/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_20260217_150136/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: c86542df 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 170 models to OpenCode configuration Added openrouter standard provider with 342 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 2026-02-17T16:36:24 +942ms service=default version=1.1.51 args=["run","--print-logs"] opencode INFO 2026-02-17T16:36:24 +2ms service=default directory=/app/input creating instance INFO 2026-02-17T16:36:24 +1ms service=project directory=/app/input fromDirectory INFO 2026-02-17T16:36:24 +3ms service=storage index=0 running migration INFO 2026-02-17T16:36:24 +2ms service=storage index=1 running migration INFO 2026-02-17T16:36:24 +3ms service=default directory=/app/input bootstrapping INFO 2026-02-17T16:36:24 +4ms service=config path=/home/cubbi/.config/opencode/config.json loading INFO 2026-02-17T16:36:25 +64ms service=config path=/home/cubbi/.config/opencode/opencode.json loading INFO 2026-02-17T16:36:25 +1ms service=config path=/home/cubbi/.config/opencode/opencode.jsonc loading INFO 2026-02-17T16:36:25 +28ms service=bun cmd=["/opt/node/lib/node_modules/opencode-ai/node_modules/opencode-linux-x64/bin/opencode","add","@opencode-ai/plugin@1.1.51","--exact"] cwd=/home/cubbi/.config/opencode running INFO 2026-02-17T16:36:25 +690ms service=bun code=0 stdout=bun add v1.3.5 (1e86cebd) installed @opencode-ai/plugin@1.1.51 3 packages installed [667.00ms] stderr=Resolving dependencies Resolved, downloaded and extracted [12] Saved lockfile done INFO 2026-02-17T16:36:25 +1ms 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 2026-02-17T16:36:25 +32ms service=bun code=0 stdout=bun install v1.3.5 (1e86cebd) Checked 3 installs across 4 packages (no changes) [11.00ms] stderr= done INFO 2026-02-17T16:36:25 +14ms service=plugin name=CodexAuthPlugin loading internal plugin INFO 2026-02-17T16:36:25 +1ms service=plugin name=CopilotAuthPlugin loading internal plugin INFO 2026-02-17T16:36:25 +1ms service=plugin path=opencode-anthropic-auth@0.0.13 loading plugin INFO 2026-02-17T16:36:25 +7ms service=bun pkg=opencode-anthropic-auth version=0.0.13 installing package using Bun's default registry resolution INFO 2026-02-17T16:36:25 +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@0.0.13"] cwd=/home/cubbi/.cache/opencode running INFO 2026-02-17T16:36:26 +775ms service=bun code=0 stdout=bun add v1.3.5 (1e86cebd) installed opencode-anthropic-auth@0.0.13 13 packages installed [760.00ms] stderr=Resolving dependencies Resolved, downloaded and extracted [50] Saved lockfile done INFO 2026-02-17T16:36:26 +90ms service=plugin path=@gitlab/opencode-gitlab-auth@1.3.2 loading plugin INFO 2026-02-17T16:36:26 +7ms service=bun pkg=@gitlab/opencode-gitlab-auth version=1.3.2 installing package using Bun's default registry resolution INFO 2026-02-17T16:36:26 +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","@gitlab/opencode-gitlab-auth@1.3.2"] cwd=/home/cubbi/.cache/opencode running INFO 2026-02-17T16:36:27 +1201ms service=bun code=0 stdout=bun add v1.3.5 (1e86cebd) + opencode-anthropic-auth@0.0.13 installed @gitlab/opencode-gitlab-auth@1.3.2 77 packages installed [1173.00ms] stderr=Resolving dependencies Resolved, downloaded and extracted [247] Saved lockfile done INFO 2026-02-17T16:36:28 +199ms service=bus type=* subscribing INFO 2026-02-17T16:36:28 +1ms service=bus type=session.updated subscribing INFO 2026-02-17T16:36:28 +0ms service=bus type=message.updated subscribing INFO 2026-02-17T16:36:28 +0ms service=bus type=message.part.updated subscribing INFO 2026-02-17T16:36:28 +0ms service=bus type=session.updated subscribing INFO 2026-02-17T16:36:28 +0ms service=bus type=message.updated subscribing INFO 2026-02-17T16:36:28 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service=provider init INFO 2026-02-17T16:36:28 +17ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:28 +35ms service=bus type=session.updated publishing INFO 2026-02-17T16:36:28 +5ms service=bus type=session.status publishing INFO 2026-02-17T16:36:28 +0ms service=session.prompt