 2026-01-11T16:03:38 +1ms service=lsp file=/app/input/dangling_cstr.cpp touching file INFO 2026-01-11T16:03:38 +1ms service=bus type=message.part.updated publishing |  Edit app/input/dangling_cstr.cpp INFO 2026-01-11T16:03:38 +13ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:38 +2ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:38 +0ms service=bus type=message.updated publishing Second edit, line 10. The line number might have shifted due to the previous edit, but since I only changed the return type on the previous line (line 8), the line number for the return statement (line 10) should be the same. Old line 10: ```cpp 00010| return formatted.c_str(); // Dangling pointer! ``` New line 10: ```cpp 00010| return formatted; ``` I will apply the second edit. INFO 2026-01-11T16:03:38 +9ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:38 +0ms service=bus type=session.status publishing INFO 2026-01-11T16:03:38 +0ms service=session.prompt step=19 sessionID=ses_452342d67ffe4rYhsNKyeydq4H loop INFO 2026-01-11T16:03:38 +59ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:38 +1ms service=bus type=session.updated publishing INFO 2026-01-11T16:03:38 +0ms service=bus type=session.diff publishing INFO 2026-01-11T16:03:38 +4ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:38 +0ms service=session.prompt status=started resolveTools INFO 2026-01-11T16:03:38 +1ms service=tool.registry status=started invalid INFO 2026-01-11T16:03:38 +0ms service=tool.registry status=started bash INFO 2026-01-11T16:03:38 +0ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-01-11T16:03:38 +1ms service=tool.registry status=started read INFO 2026-01-11T16:03:38 +0ms service=tool.registry status=started glob INFO 2026-01-11T16:03:38 +0ms service=tool.registry status=started grep INFO 2026-01-11T16:03:38 +0ms service=tool.registry status=started edit INFO 2026-01-11T16:03:38 +0ms service=tool.registry status=started write INFO 2026-01-11T16:03:38 +0ms service=tool.registry status=started task INFO 2026-01-11T16:03:38 +0ms service=tool.registry status=started webfetch INFO 2026-01-11T16:03:38 +0ms service=tool.registry status=started todowrite INFO 2026-01-11T16:03:38 +0ms service=tool.registry status=started todoread INFO 2026-01-11T16:03:38 +0ms service=tool.registry status=started skill INFO 2026-01-11T16:03:38 +0ms service=tool.registry status=completed duration=1 invalid INFO 2026-01-11T16:03:38 +0ms service=tool.registry status=completed duration=0 read INFO 2026-01-11T16:03:38 +0ms service=tool.registry status=completed duration=0 glob INFO 2026-01-11T16:03:38 +0ms service=tool.registry status=completed duration=0 grep INFO 2026-01-11T16:03:38 +0ms service=tool.registry status=completed duration=0 edit INFO 2026-01-11T16:03:38 +0ms service=tool.registry status=completed duration=0 write INFO 2026-01-11T16:03:38 +0ms service=tool.registry status=completed duration=0 webfetch INFO 2026-01-11T16:03:38 +0ms service=tool.registry status=completed duration=0 todowrite INFO 2026-01-11T16:03:38 +0ms service=tool.registry status=completed duration=0 todoread INFO 2026-01-11T16:03:38 +0ms service=tool.registry status=completed duration=1 bash INFO 2026-01-11T16:03:38 +0ms service=tool.registry status=completed duration=0 skill INFO 2026-01-11T16:03:38 +0ms service=tool.registry status=completed duration=0 task INFO 2026-01-11T16:03:38 +3ms service=session.prompt status=completed duration=5 resolveTools INFO 2026-01-11T16:03:38 +11ms service=session.processor process INFO 2026-01-11T16:03:38 +0ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build stream INFO 2026-01-11T16:03:38 +1ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build params={"temperature":1,"topP":0.95,"topK":64,"options":{}} params INFO 2026-01-11T16:03:38 +3ms service=bus type=session.status publishing INFO 2026-01-11T16:03:39 +607ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:39 +1ms service=bus type=message.part.updated publishing ERROR 2026-01-11T16:03:39 +68ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:03:39 +0ms service=default e=NotFoundError rejection INFO 2026-01-11T16:03:39 +9ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:39 +43ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:39 +116ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:39 +85ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:39 +123ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:40 +113ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:40 +181ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:40 +95ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:40 +229ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:40 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:40 +2ms service=bus type=file.edited publishing INFO 2026-01-11T16:03:40 +0ms service=format file=/app/input/dangling_cstr.cpp formatting INFO 2026-01-11T16:03:40 +0ms service=format name=zig ext=.cpp checking INFO 2026-01-11T16:03:40 +0ms service=format name=uv format ext=.cpp checking INFO 2026-01-11T16:03:40 +0ms service=format name=terraform ext=.cpp checking INFO 2026-01-11T16:03:40 +0ms service=format name=standardrb ext=.cpp checking INFO 2026-01-11T16:03:40 +0ms service=format name=shfmt ext=.cpp checking INFO 2026-01-11T16:03:40 +0ms service=format name=ruff ext=.cpp checking INFO 2026-01-11T16:03:40 +0ms service=format name=rubocop ext=.cpp checking INFO 2026-01-11T16:03:40 +0ms service=format name=air ext=.cpp checking INFO 2026-01-11T16:03:40 +1ms service=format name=prettier ext=.cpp checking INFO 2026-01-11T16:03:40 +0ms service=format name=oxfmt ext=.cpp checking INFO 2026-01-11T16:03:40 +0ms service=format name=ocamlformat ext=.cpp checking INFO 2026-01-11T16:03:40 +0ms service=format name=nixfmt ext=.cpp checking INFO 2026-01-11T16:03:40 +0ms service=format name=mix ext=.cpp checking INFO 2026-01-11T16:03:40 +0ms service=format name=latexindent ext=.cpp checking INFO 2026-01-11T16:03:40 +0ms service=format name=ktlint ext=.cpp checking INFO 2026-01-11T16:03:40 +0ms service=format name=htmlbeautifier ext=.cpp checking INFO 2026-01-11T16:03:40 +0ms service=format name=gofmt ext=.cpp checking INFO 2026-01-11T16:03:40 +0ms service=format name=gleam ext=.cpp checking INFO 2026-01-11T16:03:40 +0ms service=format name=dart ext=.cpp checking INFO 2026-01-11T16:03:40 +0ms service=format name=clang-format ext=.cpp checking INFO 2026-01-11T16:03:40 +0ms service=format name=biome ext=.cpp checking INFO 2026-01-11T16:03:40 +2ms service=file.time sessionID=ses_452342d67ffe4rYhsNKyeydq4H file=/app/input/dangling_cstr.cpp read INFO 2026-01-11T16:03:40 +2ms service=lsp file=/app/input/dangling_cstr.cpp touching file INFO 2026-01-11T16:03:40 +2ms service=bus type=message.part.updated publishing |  Edit app/input/dangling_cstr.cpp ERROR 2026-01-11T16:03:40 +5ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:03:40 +0ms service=default e=NotFoundError rejection INFO 2026-01-11T16:03:40 +2ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:40 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:40 +1ms service=bus type=message.updated publishing Wait, I also need to update the `Logger::log` function to receive a `std::string` instead of a `const char*` on line 14, as `formatMessage` now returns a `std::string`. Old `Logger::log`: ```cpp 00013| void log(const std::string& msg) { 00014| const char* formatted = formatMessage(msg); 00015| std::cout << formatted << std::endl; 00016| } ``` New `Logger::log`: ```cpp 00013| void log(const std::string& msg) { 00014| std::string formatted = formatMessage(msg); 00015| std::cout << formatted << std::endl; 00016| } ``` I need to change line 14. Old line 14: ```cpp 00014| const char* formatted = formatMessage(msg); ``` New line 14: ```cpp 00014| std::string formatted = formatMessage(msg); ``` Applying the third edit to line 14. INFO 2026-01-11T16:03:40 +12ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:40 +1ms service=bus type=session.status publishing INFO 2026-01-11T16:03:40 +0ms service=session.prompt step=20 sessionID=ses_452342d67ffe4rYhsNKyeydq4H loop INFO 2026-01-11T16:03:40 +66ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:40 +0ms service=session.prompt status=started resolveTools INFO 2026-01-11T16:03:40 +2ms service=tool.registry status=started invalid INFO 2026-01-11T16:03:40 +0ms service=tool.registry status=started bash INFO 2026-01-11T16:03:40 +0ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-01-11T16:03:40 +0ms service=tool.registry status=started read INFO 2026-01-11T16:03:40 +0ms service=tool.registry status=started glob INFO 2026-01-11T16:03:40 +0ms service=tool.registry status=started grep INFO 2026-01-11T16:03:40 +0ms service=tool.registry status=started edit INFO 2026-01-11T16:03:40 +0ms service=tool.registry status=started write INFO 2026-01-11T16:03:40 +0ms service=tool.registry status=started task INFO 2026-01-11T16:03:40 +0ms service=tool.registry status=started webfetch INFO 2026-01-11T16:03:40 +0ms service=tool.registry status=started todowrite INFO 2026-01-11T16:03:40 +0ms service=tool.registry status=started todoread INFO 2026-01-11T16:03:40 +0ms service=tool.registry status=started skill INFO 2026-01-11T16:03:40 +0ms service=tool.registry status=completed duration=0 invalid INFO 2026-01-11T16:03:40 +0ms service=tool.registry status=completed duration=0 read INFO 2026-01-11T16:03:40 +0ms service=tool.registry status=completed duration=0 glob INFO 2026-01-11T16:03:40 +0ms service=tool.registry status=completed duration=0 grep INFO 2026-01-11T16:03:40 +0ms service=tool.registry status=completed duration=0 edit INFO 2026-01-11T16:03:40 +0ms service=tool.registry status=completed duration=0 