step=0 sessionID=ses_3938a2840ffex8y7hyYVNt3JgI loop INFO 2026-02-17T16:36:28 +51ms service=provider providerID=openrouter found INFO 2026-02-17T16:36:28 +1ms service=provider providerID=opencode found INFO 2026-02-17T16:36:28 +0ms service=provider providerID=litellm found INFO 2026-02-17T16:36:28 +0ms service=provider status=completed duration=182 state INFO 2026-02-17T16:36:28 +10ms service=llm providerID=openrouter modelID=anthropic/claude-haiku-4.5 sessionID=ses_3938a2840ffex8y7hyYVNt3JgI small=true agent=title mode=primary stream INFO 2026-02-17T16:36:28 +7ms service=provider status=started providerID=openrouter getSDK INFO 2026-02-17T16:36:28 +1ms service=provider providerID=openrouter pkg=@openrouter/ai-sdk-provider using bundled provider INFO 2026-02-17T16:36:28 +0ms service=provider status=completed duration=1 providerID=openrouter getSDK INFO 2026-02-17T16:36:28 +0ms service=bus type=message.updated publishing INFO 2026-02-17T16:36:28 +5ms service=session.prompt status=started resolveTools  > build �� google/gemini-2.5-flash-preview-09-2025  INFO 2026-02-17T16:36:28 +35ms service=tool.registry status=started invalid INFO 2026-02-17T16:36:28 +0ms service=tool.registry status=started question INFO 2026-02-17T16:36:28 +0ms service=tool.registry status=started bash INFO 2026-02-17T16:36:28 +1ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-02-17T16:36:28 +3ms service=tool.registry status=started read INFO 2026-02-17T16:36:28 +0ms service=tool.registry status=started glob INFO 2026-02-17T16:36:28 +0ms service=tool.registry status=started grep INFO 2026-02-17T16:36:28 +0ms service=tool.registry status=started edit INFO 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service=tool.registry status=completed duration=2 webfetch INFO 2026-02-17T16:36:28 +0ms service=tool.registry status=completed duration=2 todowrite INFO 2026-02-17T16:36:28 +1ms service=tool.registry status=completed duration=8 bash INFO 2026-02-17T16:36:28 +1ms service=tool.registry status=completed duration=4 skill INFO 2026-02-17T16:36:28 +0ms service=permission permission=task pattern=general 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status=completed duration=6 task INFO 2026-02-17T16:36:28 +13ms service=session.prompt status=completed duration=58 resolveTools INFO 2026-02-17T16:36:28 +22ms service=bus type=message.updated publishing INFO 2026-02-17T16:36:28 +2ms service=llm providerID=openrouter modelID=anthropic/claude-haiku-4.5 sessionID=ses_3938a2840ffex8y7hyYVNt3JgI small=true agent=title mode=primary stream INFO 2026-02-17T16:36:28 +1ms service=bus type=session.updated publishing INFO 2026-02-17T16:36:28 +4ms service=bus type=session.diff publishing INFO 2026-02-17T16:36:28 +7ms service=session.processor process INFO 2026-02-17T16:36:28 +1ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_3938a2840ffex8y7hyYVNt3JgI small=false agent=build mode=primary stream INFO 2026-02-17T16:36:28 +1ms service=provider status=started providerID=openrouter getSDK INFO 2026-02-17T16:36:28 +0ms service=provider status=completed duration=0 providerID=openrouter getSDK INFO 2026-02-17T16:36:28 +5ms service=bus type=session.status publishing INFO 2026-02-17T16:36:29 +780ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:29 +11ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:29 +314ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:29 +286ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:30 +109ms service=session.summary title=C++ bug hunt: fix 8 subtle errors title INFO 2026-02-17T16:36:30 +2ms service=bus type=message.updated publishing INFO 2026-02-17T16:36:30 +7ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:30 +3ms service=bus type=session.updated publishing INFO 2026-02-17T16:36:30 +52ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:30 +225ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:30 +215ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:30 +213ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:30 +8ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:30 +6ms service=permission permission=glob pattern=*.cpp 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evaluate INFO 2026-02-17T16:36:30 +0ms service=permission permission=glob pattern=*.cpp action={"permission":"*","pattern":"*","action":"allow"} evaluated INFO 2026-02-17T16:36:30 +0ms service=permission permission=read pattern=/app/input/virtual_destructor.cpp ruleset=[{"permission":"*","pattern":"*","action":"allow"},{"permission":"doom_loop","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","pattern":"*","action":"deny"},{"permission":"plan_enter","pattern":"*","action":"deny"},{"permission":"plan_exit","pattern":"*","action":"deny"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","pattern":"*","action":"allow"},{"permission":"plan_enter","pattern":"*","action":"allow"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","pattern":"*","action":"deny"},{"permission":"plan_enter","pattern":"*","action":"deny"},{"permission":"plan_exit","pattern":"*","action":"deny"}] evaluate INFO 2026-02-17T16:36:30 +0ms service=permission permission=read pattern=/app/input/virtual_destructor.cpp action={"permission":"read","pattern":"*","action":"allow"} evaluated INFO 2026-02-17T16:36:30 +8ms service=lsp file=/app/input/virtual_destructor.cpp touching file INFO 2026-02-17T16:36:30 +1ms service=file.time sessionID=ses_3938a2840ffex8y7hyYVNt3JgI file=/app/input/virtual_destructor.cpp read INFO 2026-02-17T16:36:30 +2ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:30 +1ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:30 +9ms service=bus type=message.part.updated publishing ��� Read virtual_destructor.cpp INFO 2026-02-17T16:36:30 +2ms service=lsp.server downloading clangd from GitHub releases INFO 2026-02-17T16:36:30 +22ms service=bus type=message.part.updated publishing ��� Glob "*.cpp" 8 matches INFO 2026-02-17T16:36:30 +90ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:30 +1ms service=permission permission=read pattern=/app/input/reference_to_temporary.cpp 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evaluate INFO 2026-02-17T16:36:30 +6ms service=permission permission=read pattern=/app/input/reference_to_temporary.cpp action={"permission":"read","pattern":"*","action":"allow"} evaluated INFO 2026-02-17T16:36:30 +2ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:30 +13ms service=permission permission=read pattern=/app/input/iterator_invalidation.cpp ruleset=[{"permission":"*","pattern":"*","action":"allow"},{"permission":"doom_loop","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","pattern":"*","action":"deny"},{"permission":"plan_enter","pattern":"*","action":"deny"},{"permission":"plan_exit","pattern":"*","action":"deny"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","pattern":"*","action":"allow"},{"permission":"plan_enter","pattern":"*","action":"allow"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","pattern":"*","action":"deny"},{"permission":"plan_enter","pattern":"*","action":"deny"},{"permission":"plan_exit","pattern":"*","action":"deny"}] evaluate INFO 2026-02-17T16:36:30 +1ms service=permission permission=read pattern=/app/input/iterator_invalidation.cpp action={"permission":"read","pattern":"*","action":"allow"} evaluated INFO 2026-02-17T16:36:30 +0ms service=permission permission=read pattern=/app/input/unsigned_underflow.cpp ruleset=[{"permission":"*","pattern":"*","action":"allow"},{"permission":"doom_loop","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","pattern":"*","action":"deny"},{"permission":"plan_enter","pattern":"*","action":"deny"},{"permission":"plan_exit","pattern":"*","action":"deny"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","pattern":"*","action":"allow"},{"permission":"plan_enter","pattern":"*","action":"allow"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","pattern":"*","action":"deny"},{"permission":"plan_enter","pattern":"*","action":"deny"},{"permission":"plan_exit","pattern":"*","action":"deny"}] evaluate INFO 2026-02-17T16:36:30 +0ms service=permission permission=read pattern=/app/input/unsigned_underflow.cpp action={"permission":"read","pattern":"*","action":"allow"} evaluated