write INFO 2026-01-11T16:03:40 +1ms service=tool.registry status=completed duration=1 webfetch INFO 2026-01-11T16:03:40 +0ms service=tool.registry status=completed duration=1 todowrite INFO 2026-01-11T16:03:40 +0ms service=tool.registry status=completed duration=1 todoread INFO 2026-01-11T16:03:40 +0ms service=tool.registry status=completed duration=1 bash INFO 2026-01-11T16:03:40 +0ms service=tool.registry status=completed duration=1 skill INFO 2026-01-11T16:03:40 +0ms service=tool.registry status=completed duration=1 task INFO 2026-01-11T16:03:40 +1ms service=session.prompt status=completed duration=4 resolveTools INFO 2026-01-11T16:03:40 +9ms service=session.processor process INFO 2026-01-11T16:03:40 +1ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build stream INFO 2026-01-11T16:03:40 +1ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build params={"temperature":1,"topP":0.95,"topK":64,"options":{}} params INFO 2026-01-11T16:03:40 +8ms service=bus type=session.status publishing INFO 2026-01-11T16:03:40 +11ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:40 +1ms service=bus type=session.updated publishing INFO 2026-01-11T16:03:40 +0ms service=bus type=session.diff publishing INFO 2026-01-11T16:03:41 +670ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:41 +0ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:41 +34ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:41 +44ms service=bus type=message.part.updated publishing ERROR 2026-01-11T16:03:41 +139ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:03:41 +0ms service=default e=NotFoundError rejection INFO 2026-01-11T16:03:42 +1118ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:42 +2ms service=bus type=todo.updated publishing INFO 2026-01-11T16:03:42 +5ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:42 +12ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:42 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:42 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:42 +0ms service=bus type=message.updated publishing |  Todo 3 todos I have fixed `dangling_cstr.cpp`. Now I will update the todo list and move to the next file, `init_order.cpp`. INFO 2026-01-11T16:03:42 +3ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:42 +1ms service=bus type=session.status publishing INFO 2026-01-11T16:03:42 +0ms service=session.prompt step=21 sessionID=ses_452342d67ffe4rYhsNKyeydq4H loop INFO 2026-01-11T16:03:42 +33ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:42 +1ms service=bus type=session.updated publishing INFO 2026-01-11T16:03:42 +0ms service=bus type=session.diff publishing INFO 2026-01-11T16:03:42 +10ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:42 +0ms service=session.prompt status=started resolveTools INFO 2026-01-11T16:03:42 +1ms service=tool.registry status=started invalid INFO 2026-01-11T16:03:42 +0ms service=tool.registry status=started bash INFO 2026-01-11T16:03:42 +0ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-01-11T16:03:42 +1ms service=tool.registry status=started read INFO 2026-01-11T16:03:42 +0ms service=tool.registry status=started glob INFO 2026-01-11T16:03:42 +0ms service=tool.registry status=started grep INFO 2026-01-11T16:03:42 +0ms service=tool.registry status=started edit INFO 2026-01-11T16:03:42 +0ms service=tool.registry status=started write INFO 2026-01-11T16:03:42 +0ms service=tool.registry status=started task INFO 2026-01-11T16:03:42 +0ms service=tool.registry status=started webfetch INFO 2026-01-11T16:03:42 +0ms service=tool.registry status=started todowrite INFO 2026-01-11T16:03:42 +0ms service=tool.registry status=started todoread INFO 2026-01-11T16:03:42 +0ms service=tool.registry status=started skill INFO 2026-01-11T16:03:42 +1ms service=tool.registry status=completed duration=2 invalid INFO 2026-01-11T16:03:42 +0ms service=tool.registry status=completed duration=1 read INFO 2026-01-11T16:03:42 +0ms service=tool.registry status=completed duration=1 glob INFO 2026-01-11T16:03:42 +0ms service=tool.registry status=completed duration=1 grep INFO 2026-01-11T16:03:42 +0ms service=tool.registry status=completed duration=1 edit INFO 2026-01-11T16:03:42 +0ms service=tool.registry status=completed duration=1 write INFO 2026-01-11T16:03:42 +0ms service=tool.registry status=completed duration=1 webfetch INFO 2026-01-11T16:03:42 +0ms service=tool.registry status=completed duration=1 todowrite INFO 2026-01-11T16:03:42 +0ms service=tool.registry status=completed duration=1 todoread INFO 2026-01-11T16:03:42 +0ms service=tool.registry status=completed duration=2 bash INFO 2026-01-11T16:03:42 +0ms service=tool.registry status=completed duration=1 skill INFO 2026-01-11T16:03:42 +0ms service=tool.registry status=completed duration=1 task INFO 2026-01-11T16:03:42 +4ms service=session.prompt status=completed duration=7 resolveTools INFO 2026-01-11T16:03:42 +14ms service=session.processor process INFO 2026-01-11T16:03:42 +1ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build stream INFO 2026-01-11T16:03:42 +0ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build params={"temperature":1,"topP":0.95,"topK":64,"options":{}} params INFO 2026-01-11T16:03:42 +6ms service=bus type=session.status publishing INFO 2026-01-11T16:03:43 +691ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:43 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:43 +30ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:43 +86ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:43 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:43 +1ms service=lsp file=/app/input/init_order.cpp touching file INFO 2026-01-11T16:03:43 +0ms service=file.time sessionID=ses_452342d67ffe4rYhsNKyeydq4H file=/app/input/init_order.cpp read INFO 2026-01-11T16:03:43 +1ms service=bus type=message.part.updated publishing |  Read app/input/init_order.cpp INFO 2026-01-11T16:03:43 +15ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:43 +0ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:43 +1ms service=bus type=message.updated publishing Now I will read the content of `init_order.cpp`. INFO 2026-01-11T16:03:43 +13ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:43 +0ms service=bus type=session.status publishing INFO 2026-01-11T16:03:43 +0ms service=session.prompt step=22 sessionID=ses_452342d67ffe4rYhsNKyeydq4H loop INFO 2026-01-11T16:03:43 +33ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:43 +1ms service=bus type=session.updated publishing INFO 2026-01-11T16:03:43 +0ms service=bus type=session.diff publishing INFO 2026-01-11T16:03:43 +2ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:43 +0ms service=session.prompt status=started resolveTools INFO 2026-01-11T16:03:43 +1ms service=tool.registry status=started invalid INFO 2026-01-11T16:03:43 +0ms service=tool.registry status=started bash INFO 2026-01-11T16:03:43 +0ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-01-11T16:03:43 +0ms service=tool.registry status=started read INFO 2026-01-11T16:03:43 +0ms service=tool.registry status=started glob INFO 2026-01-11T16:03:43 +0ms service=tool.registry status=started grep INFO 2026-01-11T16:03:43 +0ms service=tool.registry status=started edit INFO 2026-01-11T16:03:43 +0ms service=tool.registry status=started write INFO 2026-01-11T16:03:43 +0ms service=tool.registry status=started task INFO 2026-01-11T16:03:43 +0ms service=tool.registry status=started webfetch INFO 2026-01-11T16:03:43 +0ms service=tool.registry status=started todowrite INFO 2026-01-11T16:03:43 +0ms service=tool.registry status=started todoread INFO 2026-01-11T16:03:43 +0ms service=tool.registry status=started skill INFO 2026-01-11T16:03:43 +0ms service=tool.registry status=completed duration=0 invalid INFO 2026-01-11T16:03:43 +0ms service=tool.registry status=completed duration=0 read INFO 2026-01-11T16:03:43 +0ms service=tool.registry status=completed duration=0 glob INFO 2026-01-11T16:03:43 +0ms service=tool.registry status=completed duration=0 grep INFO 2026-01-11T16:03:43 +0ms service=tool.registry status=completed duration=0 edit INFO 2026-01-11T16:03:43 +0ms service=tool.registry status=completed duration=0 write INFO 2026-01-11T16:03:43 +0ms service=tool.registry status=completed duration=0 webfetch INFO 2026-01-11T16:03:43 +1ms service=tool.registry status=completed duration=1 todowrite INFO 2026-01-11T16:03:43 +0ms service=tool.registry status=completed duration=1 todoread INFO 2026-01-11T16:03:43 +0ms service=tool.registry status=completed duration=1 bash INFO 2026-01-11T16:03:43 +0ms service=tool.registry status=completed duration=1 skill INFO 2026-01-11T16:03:43 +0ms service=tool.registry status=completed duration=1 task INFO 2026-01-11T16:03:43 +1ms service=session.prompt status=completed duration=3 resolveTools INFO 2026-01-11T16:03:43 +6ms service=session.processor process INFO 2026-01-11T16:03:43 +0ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build stream INFO 2026-01-11T16:03:43 +0ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build params={"temperature":1,"topP":0.95,"topK":64,"options":{}} params INFO 2026-01-11T16:03:43 +5ms service=bus type=session.status publishing ERROR 2026-01-11T16:03:43 +28ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:03:43 +0ms service=default e=NotFoundError rejection INFO 2026-01-11T16:03:44 +835ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:44 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:44 +20ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:44 +15ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:44 +20ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:44 +53ms service=bus type=message.part.updated publishing INFO 