INFO 2026-02-17T16:36:31 +6ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:31 +7ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:31 +11ms service=lsp file=/app/input/unsigned_underflow.cpp touching file INFO 2026-02-17T16:36:31 +0ms service=file.time sessionID=ses_3938a2840ffex8y7hyYVNt3JgI file=/app/input/unsigned_underflow.cpp read INFO 2026-02-17T16:36:31 +2ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:31 +10ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:31 +4ms service=lsp file=/app/input/iterator_invalidation.cpp touching file INFO 2026-02-17T16:36:31 +0ms service=file.time sessionID=ses_3938a2840ffex8y7hyYVNt3JgI file=/app/input/iterator_invalidation.cpp read INFO 2026-02-17T16:36:31 +1ms service=lsp file=/app/input/reference_to_temporary.cpp touching file INFO 2026-02-17T16:36:31 +0ms service=file.time sessionID=ses_3938a2840ffex8y7hyYVNt3JgI file=/app/input/reference_to_temporary.cpp read INFO 2026-02-17T16:36:31 +26ms service=bus type=message.part.updated publishing ��� Read unsigned_underflow.cpp INFO 2026-02-17T16:36:31 +3ms service=bus type=message.part.updated publishing ��� Read iterator_invalidation.cpp INFO 2026-02-17T16:36:31 +3ms service=bus type=message.part.updated publishing ��� Read reference_to_temporary.cpp INFO 2026-02-17T16:36:31 +148ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:31 +5ms service=permission permission=read pattern=/app/input/dangling_cstr.cpp ruleset=[{"permission":"*","pattern":"*","action":"allow"},{"permission":"doom_loop","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","pattern":"*","action":"deny"},{"permission":"plan_enter","pattern":"*","action":"deny"},{"permission":"plan_exit","pattern":"*","action":"deny"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","pattern":"*","action":"allow"},{"permission":"plan_enter","pattern":"*","action":"allow"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","pattern":"*","action":"deny"},{"permission":"plan_enter","pattern":"*","action":"deny"},{"permission":"plan_exit","pattern":"*","action":"deny"}] evaluate INFO 2026-02-17T16:36:31 +0ms service=permission permission=read pattern=/app/input/dangling_cstr.cpp action={"permission":"read","pattern":"*","action":"allow"} evaluated INFO 2026-02-17T16:36:31 +14ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:31 +8ms service=permission permission=read pattern=/app/input/init_order.cpp ruleset=[{"permission":"*","pattern":"*","action":"allow"},{"permission":"doom_loop","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","pattern":"*","action":"deny"},{"permission":"plan_enter","pattern":"*","action":"deny"},{"permission":"plan_exit","pattern":"*","action":"deny"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","pattern":"*","action":"allow"},{"permission":"plan_enter","pattern":"*","action":"allow"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","pattern":"*","action":"deny"},{"permission":"plan_enter","pattern":"*","action":"deny"},{"permission":"plan_exit","pattern":"*","action":"deny"}] evaluate INFO 2026-02-17T16:36:31 +5ms service=permission permission=read pattern=/app/input/init_order.cpp action={"permission":"read","pattern":"*","action":"allow"} evaluated INFO 2026-02-17T16:36:31 +20ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:31 +4ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:31 +9ms service=permission permission=read pattern=/app/input/off_by_one.cpp ruleset=[{"permission":"*","pattern":"*","action":"allow"},{"permission":"doom_loop","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","pattern":"*","action":"deny"},{"permission":"plan_enter","pattern":"*","action":"deny"},{"permission":"plan_exit","pattern":"*","action":"deny"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","pattern":"*","action":"allow"},{"permission":"plan_enter","pattern":"*","action":"allow"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","pattern":"*","action":"deny"},{"permission":"plan_enter","pattern":"*","action":"deny"},{"permission":"plan_exit","pattern":"*","action":"deny"}] evaluate INFO 2026-02-17T16:36:31 +0ms service=permission permission=read pattern=/app/input/off_by_one.cpp action={"permission":"read","pattern":"*","action":"allow"} evaluated INFO 2026-02-17T16:36:31 +1ms service=lsp file=/app/input/init_order.cpp touching file INFO 2026-02-17T16:36:31 +1ms service=file.time sessionID=ses_3938a2840ffex8y7hyYVNt3JgI file=/app/input/init_order.cpp read INFO 2026-02-17T16:36:31 +1ms service=lsp file=/app/input/dangling_cstr.cpp touching file INFO 2026-02-17T16:36:31 +0ms service=file.time sessionID=ses_3938a2840ffex8y7hyYVNt3JgI file=/app/input/dangling_cstr.cpp read INFO 2026-02-17T16:36:31 +2ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:31 +1ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:31 +6ms service=permission permission=read pattern=/app/input/int_overflow.cpp ruleset=[{"permission":"*","pattern":"*","action":"allow"},{"permission":"doom_loop","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","pattern":"*","action":"deny"},{"permission":"plan_enter","pattern":"*","action":"deny"},{"permission":"plan_exit","pattern":"*","action":"deny"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","pattern":"*","action":"allow"},{"permission":"plan_enter","pattern":"*","action":"allow"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","pattern":"*","action":"deny"},{"permission":"plan_enter","pattern":"*","action":"deny"},{"permission":"plan_exit","pattern":"*","action":"deny"}] evaluate INFO 2026-02-17T16:36:31 +0ms service=permission permission=read pattern=/app/input/int_overflow.cpp action={"permission":"read","pattern":"*","action":"allow"} evaluated INFO 2026-02-17T16:36:31 +15ms service=lsp file=/app/input/off_by_one.cpp touching file INFO 2026-02-17T16:36:31 +1ms service=file.time sessionID=ses_3938a2840ffex8y7hyYVNt3JgI file=/app/input/off_by_one.cpp read INFO 2026-02-17T16:36:31 +11ms service=bus type=message.part.updated publishing ��� Read init_order.cpp INFO 2026-02-17T16:36:31 +3ms service=bus type=message.part.updated publishing ��� Read dangling_cstr.cpp INFO 2026-02-17T16:36:31 +2ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:31 +2ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:31 +6ms service=lsp file=/app/input/int_overflow.cpp touching file INFO 2026-02-17T16:36:31 +1ms service=file.time sessionID=ses_3938a2840ffex8y7hyYVNt3JgI file=/app/input/int_overflow.cpp read INFO 2026-02-17T16:36:31 +5ms service=bus type=message.part.updated publishing  This is a complex, multi-step task involving 8 independent C++ files, each with a subtle bug. I will address each file sequentially, following the **Understand -> Plan -> Implement -> Verify** workflow for each. I will use `g++` for compilation and the `bash` tool to run the compiled executables with Address Sanitizer (ASan) and Undefined Behavior Sanitizer (UBSan) enabled, as this is the best way to satisfy the requirement to check for: 1. Compilation without warnings/errors (`-Wall -Wextra -Werror`). 2. Sanitizer checks (ASan/UBSan). 3. Correct expected output. First, I need to list the files and their contents to understand the existing code and the nature of the bug. I will use `default_api:glob` to list all `.cpp` files and then `default_api:read` to read their contents. **Plan for the first step:** 1. Use `glob` to find all `.cpp` files. 2. Use `read` to get the content of all found files. After this, I'll start with `virtual_destructor.cpp`.  INFO 2026-02-17T16:36:31 +5ms service=bus type=message.part.updated publishing ��� Read off_by_one.cpp INFO 2026-02-17T16:36:31 +9ms service=bus type=message.part.updated publishing ��� Read int_overflow.cpp INFO 2026-02-17T16:36:31 +21ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:31 +3ms service=bus type=message.updated publishing INFO 2026-02-17T16:36:31 +22ms service=bus type=message.updated publishing INFO 2026-02-17T16:36:31 +2ms service=bus type=session.status publishing INFO 2026-02-17T16:36:31 +0ms service=session.prompt step=1 sessionID=ses_3938a2840ffex8y7hyYVNt3JgI loop INFO 2026-02-17T16:36:31 +13ms service=bus type=message.updated publishing INFO 