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service=format name=uv format ext=.cpp checking INFO 2026-01-11T16:03:45 +0ms service=format name=terraform ext=.cpp checking INFO 2026-01-11T16:03:45 +0ms service=format name=standardrb ext=.cpp checking INFO 2026-01-11T16:03:45 +0ms service=format name=shfmt ext=.cpp checking INFO 2026-01-11T16:03:45 +0ms service=format name=ruff ext=.cpp checking INFO 2026-01-11T16:03:45 +0ms service=format name=rubocop ext=.cpp checking INFO 2026-01-11T16:03:45 +0ms service=format name=air ext=.cpp checking INFO 2026-01-11T16:03:45 +0ms service=format name=prettier ext=.cpp checking INFO 2026-01-11T16:03:45 +0ms service=format name=oxfmt ext=.cpp checking INFO 2026-01-11T16:03:45 +0ms service=format name=ocamlformat ext=.cpp checking INFO 2026-01-11T16:03:45 +0ms service=format name=nixfmt ext=.cpp checking INFO 2026-01-11T16:03:45 +0ms service=format name=mix ext=.cpp checking INFO 2026-01-11T16:03:45 +0ms service=format name=latexindent ext=.cpp checking INFO 2026-01-11T16:03:45 +0ms service=format name=ktlint ext=.cpp checking INFO 2026-01-11T16:03:45 +0ms service=format name=htmlbeautifier ext=.cpp checking INFO 2026-01-11T16:03:45 +0ms service=format name=gofmt ext=.cpp checking INFO 2026-01-11T16:03:45 +0ms service=format name=gleam ext=.cpp checking INFO 2026-01-11T16:03:45 +0ms service=format name=dart ext=.cpp checking INFO 2026-01-11T16:03:45 +0ms service=format name=clang-format ext=.cpp checking INFO 2026-01-11T16:03:45 +0ms service=format name=biome ext=.cpp checking INFO 2026-01-11T16:03:45 +1ms service=file.time sessionID=ses_452342d67ffe4rYhsNKyeydq4H file=/app/input/init_order.cpp read INFO 2026-01-11T16:03:45 +0ms service=lsp file=/app/input/init_order.cpp touching file INFO 2026-01-11T16:03:45 +13ms service=bus type=message.part.updated publishing |  Edit app/input/init_order.cpp INFO 2026-01-11T16:03:45 +24ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:45 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:45 +1ms service=bus type=message.updated publishing The bug in `init_order.cpp` is a classic member initialization order problem. Class members are initialized in the order they are *declared* in the class, not the order they appear in the *initializer list*. In `Point`, the declaration order is: 1. `double x_` (line 21) 2. `double y_` (line 22) 3. `double scale_` (line 23) In the initializer list (lines 7-9): ```cpp : scale_(scale), x_(x * scale_), y_(y * scale_) ``` When initializing `x_`, the code uses `scale_` (`x_(x * scale_)`). Since `scale_` is declared *after* `x_`, `scale_` is uninitialized when `x_` is calculated, leading to undefined behavior (using a garbage value for the scale factor). The fix is to change the *declaration order* in the private section so that `scale_` is declared first, ensuring it is initialized before it is used by `x_` and `y_`. I need to reorder lines 21, 22, and 23. Original (lines 21-23): ```cpp 00021| double x_; // Initialized first (declaration order) 00022| double y_; // Initialized second 00023| double scale_; // Initialized third, but used in x_ and y_ init! ``` Target order: `scale_`, `x_`, `y_`. I will replace lines 21-23 with the corrected declaration order. INFO 2026-01-11T16:03:45 +3ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:45 +1ms service=bus type=session.status publishing INFO 2026-01-11T16:03:45 +0ms service=session.prompt step=23 sessionID=ses_452342d67ffe4rYhsNKyeydq4H loop INFO 2026-01-11T16:03:45 +30ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:45 +2ms service=bus type=session.updated publishing INFO 2026-01-11T16:03:45 +0ms service=bus type=session.diff publishing INFO 2026-01-11T16:03:45 +2ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:45 +1ms service=session.prompt status=started resolveTools INFO 2026-01-11T16:03:45 +0ms service=tool.registry status=started invalid INFO 2026-01-11T16:03:45 +0ms service=tool.registry status=started bash INFO 2026-01-11T16:03:45 +0ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-01-11T16:03:45 +1ms service=tool.registry status=started read INFO 2026-01-11T16:03:45 +0ms service=tool.registry status=started glob INFO 2026-01-11T16:03:45 +0ms service=tool.registry status=started grep INFO 2026-01-11T16:03:45 +0ms service=tool.registry status=started edit INFO 2026-01-11T16:03:45 +0ms service=tool.registry status=started write INFO 2026-01-11T16:03:45 +0ms service=tool.registry status=started task INFO 2026-01-11T16:03:45 +0ms service=tool.registry status=started webfetch INFO 2026-01-11T16:03:45 +0ms service=tool.registry status=started todowrite INFO 2026-01-11T16:03:45 +1ms service=tool.registry status=started todoread INFO 2026-01-11T16:03:45 +0ms service=tool.registry status=started skill INFO 2026-01-11T16:03:45 +0ms service=tool.registry status=completed duration=2 invalid INFO 2026-01-11T16:03:45 +0ms service=tool.registry status=completed duration=1 read INFO 2026-01-11T16:03:45 +0ms service=tool.registry status=completed duration=1 glob INFO 2026-01-11T16:03:45 +0ms service=tool.registry status=completed duration=1 grep INFO 2026-01-11T16:03:45 +0ms service=tool.registry status=completed duration=1 edit INFO 2026-01-11T16:03:45 +0ms service=tool.registry status=completed duration=1 write INFO 2026-01-11T16:03:45 +0ms service=tool.registry status=completed duration=1 webfetch INFO 2026-01-11T16:03:45 +0ms service=tool.registry status=completed duration=1 todowrite INFO 2026-01-11T16:03:45 +0ms service=tool.registry status=completed duration=0 todoread INFO 2026-01-11T16:03:45 +0ms service=tool.registry status=completed duration=2 bash INFO 2026-01-11T16:03:45 +1ms service=tool.registry status=completed duration=1 skill INFO 2026-01-11T16:03:45 +0ms service=tool.registry status=completed duration=2 task INFO 2026-01-11T16:03:45 +1ms service=session.prompt status=completed duration=4 resolveTools INFO 2026-01-11T16:03:45 +9ms service=session.processor process INFO 2026-01-11T16:03:45 +0ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build stream INFO 2026-01-11T16:03:45 +1ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build params={"temperature":1,"topP":0.95,"topK":64,"options":{}} params INFO 2026-01-11T16:03:45 +3ms service=bus type=session.status publishing INFO 2026-01-11T16:03:46 +731ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:46 +0ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:46 +45ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:46 +53ms service=bus type=message.part.updated publishing ERROR 2026-01-11T16:03:46 +70ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:03:46 +0ms service=default e=NotFoundError rejection INFO 2026-01-11T16:03:46 +9ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:46 +64ms service=bus type=message.part.updated publishing ERROR 2026-01-11T16:03:47 +938ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:03:47 +0ms service=default e=NotFoundError rejection INFO 2026-01-11T16:03:49 +1712ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:49 +4ms service=bus type=todo.updated publishing INFO 2026-01-11T16:03:49 +3ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:49 +3ms service=bus type=message.part.updated publishing |  Todo 2 todos INFO 2026-01-11T16:03:49 +8ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:49 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:49 +0ms service=bus type=message.updated publishing I have fixed `init_order.cpp`. The declaration order is now `scale_`, `x_`, `y_`. Since the initializer list initializes `scale_` first, it will be initialized correctly before `x_` and `y_` use it. Now I will update the todo list and move to the next file, `off_by_one.cpp`. INFO 2026-01-11T16:03:49 +4ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:49 +1ms service=bus type=session.status publishing INFO 2026-01-11T16:03:49 +0ms service=session.prompt step=24 sessionID=ses_452342d67ffe4rYhsNKyeydq4H loop INFO 2026-01-11T16:03:49 +39ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:49 +1ms service=bus type=session.updated publishing INFO 2026-01-11T16:03:49 +1ms service=bus type=session.diff publishing INFO 2026-01-11T16:03:49 +1ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:49 +1ms service=session.prompt status=started resolveTools INFO 2026-01-11T16:03:49 +0ms service=tool.registry status=started invalid INFO 2026-01-11T16:03:49 +0ms service=tool.registry status=started bash INFO 2026-01-11T16:03:49 +0ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-01-11T16:03:49 +0ms service=tool.registry status=started read INFO 2026-01-11T16:03:49 +0ms service=tool.registry status=started glob INFO 2026-01-11T16:03:49 +0ms service=tool.registry status=started grep INFO 2026-01-11T16:03:49 +0ms service=tool.registry status=started edit INFO 2026-01-11T16:03:49 +0ms service=tool.registry status=started write INFO 2026-01-11T16:03:49 +0ms service=tool.registry status=started task INFO 2026-01-11T16:03:49 +0ms service=tool.registry status=started webfetch INFO 2026-01-11T16:03:49 +0ms service=tool.registry status=started todowrite INFO 2026-01-11T16:03:49 +0ms service=tool.registry status=started todoread INFO 2026-01-11T16:03:49 +0ms service=tool.registry status=started skill INFO 2026-01-11T16:03:49 +0ms service=tool.registry status=completed duration=0 invalid INFO 2026-01-11T16:03:49 +0ms service=tool.registry status=completed duration=0 read INFO 2026-01-11T16:03:49 +0ms service=tool.registry status=completed duration=0 glob INFO 2026-01-11T16:03:49 +0ms service=tool.registry status=completed duration=0 grep INFO 2026-01-11T16:03:49 +0ms service=tool.registry status=completed duration=0 edit INFO 2026-01-11T16:03:49 +0ms service=tool.registry