2026-02-17T16:36:31 +2ms service=bus type=session.updated publishing INFO 2026-02-17T16:36:31 +2ms service=bus type=session.diff publishing INFO 2026-02-17T16:36:31 +5ms service=bus type=message.updated publishing INFO 2026-02-17T16:36:31 +6ms service=session.prompt status=started resolveTools INFO 2026-02-17T16:36:31 +4ms service=tool.registry status=started invalid INFO 2026-02-17T16:36:31 +1ms service=tool.registry status=started question INFO 2026-02-17T16:36:31 +0ms service=tool.registry status=started bash INFO 2026-02-17T16:36:31 +0ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-02-17T16:36:31 +1ms service=tool.registry status=started read INFO 2026-02-17T16:36:31 +5ms service=tool.registry status=started glob INFO 2026-02-17T16:36:31 +1ms service=tool.registry status=started grep INFO 2026-02-17T16:36:31 +1ms service=tool.registry status=started edit INFO 2026-02-17T16:36:31 +0ms service=tool.registry status=started write INFO 2026-02-17T16:36:31 +0ms service=tool.registry status=started task INFO 2026-02-17T16:36:31 +0ms service=tool.registry status=started webfetch INFO 2026-02-17T16:36:31 +0ms service=tool.registry status=started todowrite INFO 2026-02-17T16:36:31 +0ms service=tool.registry status=started skill INFO 2026-02-17T16:36:31 +1ms service=tool.registry status=completed duration=10 invalid INFO 2026-02-17T16:36:31 +0ms service=tool.registry status=completed duration=9 question INFO 2026-02-17T16:36:31 +0ms service=tool.registry status=completed duration=8 read INFO 2026-02-17T16:36:31 +0ms service=tool.registry status=completed duration=3 glob INFO 2026-02-17T16:36:31 +0ms service=tool.registry status=completed duration=2 grep INFO 2026-02-17T16:36:31 +0ms service=tool.registry status=completed duration=1 edit INFO 2026-02-17T16:36:31 +0ms service=tool.registry status=completed duration=1 write INFO 2026-02-17T16:36:31 +0ms service=tool.registry status=completed duration=1 webfetch INFO 2026-02-17T16:36:31 +0ms service=tool.registry status=completed duration=1 todowrite INFO 2026-02-17T16:36:31 +0ms service=tool.registry status=completed duration=9 bash INFO 2026-02-17T16:36:31 +7ms service=tool.registry status=completed duration=8 skill INFO 2026-02-17T16:36:31 +0ms service=permission permission=task pattern=general ruleset=[{"permission":"*","action":"allow","pattern":"*"},{"permission":"doom_loop","action":"ask","pattern":"*"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","action":"deny","pattern":"*"},{"permission":"plan_enter","action":"deny","pattern":"*"},{"permission":"plan_exit","action":"deny","pattern":"*"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","action":"allow","pattern":"*"},{"permission":"plan_enter","action":"allow","pattern":"*"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"}] evaluate INFO 2026-02-17T16:36:31 +0ms service=permission permission=task pattern=explore ruleset=[{"permission":"*","action":"allow","pattern":"*"},{"permission":"doom_loop","action":"ask","pattern":"*"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","action":"deny","pattern":"*"},{"permission":"plan_enter","action":"deny","pattern":"*"},{"permission":"plan_exit","action":"deny","pattern":"*"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","action":"allow","pattern":"*"},{"permission":"plan_enter","action":"allow","pattern":"*"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"}] evaluate INFO 2026-02-17T16:36:31 +6ms service=tool.registry status=completed duration=14 task INFO 2026-02-17T16:36:31 +29ms service=session.prompt status=completed duration=56 resolveTools INFO 2026-02-17T16:36:31 +16ms service=session.processor process INFO 2026-02-17T16:36:31 +0ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_3938a2840ffex8y7hyYVNt3JgI small=false agent=build mode=primary stream INFO 2026-02-17T16:36:31 +42ms service=bus type=session.status publishing INFO 2026-02-17T16:36:32 +1150ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:32 +5ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:32 +1ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:32 +2ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:32 +1ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:32 +5ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:32 +1ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:32 +0ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:32 +199ms service=bus type=message.part.updated publishing ERROR 2026-02-17T16:36:33 +218ms service=lsp.server error=Failed with exit code 1 Failed to extract clangd archive INFO 2026-02-17T16:36:33 +5ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:33 +227ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:33 +227ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:33 +133ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:33 +15ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:33 +46ms service=permission permission=edit pattern=app/input/virtual_destructor.cpp ruleset=[{"permission":"*","pattern":"*","action":"allow"},{"permission":"doom_loop","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","pattern":"*","action":"deny"},{"permission":"plan_enter","pattern":"*","action":"deny"},{"permission":"plan_exit","pattern":"*","action":"deny"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","pattern":"*","action":"allow"},{"permission":"plan_enter","pattern":"*","action":"allow"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","pattern":"*","action":"deny"},{"permission":"plan_enter","pattern":"*","action":"deny"},{"permission":"plan_exit","pattern":"*","action":"deny"}] evaluate INFO 2026-02-17T16:36:33 +0ms service=permission permission=edit pattern=app/input/virtual_destructor.cpp action={"permission":"*","pattern":"*","action":"allow"} evaluated INFO 2026-02-17T16:36:33 +2ms service=bus type=file.edited publishing INFO 2026-02-17T16:36:33 +3ms service=format file=/app/input/virtual_destructor.cpp formatting INFO 2026-02-17T16:36:33 +14ms service=format name=zig ext=.cpp checking INFO 2026-02-17T16:36:33 +0ms service=format name=uv ext=.cpp checking INFO 2026-02-17T16:36:33 +0ms service=format name=terraform ext=.cpp checking INFO 2026-02-17T16:36:33 +0ms service=format name=standardrb ext=.cpp checking INFO 2026-02-17T16:36:33 +1ms service=format name=shfmt ext=.cpp checking INFO 2026-02-17T16:36:33 +0ms service=format name=rustfmt ext=.cpp checking INFO 2026-02-17T16:36:33 +0ms service=format name=ruff ext=.cpp checking INFO 2026-02-17T16:36:33 +0ms service=format name=rubocop ext=.cpp checking INFO 2026-02-17T16:36:33 +0ms service=format name=air ext=.cpp checking INFO 2026-02-17T16:36:33 +0ms service=format name=prettier ext=.cpp checking INFO 2026-02-17T16:36:33 +0ms service=format name=pint ext=.cpp checking INFO 2026-02-17T16:36:33 +0ms service=format name=oxfmt ext=.cpp checking INFO 2026-02-17T16:36:33 +0ms service=format name=ormolu ext=.cpp checking INFO 2026-02-17T16:36:33 +0ms service=format name=ocamlformat ext=.cpp checking INFO 2026-02-17T16:36:33 +0ms service=format name=nixfmt ext=.cpp checking INFO 2026-02-17T16:36:33 +0ms service=format name=mix ext=.cpp checking INFO 2026-02-17T16:36:33 +0ms service=format name=latexindent ext=.cpp checking INFO 2026-02-17T16:36:33 +0ms service=format name=ktlint ext=.cpp checking INFO 2026-02-17T16:36:33 +0ms service=format name=htmlbeautifier ext=.cpp checking INFO 2026-02-17T16:36:33 +0ms service=format name=gofmt ext=.cpp checking INFO 2026-02-17T16:36:33 +0ms service=format name=gleam ext=.cpp checking INFO 2026-02-17T16:36:33 +0ms service=format name=dart ext=.cpp checking INFO 2026-02-17T16:36:33 +0ms service=format name=clang-format ext=.cpp checking INFO 2026-02-17T16:36:33 +48ms service=bus type=message.part.updated publishing  I have the contents of all 8 files. I will now fix them one by one, verifying each before moving to the next. I will use a consistent verification script: ```bash g++ -std=c++17 -Wall -Wextra -Werror -fsanitize=address,undefined -o .cpp ./ ``` --- ## 1. `virtual_destructor.cpp` - Plugin system with memory management **Understand:** The code defines a base class `Plugin` and a derived class `ImagePlugin`. Objects are created via a base class pointer (`new ImagePlugin()`) and deleted via a base class pointer (`delete p;`). The base class destructor `~Plugin()` is **not** virtual. This is the classic bug: when deleting a derived class object through a base class pointer, the derived class destructor (`~ImagePlugin()`) is not called, leading to a memory leak (`imageData_` is not freed) and potential Undefined Behavior/ASan failure due to improper deletion of allocated resources. **Plan:** 1. Make the base class destructor `~Plugin()` virtual. 