status=completed duration=0 write INFO 2026-01-11T16:03:49 +0ms service=tool.registry status=completed duration=0 webfetch INFO 2026-01-11T16:03:49 +0ms service=tool.registry status=completed duration=0 todowrite INFO 2026-01-11T16:03:49 +0ms service=tool.registry status=completed duration=0 todoread INFO 2026-01-11T16:03:49 +0ms service=tool.registry status=completed duration=0 bash INFO 2026-01-11T16:03:49 +1ms service=tool.registry status=completed duration=1 skill INFO 2026-01-11T16:03:49 +0ms service=tool.registry status=completed duration=1 task INFO 2026-01-11T16:03:49 +0ms service=session.prompt status=completed duration=1 resolveTools INFO 2026-01-11T16:03:49 +14ms service=session.processor process INFO 2026-01-11T16:03:49 +0ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build stream INFO 2026-01-11T16:03:49 +1ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build params={"temperature":1,"topP":0.95,"topK":64,"options":{}} params INFO 2026-01-11T16:03:49 +3ms service=bus type=session.status publishing INFO 2026-01-11T16:03:50 +632ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:50 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:50 +29ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:50 +93ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:50 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:50 +2ms service=lsp file=/app/input/off_by_one.cpp touching file INFO 2026-01-11T16:03:50 +0ms service=file.time sessionID=ses_452342d67ffe4rYhsNKyeydq4H file=/app/input/off_by_one.cpp read INFO 2026-01-11T16:03:50 +1ms service=bus type=message.part.updated publishing |  Read app/input/off_by_one.cpp INFO 2026-01-11T16:03:50 +21ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:50 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:50 +1ms service=bus type=message.updated publishing Now I will read the content of `off_by_one.cpp`. INFO 2026-01-11T16:03:50 +4ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:50 +1ms service=bus type=session.status publishing INFO 2026-01-11T16:03:50 +0ms service=session.prompt step=25 sessionID=ses_452342d67ffe4rYhsNKyeydq4H loop INFO 2026-01-11T16:03:50 +42ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:50 +1ms service=bus type=session.updated publishing INFO 2026-01-11T16:03:50 +1ms service=bus type=session.diff publishing INFO 2026-01-11T16:03:50 +3ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:50 +1ms service=session.prompt status=started resolveTools INFO 2026-01-11T16:03:50 +0ms service=tool.registry status=started invalid INFO 2026-01-11T16:03:50 +0ms service=tool.registry status=started bash INFO 2026-01-11T16:03:50 +1ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-01-11T16:03:50 +0ms service=tool.registry status=started read INFO 2026-01-11T16:03:50 +0ms service=tool.registry status=started glob INFO 2026-01-11T16:03:50 +1ms service=tool.registry status=started grep INFO 2026-01-11T16:03:50 +0ms service=tool.registry status=started edit INFO 2026-01-11T16:03:50 +0ms service=tool.registry status=started write INFO 2026-01-11T16:03:50 +0ms service=tool.registry status=started task INFO 2026-01-11T16:03:50 +0ms service=tool.registry status=started webfetch INFO 2026-01-11T16:03:50 +0ms service=tool.registry status=started todowrite INFO 2026-01-11T16:03:50 +0ms service=tool.registry status=started todoread INFO 2026-01-11T16:03:50 +0ms service=tool.registry status=started skill INFO 2026-01-11T16:03:50 +0ms service=tool.registry status=completed duration=2 invalid INFO 2026-01-11T16:03:50 +0ms service=tool.registry status=completed duration=1 read INFO 2026-01-11T16:03:50 +0ms service=tool.registry status=completed duration=1 glob INFO 2026-01-11T16:03:50 +0ms service=tool.registry status=completed duration=0 grep INFO 2026-01-11T16:03:50 +0ms service=tool.registry status=completed duration=0 edit INFO 2026-01-11T16:03:50 +0ms service=tool.registry status=completed duration=0 write INFO 2026-01-11T16:03:50 +0ms service=tool.registry status=completed duration=0 webfetch INFO 2026-01-11T16:03:50 +0ms service=tool.registry status=completed duration=0 todowrite INFO 2026-01-11T16:03:50 +0ms service=tool.registry status=completed duration=0 todoread INFO 2026-01-11T16:03:50 +0ms service=tool.registry status=completed duration=2 bash INFO 2026-01-11T16:03:50 +1ms service=tool.registry status=completed duration=0 skill INFO 2026-01-11T16:03:50 +0ms service=tool.registry status=completed duration=1 task INFO 2026-01-11T16:03:50 +1ms service=session.prompt status=completed duration=4 resolveTools INFO 2026-01-11T16:03:50 +15ms service=session.processor process INFO 2026-01-11T16:03:50 +1ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build stream INFO 2026-01-11T16:03:50 +0ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build params={"temperature":1,"topP":0.95,"topK":64,"options":{}} params INFO 2026-01-11T16:03:50 +6ms service=bus type=session.status publishing ERROR 2026-01-11T16:03:50 +60ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:03:50 +0ms service=default e=NotFoundError rejection INFO 2026-01-11T16:03:51 +600ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:51 +2ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:51 +73ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:51 +62ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:51 +108ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:51 +96ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:51 +132ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:51 +171ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:51 +57ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:52 +248ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:52 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:52 +1ms service=bus type=file.edited publishing INFO 2026-01-11T16:03:52 +0ms service=format file=/app/input/off_by_one.cpp formatting INFO 2026-01-11T16:03:52 +1ms service=format name=zig ext=.cpp checking INFO 2026-01-11T16:03:52 +0ms service=format name=uv format ext=.cpp checking INFO 2026-01-11T16:03:52 +0ms service=format name=terraform ext=.cpp checking INFO 2026-01-11T16:03:52 +0ms service=format name=standardrb ext=.cpp checking INFO 2026-01-11T16:03:52 +0ms service=format name=shfmt ext=.cpp checking INFO 2026-01-11T16:03:52 +0ms service=format name=ruff ext=.cpp checking INFO 2026-01-11T16:03:52 +0ms service=format name=rubocop ext=.cpp checking INFO 2026-01-11T16:03:52 +0ms service=format name=air ext=.cpp checking INFO 2026-01-11T16:03:52 +0ms service=format name=prettier ext=.cpp checking INFO 2026-01-11T16:03:52 +0ms service=format name=oxfmt ext=.cpp checking INFO 2026-01-11T16:03:52 +0ms service=format name=ocamlformat ext=.cpp checking INFO 2026-01-11T16:03:52 +0ms service=format name=nixfmt ext=.cpp checking INFO 2026-01-11T16:03:52 +0ms service=format name=mix ext=.cpp checking INFO 2026-01-11T16:03:52 +2ms service=format name=latexindent ext=.cpp checking INFO 2026-01-11T16:03:52 +0ms service=format name=ktlint ext=.cpp checking INFO 2026-01-11T16:03:52 +0ms service=format name=htmlbeautifier ext=.cpp checking INFO 2026-01-11T16:03:52 +1ms service=format name=gofmt ext=.cpp checking INFO 2026-01-11T16:03:52 +0ms service=format name=gleam ext=.cpp checking INFO 2026-01-11T16:03:52 +0ms service=format name=dart ext=.cpp checking INFO 2026-01-11T16:03:52 +0ms service=format name=clang-format ext=.cpp checking INFO 2026-01-11T16:03:52 +0ms service=format name=biome ext=.cpp checking INFO 2026-01-11T16:03:52 +9ms service=file.time sessionID=ses_452342d67ffe4rYhsNKyeydq4H file=/app/input/off_by_one.cpp read INFO 2026-01-11T16:03:52 +1ms service=lsp file=/app/input/off_by_one.cpp touching file INFO 2026-01-11T16:03:52 +8ms service=bus type=message.part.updated publishing |  Edit app/input/off_by_one.cpp INFO 2026-01-11T16:03:52 +8ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:52 +2ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:52 +1ms service=bus type=message.updated publishing The bug in `off_by_one.cpp` is an out-of-bounds array access on line 17. The inner array size is 5 (declared on line 24 as `int data_[5][5];`), meaning valid indices are 0, 1, 2, 3, 4. The loop on line 17: ```cpp 00017| for (int i = 0; i <= 5; i++) { // Off-by-one! 00018| std::cout << data_[0][i] << " "; ``` The condition `i <= 5` causes the loop to run for `i = 5`, which accesses `data_[0][5]`, an element outside the 5-element boundary. This is an off-by-one error leading to undefined behavior and potential memory corruption. The fix is to change the loop condition to `i < 5`. I will apply the fix on line 17. INFO 2026-01-11T16:03:52 +14ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:52 +0ms service=bus type=session.status publishing INFO 2026-01-11T16:03:52 +0ms service=session.prompt step=26 sessionID=ses_452342d67ffe4rYhsNKyeydq4H loop ERROR 2026-01-11T16:03:52 +3ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:03:52 +1ms service=default e=NotFoundError rejection INFO 2026-01-11T16:03:52 +41ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:52 +1ms service=bus type=session.updated publishing INFO 2026-01-11T16:03:52 +0ms service=bus type=session.diff publishing INFO 2026-01-11T16:03:52 +5ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:52 +0ms service=session.prompt status=started resolveTools INFO 2026-01-11T16:03:52 +0ms service=tool.registry status=started invalid INFO 2026-01-11T16:03:52 +0ms service=tool.registry status=started bash INFO 2026-01-11T16:03:52 +0ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-01-11T16:03:52 +1ms service=tool.registry status=started read INFO 2026-01-11T16:03:52 +0ms service=tool.registry status=started glob INFO 2026-01-11T16:03:52 +0ms service=tool.registry status=started grep INFO 2026-01-11T16:03:52 +0ms service=tool.registry status=started edit INFO 2026-01-11T16:03:52 +0ms service=tool.registry status=started write INFO 2026-01-11T16:03:52 +0ms service=tool.registry status=started task INFO 2026-01-11T16:03:52 +0ms service=tool.registry status=started webfetch INFO 2026-01-11T16:03:52 +0ms service=tool.registry status=started todowrite INFO 2026-01-11T16:03:52 +0ms service=tool.registry status=started todoread INFO 2026-01-11T16:03:52 +0ms service=tool.registry status=started skill INFO 2026-01-11T16:03:52 +0ms service=tool.registry status=completed duration=1 invalid INFO 2026-01-11T16:03:52 +0ms service=tool.registry status=completed duration=0 read INFO 2026-01-11T16:03:52 +0ms service=tool.registry status=completed duration=0 glob INFO 2026-01-11T16:03:52 +0ms service=tool.registry status=completed duration=0 grep INFO 2026-01-11T16:03:52 +0ms service=tool.registry status=completed duration=0 edit INFO 2026-01-11T16:03:52 +0ms service=tool.registry status=completed duration=0 write INFO 2026-01-11T16:03:52 +0ms service=tool.registry status=completed duration=0 webfetch INFO 2026-01-11T16:03:52 +0ms service=tool.registry status=completed duration=0 todowrite INFO 2026-01-11T16:03:52 +0ms service=tool.registry status=completed duration=0 todoread INFO 2026-01-11T16:03:52 +0ms service=tool.registry status=completed duration=1 bash INFO 2026-01-11T16:03:52 +1ms service=tool.registry status=completed duration=1 skill INFO 2026-01-11T16:03:52 +0ms service=tool.registry status=completed duration=1 task INFO 2026-01-11T16:03:52 +2ms service=session.prompt status=completed duration=4 resolveTools INFO 2026-01-11T16:03:52 +8ms service=session.processor process INFO 2026-01-11T16:03:52 +1ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build stream INFO 2026-01-11T16:03:52 +0ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build params={"temperature":1,"topP":0.95,"topK":64,"options":{}} params INFO 2026-01-11T16:03:52 +6ms service=bus type=session.status publishing INFO 2026-01-11T16:03:52 +605ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:52 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:52 +41ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:52 +31ms service=bus type=message.part.updated publishing ERROR 2026-01-11T16:03:53 +299ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:03:53 +0ms service=default e=NotFoundError rejection INFO 2026-01-11T16:03:54 +1117ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:54 +2ms service=bus type=todo.updated publishing INFO 2026-01-11T16:03:54 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:54 +3ms service=bus type=message.part.updated publishing |  Todo 1 todos INFO 2026-01-11T16:03:54 +14ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:54 +2ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:54 +0ms service=bus type=message.updated publishing I have fixed `off_by_one.cpp`. Now I will update the todo list and move to the next file, `int_overflow.cpp`. INFO 2026-01-11T16:03:54 +10ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:54 +0ms service=bus type=session.status publishing INFO 2026-01-11T16:03:54 +0ms service=session.prompt step=27 sessionID=ses_452342d67ffe4rYhsNKyeydq4H loop INFO 2026-01-11T16:03:54 +74ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:54 +0ms service=session.prompt status=started resolveTools INFO 2026-01-11T16:03:54 +0ms service=tool.registry status=started invalid INFO 2026-01-11T16:03:54 +0ms service=tool.registry status=started bash INFO 2026-01-11T16:03:54 +0ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-01-11T16:03:54 +1ms service=tool.registry status=started read INFO 2026-01-11T16:03:54 +0ms service=tool.registry status=started glob INFO 2026-01-11T16:03:54 +0ms service=tool.registry status=started grep INFO 2026-01-11T16:03:54 +0ms service=tool.registry status=started edit INFO 2026-01-11T16:03:54 +0ms service=tool.registry status=started write INFO 2026-01-11T16:03:54 +0ms service=tool.registry status=started task INFO 2026-01-11T16:03:54 +0ms service=tool.registry status=started webfetch INFO 2026-01-11T16:03:54 +0ms service=tool.registry status=started todowrite INFO 2026-01-11T16:03:54 +0ms service=tool.registry status=started todoread INFO 2026-01-11T16:03:54 +0ms service=tool.registry status=started skill INFO 2026-01-11T16:03:54 +0ms service=tool.registry status=completed duration=1 invalid INFO 2026-01-11T16:03:54 +0ms service=tool.registry status=completed duration=0 read INFO 2026-01-11T16:03:54 +0ms service=tool.registry status=completed duration=0 glob INFO 2026-01-11T16:03:54 +0ms service=tool.registry status=completed duration=0 grep INFO 2026-01-11T16:03:54 +0ms service=tool.registry status=completed duration=0 edit INFO 2026-01-11T16:03:54 +0ms service=tool.registry status=completed duration=0 write INFO 2026-01-11T16:03:54 +0ms service=tool.registry status=completed duration=0 webfetch INFO 2026-01-11T16:03:54 +0ms service=tool.registry status=completed duration=0 todowrite INFO 2026-01-11T16:03:54 +0ms service=tool.registry status=completed duration=0 todoread INFO 2026-01-11T16:03:54 +0ms service=tool.registry status=completed duration=1 bash INFO 2026-01-11T16:03:54 +0ms service=tool.registry status=completed duration=0 skill INFO 2026-01-11T16:03:54 +0ms service=tool.registry status=completed duration=0 task INFO 2026-01-11T16:03:54 +1ms service=session.prompt status=completed duration=2 resolveTools INFO 2026-01-11T16:03:54 +11ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:54 +1ms service=bus type=session.updated publishing INFO 2026-01-11T16:03:54 +1ms service=bus type=session.diff publishing INFO 2026-01-11T16:03:54 +2ms service=session.processor process INFO 2026-01-11T16:03:54 +0ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build stream INFO 2026-01-11T16:03:54 +1ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build params={"temperature":1,"topP":0.95,"topK":64,"options":{}} params INFO 2026-01-11T16:03:54 +9ms service=bus type=session.status publishing INFO 2026-01-11T16:03:55 +669ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:55 +0ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:55 +28ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:55 +106ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:55 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:55 +1ms service=lsp file=/app/input/int_overflow.cpp touching file INFO 2026-01-11T16:03:55 +0ms service=file.time sessionID=ses_452342d67ffe4rYhsNKyeydq4H file=/app/input/int_overflow.cpp read INFO 2026-01-11T16:03:55 +1ms service=bus type=message.part.updated publishing |  Read app/input/int_overflow.cpp INFO 2026-01-11T16:03:55 +27ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:55 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:55 +1ms service=bus type=message.updated publishing Now I will read the content of `int_overflow.cpp`. INFO 2026-01-11T16:03:55 +3ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:55 +0ms service=bus type=session.status publishing INFO 2026-01-11T16:03:55 +0ms service=session.prompt step=28 sessionID=ses_452342d67ffe4rYhsNKyeydq4H loop ERROR 2026-01-11T16:03:55 +29ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:03:55 +0ms service=default e=NotFoundError rejection INFO 2026-01-11T16:03:55 +16ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:55 +0ms service=session.prompt status=started resolveTools INFO 2026-01-11T16:03:55 +0ms service=tool.registry status=started invalid INFO 2026-01-11T16:03:55 +0ms service=tool.registry status=started bash INFO 2026-01-11T16:03:55 +1ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-01-11T16:03:55 +0ms service=tool.registry status=started read INFO 2026-01-11T16:03:55 +0ms service=tool.registry status=started glob INFO 2026-01-11T16:03:55 +0ms service=tool.registry status=started grep INFO 2026-01-11T16:03:55 +0ms service=tool.registry status=started edit INFO 2026-01-11T16:03:55 +0ms service=tool.registry status=started write INFO 2026-01-11T16:03:55 +0ms service=tool.registry status=started task INFO 2026-01-11T16:03:55 +0ms service=tool.registry status=started webfetch INFO 2026-01-11T16:03:55 +0ms service=tool.registry status=started todowrite INFO 2026-01-11T16:03:55 +0ms service=tool.registry status=started todoread INFO 2026-01-11T16:03:55 +0ms service=tool.registry status=started skill INFO 2026-01-11T16:03:55 +1ms service=tool.registry status=completed duration=2 invalid INFO 2026-01-11T16:03:55 +0ms service=tool.registry status=completed duration=1 read INFO 2026-01-11T16:03:55 +0ms service=tool.registry status=completed duration=1 glob INFO 2026-01-11T16:03:55 +0ms service=tool.registry status=completed duration=1 grep INFO 2026-01-11T16:03:55 +0ms service=tool.registry status=completed duration=1 edit INFO 2026-01-11T16:03:55 +0ms service=tool.registry status=completed duration=1 write INFO 2026-01-11T16:03:55 +0ms service=tool.registry status=completed duration=1 webfetch INFO 2026-01-11T16:03:55 +0ms service=tool.registry status=completed duration=1 todowrite INFO 2026-01-11T16:03:55 +0ms service=tool.registry status=completed duration=1 todoread INFO 2026-01-11T16:03:55 +0ms service=tool.registry status=completed duration=2 bash INFO 2026-01-11T16:03:55 +0ms service=tool.registry status=completed duration=1 skill INFO 2026-01-11T16:03:55 +0ms service=tool.registry status=completed duration=1 task INFO 2026-01-11T16:03:55 +2ms service=session.prompt status=completed duration=4 resolveTools INFO 2026-01-11T16:03:55 +8ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:55 +0ms service=bus type=session.updated publishing INFO 2026-01-11T16:03:55 +1ms service=bus type=session.diff publishing INFO 2026-01-11T16:03:55 +0ms service=session.processor process INFO 2026-01-11T16:03:55 +0ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build stream INFO 2026-01-11T16:03:55 +1ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build params={"temperature":1,"topP":0.95,"topK":64,"options":{}} params INFO 2026-01-11T16:03:55 +3ms service=bus type=session.status publishing INFO 2026-01-11T16:03:55 +650ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:55 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:56 +38ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:56 +85ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:56 +134ms service=bus type=message.part.updated publishing ERROR 2026-01-11T16:03:56 +84ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:03:56 +0ms service=default e=NotFoundError rejection INFO 2026-01-11T16:03:56 +13ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:56 +188ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:56 +159ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:56 +275ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:57 +69ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:57 +207ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:57 +3ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:57 +4ms service=bus type=file.edited publishing INFO 2026-01-11T16:03:57 +0ms service=format file=/app/input/int_overflow.cpp formatting INFO 2026-01-11T16:03:57 +0ms service=format name=zig ext=.cpp checking INFO 2026-01-11T16:03:57 +0ms service=format name=uv format ext=.cpp checking INFO 2026-01-11T16:03:57 +1ms service=format name=terraform ext=.cpp checking INFO 2026-01-11T16:03:57 +0ms service=format name=standardrb ext=.cpp checking INFO 2026-01-11T16:03:57 +0ms service=format name=shfmt ext=.cpp checking INFO 2026-01-11T16:03:57 +0ms service=format name=ruff ext=.cpp checking INFO 2026-01-11T16:03:57 +0ms service=format name=rubocop ext=.cpp checking INFO 2026-01-11T16:03:57 +0ms service=format name=air ext=.cpp checking INFO 2026-01-11T16:03:57 +0ms service=format name=prettier ext=.cpp checking INFO 2026-01-11T16:03:57 +0ms service=format name=oxfmt ext=.cpp checking INFO 2026-01-11T16:03:57 +0ms service=format name=ocamlformat ext=.cpp checking INFO 2026-01-11T16:03:57 +0ms service=format name=nixfmt ext=.cpp checking INFO 2026-01-11T16:03:57 +0ms service=format name=mix ext=.cpp checking INFO 2026-01-11T16:03:57 +0ms service=format name=latexindent ext=.cpp checking INFO 2026-01-11T16:03:57 +0ms service=format name=ktlint ext=.cpp checking INFO 2026-01-11T16:03:57 +0ms service=format name=htmlbeautifier ext=.cpp checking INFO 2026-01-11T16:03:57 +0ms service=format name=gofmt ext=.cpp checking INFO 2026-01-11T16:03:57 +0ms service=format name=gleam ext=.cpp checking INFO 2026-01-11T16:03:57 +0ms service=format name=dart ext=.cpp checking INFO 2026-01-11T16:03:57 +0ms service=format name=clang-format ext=.cpp checking INFO 2026-01-11T16:03:57 +0ms service=format name=biome ext=.cpp checking INFO 2026-01-11T16:03:57 +0ms service=file.time sessionID=ses_452342d67ffe4rYhsNKyeydq4H file=/app/input/int_overflow.cpp read INFO 2026-01-11T16:03:57 +0ms service=lsp file=/app/input/int_overflow.cpp touching file INFO 2026-01-11T16:03:57 +4ms service=bus type=message.part.updated publishing |  Edit app/input/int_overflow.cpp INFO 2026-01-11T16:03:57 +20ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:57 +0ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:57 +1ms service=bus type=message.updated publishing The bug in `int_overflow.cpp` is an integer overflow in `calculateTotal` on line 8. The product of two large integers, both of type `int` (up to $\approx 2.1$ billion), can easily exceed the maximum value of a standard 32-bit `int`, which leads to undefined behavior. In this case, $100,000 \times 50,000 = 5,000,000,000$ (5 billion), which overflows a 32-bit `int`. The fix is to perform the multiplication using a wider integer type, such as `long long`, and then return the result as a `long long`. I need to apply two edits to `calculateTotal`: 1. Change the return type of the function on line 7 from `int` to `long long`. 2. Change the return value on line 8 to perform the multiplication with at least one operand cast to `long long` to promote the calculation. First edit, line 7: ```cpp 00007| long long calculateTotal(int pricePerUnit, int quantity) { ``` The arguments can remain `int` as the function needs to accept whatever is passed to it, and only the multiplication needs promotion. Applying the first edit to line 7. INFO 2026-01-11T16:03:57 +12ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:57 +0ms service=bus type=session.status publishing INFO 2026-01-11T16:03:57 +0ms service=session.prompt step=29 sessionID=ses_452342d67ffe4rYhsNKyeydq4H loop ERROR 2026-01-11T16:03:57 +60ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:03:57 +0ms service=default e=NotFoundError rejection INFO 2026-01-11T16:03:57 +1ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:57 +1ms service=bus type=session.updated publishing INFO 2026-01-11T16:03:57 +0ms service=bus type=session.diff publishing INFO 2026-01-11T16:03:57 +2ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:57 +1ms service=session.prompt status=started resolveTools INFO 2026-01-11T16:03:57 +0ms service=tool.registry status=started invalid INFO 2026-01-11T16:03:57 +0ms service=tool.registry status=started bash INFO 2026-01-11T16:03:57 +0ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-01-11T16:03:57 +0ms service=tool.registry status=started read INFO 2026-01-11T16:03:57 +0ms service=tool.registry status=started glob INFO 2026-01-11T16:03:57 +0ms service=tool.registry status=started grep INFO 2026-01-11T16:03:57 +0ms service=tool.registry status=started edit INFO 2026-01-11T16:03:57 +0ms service=tool.registry status=started write INFO 2026-01-11T16:03:57 +0ms service=tool.registry status=started task INFO 2026-01-11T16:03:57 +0ms service=tool.registry status=started webfetch INFO 2026-01-11T16:03:57 +0ms service=tool.registry status=started todowrite INFO 2026-01-11T16:03:57 +0ms service=tool.registry status=started todoread INFO 2026-01-11T16:03:57 +0ms service=tool.registry status=started skill INFO 2026-01-11T16:03:57 +0ms service=tool.registry status=completed duration=0 invalid INFO 2026-01-11T16:03:57 +0ms service=tool.registry status=completed duration=0 read INFO 2026-01-11T16:03:57 +0ms service=tool.registry status=completed duration=0 glob INFO 2026-01-11T16:03:57 +0ms service=tool.registry status=completed duration=0 grep INFO 2026-01-11T16:03:57 +0ms service=tool.registry status=completed duration=0 edit INFO 2026-01-11T16:03:57 +0ms service=tool.registry status=completed duration=0 write INFO 2026-01-11T16:03:57 +0ms service=tool.registry status=completed duration=0 webfetch INFO 2026-01-11T16:03:57 +0ms service=tool.registry status=completed duration=0 todowrite INFO 2026-01-11T16:03:57 +1ms service=tool.registry status=completed duration=1 todoread INFO 2026-01-11T16:03:57 +0ms service=tool.registry status=completed duration=1 bash INFO 2026-01-11T16:03:57 +0ms service=tool.registry status=completed duration=1 skill INFO 2026-01-11T16:03:57 +0ms service=tool.registry status=completed duration=1 task INFO 2026-01-11T16:03:57 +1ms service=session.prompt status=completed duration=2 resolveTools INFO 2026-01-11T16:03:57 +3ms service=session.processor process INFO 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ERROR 2026-01-11T16:03:58 +0ms service=default e=NotFoundError rejection INFO 2026-01-11T16:03:58 +40ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:58 +100ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:58 +190ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:58 +5ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:58 +3ms service=bus type=file.edited publishing INFO 2026-01-11T16:03:58 +0ms service=format file=/app/input/int_overflow.cpp formatting INFO 2026-01-11T16:03:58 +0ms service=format name=zig ext=.cpp checking INFO 2026-01-11T16:03:58 +0ms service=format name=uv format ext=.cpp checking INFO 2026-01-11T16:03:58 +1ms service=format name=terraform ext=.cpp checking INFO 2026-01-11T16:03:58 +0ms service=format name=standardrb ext=.cpp checking INFO 2026-01-11T16:03:58 +0ms service=format name=shfmt ext=.cpp checking INFO 2026-01-11T16:03:58 +0ms service=format name=ruff ext=.cpp checking INFO 2026-01-11T16:03:58 +0ms service=format name=rubocop ext=.cpp checking INFO 2026-01-11T16:03:58 +0ms service=format name=air ext=.cpp checking INFO 2026-01-11T16:03:58 +0ms service=format name=prettier ext=.cpp checking INFO 2026-01-11T16:03:58 +0ms service=format name=oxfmt ext=.cpp checking INFO 2026-01-11T16:03:58 +0ms service=format name=ocamlformat ext=.cpp checking INFO 2026-01-11T16:03:58 +0ms service=format name=nixfmt ext=.cpp checking INFO 2026-01-11T16:03:58 +0ms service=format name=mix ext=.cpp checking INFO 2026-01-11T16:03:58 +0ms service=format name=latexindent ext=.cpp checking INFO 2026-01-11T16:03:58 +0ms service=format name=ktlint ext=.cpp checking INFO 2026-01-11T16:03:58 +0ms service=format name=htmlbeautifier ext=.cpp checking INFO 2026-01-11T16:03:58 +0ms service=format name=gofmt ext=.cpp checking INFO 2026-01-11T16:03:58 +0ms service=format name=gleam ext=.cpp checking INFO 2026-01-11T16:03:58 +0ms service=format name=dart ext=.cpp checking INFO 2026-01-11T16:03:58 +0ms service=format name=clang-format ext=.cpp checking INFO 2026-01-11T16:03:58 +1ms service=format name=biome ext=.cpp checking INFO 2026-01-11T16:03:58 +1ms service=file.time sessionID=ses_452342d67ffe4rYhsNKyeydq4H file=/app/input/int_overflow.cpp read INFO 2026-01-11T16:03:58 +0ms service=lsp file=/app/input/int_overflow.cpp touching file INFO 2026-01-11T16:03:58 +1ms service=bus type=message.part.updated publishing |  Edit app/input/int_overflow.cpp INFO 2026-01-11T16:03:58 +9ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:58 +2ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:58 +1ms service=bus type=message.updated publishing Second edit, line 8, to ensure the multiplication is done using 64-bit arithmetic: ```cpp 00008| return (long long)pricePerUnit * quantity; // Can overflow! ``` The comment `// Can overflow!` should be removed or updated, but I will keep it simple and just fix the code. Old line 8: ```cpp 00008| return pricePerUnit * quantity; // Can overflow! ``` New line 8: ```cpp 00008| return (long long)pricePerUnit * quantity; ``` Applying the second edit to line 8. INFO 2026-01-11T16:03:58 +8ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:58 +1ms service=bus type=session.status publishing INFO 2026-01-11T16:03:58 +0ms service=session.prompt step=30 sessionID=ses_452342d67ffe4rYhsNKyeydq4H loop INFO 2026-01-11T16:03:58 +32ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:58 +1ms service=bus type=session.updated publishing INFO 2026-01-11T16:03:58 +1ms service=bus type=session.diff publishing INFO 2026-01-11T16:03:58 +2ms service=bus type=message.updated publishing INFO 2026-01-11T16:03:58 +0ms service=session.prompt status=started resolveTools INFO 2026-01-11T16:03:58 +1ms service=tool.registry status=started invalid INFO 2026-01-11T16:03:58 +0ms service=tool.registry status=started bash INFO 2026-01-11T16:03:58 +0ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-01-11T16:03:58 +0ms service=tool.registry status=started read INFO 2026-01-11T16:03:58 +0ms service=tool.registry status=started glob INFO 2026-01-11T16:03:58 +0ms service=tool.registry status=started grep INFO 2026-01-11T16:03:58 +0ms service=tool.registry status=started edit INFO 2026-01-11T16:03:58 +0ms service=tool.registry status=started write INFO 2026-01-11T16:03:58 +0ms service=tool.registry status=started task INFO 2026-01-11T16:03:58 +0ms service=tool.registry status=started webfetch INFO 2026-01-11T16:03:58 +0ms service=tool.registry status=started todowrite INFO 2026-01-11T16:03:58 +1ms service=tool.registry status=started todoread INFO 2026-01-11T16:03:58 +0ms service=tool.registry status=started skill INFO 2026-01-11T16:03:58 +0ms service=tool.registry status=completed duration=1 invalid INFO 2026-01-11T16:03:58 +0ms service=tool.registry status=completed duration=1 read INFO 2026-01-11T16:03:58 +0ms service=tool.registry status=completed duration=1 glob INFO 2026-01-11T16:03:58 +0ms service=tool.registry status=completed duration=1 grep INFO 2026-01-11T16:03:58 +0ms service=tool.registry status=completed duration=1 edit INFO 2026-01-11T16:03:58 +0ms service=tool.registry status=completed duration=1 write INFO 2026-01-11T16:03:58 +0ms service=tool.registry status=completed duration=1 webfetch INFO 2026-01-11T16:03:58 +0ms service=tool.registry status=completed duration=1 todowrite INFO 2026-01-11T16:03:58 +0ms service=tool.registry status=completed duration=0 todoread INFO 2026-01-11T16:03:58 +0ms service=tool.registry status=completed duration=1 bash INFO 2026-01-11T16:03:58 +1ms service=tool.registry status=completed duration=1 skill INFO 2026-01-11T16:03:58 +0ms service=tool.registry status=completed duration=2 task INFO 2026-01-11T16:03:58 +1ms service=session.prompt status=completed duration=4 resolveTools INFO 2026-01-11T16:03:58 +2ms service=session.processor process INFO 2026-01-11T16:03:58 +1ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build stream INFO 2026-01-11T16:03:58 +0ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build params={"temperature":1,"topP":0.95,"topK":64,"options":{}} params INFO 2026-01-11T16:03:58 +3ms service=bus type=session.status publishing ERROR 2026-01-11T16:03:59 +634ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:03:59 +1ms service=default e=NotFoundError rejection INFO 2026-01-11T16:03:59 +51ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:59 +2ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:59 +47ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:59 +94ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:59 +102ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:59 +98ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:03:59 +102ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:04:00 +242ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:04:00 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:04:00 +1ms service=bus type=file.edited publishing INFO 2026-01-11T16:04:00 +0ms service=format file=/app/input/int_overflow.cpp formatting INFO 2026-01-11T16:04:00 +1ms service=format name=zig ext=.cpp checking INFO 2026-01-11T16:04:00 +0ms service=format name=uv format ext=.cpp checking INFO 2026-01-11T16:04:00 +0ms service=format name=terraform ext=.cpp checking INFO 2026-01-11T16:04:00 +0ms service=format name=standardrb ext=.cpp checking INFO 2026-01-11T16:04:00 +0ms service=format name=shfmt ext=.cpp checking INFO 2026-01-11T16:04:00 +0ms service=format name=ruff ext=.cpp checking INFO 2026-01-11T16:04:00 +0ms service=format name=rubocop ext=.cpp checking INFO 2026-01-11T16:04:00 +0ms service=format name=air ext=.cpp checking INFO 2026-01-11T16:04:00 +0ms service=format name=prettier ext=.cpp checking INFO 2026-01-11T16:04:00 +0ms service=format name=oxfmt ext=.cpp checking INFO 2026-01-11T16:04:00 +0ms service=format name=ocamlformat ext=.cpp checking INFO 2026-01-11T16:04:00 +0ms service=format name=nixfmt ext=.cpp checking INFO 2026-01-11T16:04:00 +0ms service=format name=mix ext=.cpp checking INFO 2026-01-11T16:04:00 +0ms service=format name=latexindent ext=.cpp checking INFO 2026-01-11T16:04:00 +0ms service=format name=ktlint ext=.cpp checking INFO 2026-01-11T16:04:00 +0ms service=format name=htmlbeautifier ext=.cpp checking INFO 2026-01-11T16:04:00 +0ms service=format name=gofmt ext=.cpp checking INFO 2026-01-11T16:04:00 +0ms service=format name=gleam ext=.cpp checking INFO 2026-01-11T16:04:00 +0ms service=format name=dart ext=.cpp checking INFO 2026-01-11T16:04:00 +0ms service=format name=clang-format ext=.cpp checking INFO 2026-01-11T16:04:00 +0ms service=format name=biome ext=.cpp checking INFO 2026-01-11T16:04:00 +3ms service=file.time sessionID=ses_452342d67ffe4rYhsNKyeydq4H file=/app/input/int_overflow.cpp read INFO 2026-01-11T16:04:00 +0ms service=lsp file=/app/input/int_overflow.cpp touching file INFO 2026-01-11T16:04:00 +4ms service=bus type=message.part.updated publishing |  Edit app/input/int_overflow.cpp INFO 2026-01-11T16:04:00 +17ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:04:00 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:04:00 +1ms service=bus type=message.updated publishing Wait, I also need to update the `PriceCalculator::printOrder` function to use `long long` for `total` and also update `calculateTotal` call to reflect the change in return type. The return type of `calculateTotal` is now `long long`. The function `printOrder` (line 12) still uses `int total`. Old line 12: ```cpp 00012| int total = calculateTotal(price, qty); ``` New line 12: ```cpp 00012| long long total = calculateTotal(price, qty); ``` I need to apply the third edit to line 12. INFO 2026-01-11T16:04:00 +5ms service=bus type=message.updated publishing INFO 2026-01-11T16:04:00 +0ms service=bus type=session.status publishing INFO 2026-01-11T16:04:00 +0ms service=session.prompt step=31 sessionID=ses_452342d67ffe4rYhsNKyeydq4H loop INFO 2026-01-11T16:04:00 +99ms service=bus type=message.updated publishing INFO 2026-01-11T16:04:00 +0ms service=session.prompt status=started resolveTools INFO 2026-01-11T16:04:00 +0ms service=tool.registry status=started invalid INFO 2026-01-11T16:04:00 +0ms service=tool.registry status=started bash INFO 2026-01-11T16:04:00 +0ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-01-11T16:04:00 +1ms service=tool.registry status=started read INFO 2026-01-11T16:04:00 +0ms service=tool.registry status=started glob INFO 2026-01-11T16:04:00 +0ms service=tool.registry status=started grep INFO 2026-01-11T16:04:00 +0ms service=tool.registry status=started edit INFO 2026-01-11T16:04:00 +0ms service=tool.registry status=started write INFO 2026-01-11T16:04:00 +0ms service=tool.registry status=started task INFO 2026-01-11T16:04:00 +0ms service=tool.registry status=started webfetch INFO 2026-01-11T16:04:00 +0ms service=tool.registry status=started todowrite INFO 2026-01-11T16:04:00 +0ms service=tool.registry status=started todoread INFO 2026-01-11T16:04:00 +0ms service=tool.registry status=started skill INFO 2026-01-11T16:04:00 +0ms service=tool.registry status=completed duration=1 invalid INFO 2026-01-11T16:04:00 +0ms service=tool.registry status=completed duration=0 read INFO 2026-01-11T16:04:00 +0ms service=tool.registry status=completed duration=0 glob INFO 2026-01-11T16:04:00 +0ms service=tool.registry status=completed duration=0 grep INFO 2026-01-11T16:04:00 +0ms service=tool.registry status=completed duration=0 edit INFO 2026-01-11T16:04:00 +0ms service=tool.registry status=completed duration=0 write INFO 2026-01-11T16:04:00 +0ms service=tool.registry status=completed duration=0 webfetch INFO 2026-01-11T16:04:00 +0ms service=tool.registry status=completed duration=0 todowrite INFO 2026-01-11T16:04:00 +0ms service=tool.registry status=completed duration=0 todoread INFO 2026-01-11T16:04:00 +0ms service=tool.registry status=completed duration=1 bash INFO 2026-01-11T16:04:00 +0ms service=tool.registry status=completed duration=0 skill INFO 2026-01-11T16:04:00 +0ms service=tool.registry status=completed duration=0 task INFO 2026-01-11T16:04:00 +5ms service=session.prompt status=completed duration=6 resolveTools INFO 2026-01-11T16:04:00 +6ms service=bus type=message.updated publishing INFO 2026-01-11T16:04:00 +1ms service=bus type=session.updated publishing INFO 2026-01-11T16:04:00 +0ms service=bus type=session.diff publishing INFO 2026-01-11T16:04:00 +3ms service=session.processor process INFO 2026-01-11T16:04:00 +0ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build stream INFO 2026-01-11T16:04:00 +1ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build params={"temperature":1,"topP":0.95,"topK":64,"options":{}} params INFO 2026-01-11T16:04:00 +9ms service=bus type=session.status publishing ERROR 2026-01-11T16:04:00 +160ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:04:00 +0ms service=default e=NotFoundError rejection INFO 2026-01-11T16:04:00 +471ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:04:00 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:04:00 +63ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:04:01 +86ms service=bus type=message.part.updated publishing ERROR 2026-01-11T16:04:01 +859ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:04:01 +0ms service=default e=NotFoundError rejection INFO 2026-01-11T16:04:02 +556ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:04:02 +3ms service=bus type=todo.updated publishing INFO 2026-01-11T16:04:02 +1ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:04:02 +2ms service=bus type=message.part.updated publishing |  Todo 0 todos INFO 2026-01-11T16:04:02 +11ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:04:02 +3ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:04:02 +1ms service=bus type=message.updated publishing INFO 2026-01-11T16:04:02 +2ms service=bus type=message.updated publishing INFO 2026-01-11T16:04:02 +0ms service=bus type=session.status publishing INFO 2026-01-11T16:04:02 +0ms service=session.prompt step=32 sessionID=ses_452342d67ffe4rYhsNKyeydq4H loop I have fixed `int_overflow.cpp`. Now I will update the todo list. I have fixed all 8 files. I will now mark all todos as complete. INFO 2026-01-11T16:04:02 +63ms service=bus type=message.updated publishing INFO 2026-01-11T16:04:02 +2ms service=bus type=session.updated publishing INFO 2026-01-11T16:04:02 +1ms service=bus type=session.diff publishing INFO 2026-01-11T16:04:02 +11ms service=bus type=message.updated publishing INFO 2026-01-11T16:04:02 +0ms service=session.prompt status=started resolveTools INFO 2026-01-11T16:04:02 +1ms service=tool.registry status=started invalid INFO 2026-01-11T16:04:02 +0ms service=tool.registry status=started bash INFO 2026-01-11T16:04:02 +0ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-01-11T16:04:02 +0ms service=tool.registry status=started read INFO 2026-01-11T16:04:02 +1ms service=tool.registry status=started glob INFO 2026-01-11T16:04:02 +0ms service=tool.registry status=started grep INFO 2026-01-11T16:04:02 +0ms service=tool.registry status=started edit INFO 2026-01-11T16:04:02 +0ms service=tool.registry status=started write INFO 2026-01-11T16:04:02 +0ms service=tool.registry status=started task INFO 2026-01-11T16:04:02 +0ms service=tool.registry status=started webfetch INFO 2026-01-11T16:04:02 +0ms service=tool.registry status=started todowrite INFO 2026-01-11T16:04:02 +0ms service=tool.registry status=started todoread INFO 2026-01-11T16:04:02 +0ms service=tool.registry status=started skill INFO 2026-01-11T16:04:02 +0ms service=tool.registry status=completed duration=1 invalid INFO 2026-01-11T16:04:02 +0ms service=tool.registry status=completed duration=1 read INFO 2026-01-11T16:04:02 +0ms service=tool.registry status=completed duration=0 glob INFO 2026-01-11T16:04:02 +0ms service=tool.registry status=completed duration=0 grep INFO 2026-01-11T16:04:02 +0ms service=tool.registry status=completed duration=0 edit INFO 2026-01-11T16:04:02 +0ms service=tool.registry status=completed duration=0 write INFO 2026-01-11T16:04:02 +0ms service=tool.registry status=completed duration=0 webfetch INFO 2026-01-11T16:04:02 +0ms service=tool.registry status=completed duration=0 todowrite INFO 2026-01-11T16:04:02 +0ms service=tool.registry status=completed duration=0 todoread INFO 2026-01-11T16:04:02 +0ms service=tool.registry status=completed duration=1 bash INFO 2026-01-11T16:04:02 +0ms service=tool.registry status=completed duration=0 skill INFO 2026-01-11T16:04:02 +0ms service=tool.registry status=completed duration=0 task INFO 2026-01-11T16:04:02 +1ms service=session.prompt status=completed duration=3 resolveTools INFO 2026-01-11T16:04:02 +15ms service=session.processor process INFO 2026-01-11T16:04:02 +0ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build stream INFO 2026-01-11T16:04:02 +1ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_452342d67ffe4rYhsNKyeydq4H small=false agent=build params={"temperature":1,"topP":0.95,"topK":64,"options":{}} params INFO 2026-01-11T16:04:02 +8ms service=bus type=session.status publishing INFO 2026-01-11T16:04:03 +706ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:04:03 +2ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:04:03 +29ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:04:03 +61ms service=bus type=message.part.updated publishing ERROR 2026-01-11T16:04:03 +82ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:04:03 +1ms service=default e=NotFoundError rejection INFO 2026-01-11T16:04:03 +7ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:04:03 +107ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:04:03 +161ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:04:03 +170ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:04:04 +174ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:04:04 +227ms service=bus type=message.part.updated publishing ERROR 2026-01-11T16:04:04 +162ms service=acp-command promise={} reason=NotFoundError Unhandled rejection ERROR 2026-01-11T16:04:04 +0ms service=default e=NotFoundError rejection INFO 2026-01-11T16:04:04 +21ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:04:04 +245ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:04:04 +17ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:04:04 +2ms service=bus type=message.part.updated publishing INFO 2026-01-11T16:04:04 +0ms service=bus type=message.updated publishing I have fixed the single subtle bug in each of the following C++ files: 1. **`virtual_destructor.cpp`**: Made the base class `Plugin`'s destructor `virtual` to prevent memory leaks when deleting derived objects through a base class pointer. 2. **`reference_to_temporary.cpp`**: Changed `Config::getAppName` to return `std::string` by value instead of `const std::string&` to prevent returning a dangling reference to a temporary object. 3. **`iterator_invalidation.cpp`**: Replaced the iterator-based loop with an index-based loop using the original container size in `EventQueue::processEvents` to prevent iterator invalidation when new elements are added to the `std::vector` during iteration. 4. **`unsigned_underflow.cpp`**: Corrected the `RingBuffer::available` calculation to `(tail_ - head_ + capacity_) % capacity_` to correctly handle wrap-around and prevent unsigned underflow when `tail_ < head_`. 5. **`dangling_cstr.cpp`**: Changed `Logger::formatMessage` to return `std::string` by value instead of `const char*` to prevent returning a dangling C-string pointer from a temporary `std::string`. Updated `Logger::log` to use the new return type. 6. **`init_order.cpp`**: Reordered the member declarations in `Point` to place `scale_` before `x_` and `y_`, ensuring `scale_` is initialized before it is used in the initialization of `x_` and `y_`. 7. **`off_by_one.cpp`**: Fixed the off-by-one error in `Matrix::printTopRow` by changing the loop condition from `i <= 5` to `i < 5` to prevent an out-of-bounds array access. 8. **`int_overflow.cpp`**: Changed `PriceCalculator::calculateTotal` and its usages to use `long long` for the calculation and storage of the total price to prevent integer overflow. INFO 2026-01-11T16:04:04 +9ms service=bus type=message.updated publishing INFO 2026-01-11T16:04:04 +0ms service=bus type=session.status publishing INFO 2026-01-11T16:04:04 +0ms service=session.prompt step=33 sessionID=ses_452342d67ffe4rYhsNKyeydq4H loop INFO 2026-01-11T16:04:04 +67ms service=bus type=message.updated publishing INFO 2026-01-11T16:04:04 +3ms service=bus type=message.updated publishing INFO 2026-01-11T16:04:04 +2ms service=bus type=session.updated publishing INFO 2026-01-11T16:04:04 +1ms service=bus type=session.diff publishing INFO 2026-01-11T16:04:04 +14ms service=session.prompt sessionID=ses_452342d67ffe4rYhsNKyeydq4H exiting loop INFO 2026-01-11T16:04:04 +1ms service=session.compaction pruning INFO 2026-01-11T16:04:04 +2ms service=session.prompt sessionID=ses_452342d67ffe4rYhsNKyeydq4H cancel INFO 2026-01-11T16:04:04 +0ms service=bus type=session.status publishing INFO 2026-01-11T16:04:04 +0ms service=bus type=session.idle publishing INFO 2026-01-11T16:04:04 +8ms service=default directory=/app/input disposing instance INFO 2026-01-11T16:04:04 +0ms service=state key=/app/input waiting for state disposal to complete INFO 2026-01-11T16:04:04 +1ms service=state key=/app/input state disposal completed --- Initial command finished (exit code: 0) --- --- no_shell=true, exiting container without starting shell --- Command execution complete. Container has exited. Session has been cleaned up.