2. Compile with sanitizers and check output. **Implementation (`virtual_destructor.cpp`):** Change line 12 from `~Plugin()` to `virtual ~Plugin()`.  INFO 2026-02-17T16:36:33 +4ms service=format name=biome ext=.cpp checking INFO 2026-02-17T16:36:33 +0ms service=bus type=file.watcher.updated publishing INFO 2026-02-17T16:36:33 +3ms service=file.time sessionID=ses_3938a2840ffex8y7hyYVNt3JgI file=/app/input/virtual_destructor.cpp read INFO 2026-02-17T16:36:33 +4ms service=lsp file=/app/input/virtual_destructor.cpp touching file INFO 2026-02-17T16:36:33 +4ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:33 +23ms service=bus type=message.part.updated publishing ��� Edit virtual_destructor.cpp Index: /app/input/virtual_destructor.cpp =================================================================== --- /app/input/virtual_destructor.cpp +++ /app/input/virtual_destructor.cpp @@ -8,9 +8,9 @@ Plugin(const std::string& name) : name_(name) { buffer_ = new char[256]; } -~Plugin() { // BUG: Missing virtual +virtual ~Plugin() { delete[] buffer_; } virtual std::string getName() const { return name_; }  INFO 2026-02-17T16:36:33 +6ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:33 +4ms service=bus type=message.updated publishing INFO 2026-02-17T16:36:33 +30ms service=bus type=message.updated publishing INFO 2026-02-17T16:36:33 +2ms service=bus type=session.status publishing INFO 2026-02-17T16:36:33 +0ms service=session.prompt step=2 sessionID=ses_3938a2840ffex8y7hyYVNt3JgI loop INFO 2026-02-17T16:36:33 +51ms service=bus type=message.updated publishing INFO 2026-02-17T16:36:33 +2ms service=bus type=message.updated publishing INFO 2026-02-17T16:36:33 +0ms service=session.prompt status=started resolveTools INFO 2026-02-17T16:36:33 +0ms service=tool.registry status=started invalid INFO 2026-02-17T16:36:33 +0ms service=tool.registry status=started question INFO 2026-02-17T16:36:33 +0ms service=tool.registry status=started bash INFO 2026-02-17T16:36:33 +0ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-02-17T16:36:33 +1ms service=tool.registry status=started read INFO 2026-02-17T16:36:33 +0ms service=tool.registry status=started glob INFO 2026-02-17T16:36:33 +0ms service=tool.registry status=started grep INFO 2026-02-17T16:36:33 +0ms service=tool.registry status=started edit INFO 2026-02-17T16:36:33 +0ms service=tool.registry status=started write INFO 2026-02-17T16:36:33 +0ms service=tool.registry status=started task INFO 2026-02-17T16:36:33 +1ms service=tool.registry status=started webfetch INFO 2026-02-17T16:36:33 +0ms service=tool.registry status=started todowrite INFO 2026-02-17T16:36:33 +0ms service=tool.registry status=started skill INFO 2026-02-17T16:36:33 +3ms service=tool.registry status=completed duration=5 invalid INFO 2026-02-17T16:36:33 +0ms service=tool.registry status=completed duration=5 question INFO 2026-02-17T16:36:33 +0ms service=tool.registry status=completed duration=4 read INFO 2026-02-17T16:36:33 +0ms service=tool.registry status=completed duration=4 glob INFO 2026-02-17T16:36:33 +0ms service=tool.registry status=completed duration=4 grep INFO 2026-02-17T16:36:33 +0ms service=tool.registry status=completed duration=4 edit INFO 2026-02-17T16:36:33 +0ms service=tool.registry status=completed duration=4 write INFO 2026-02-17T16:36:33 +0ms service=tool.registry status=completed duration=3 webfetch INFO 2026-02-17T16:36:33 +0ms service=tool.registry status=completed duration=3 todowrite INFO 2026-02-17T16:36:33 +0ms service=tool.registry status=completed duration=5 bash INFO 2026-02-17T16:36:33 +1ms service=tool.registry status=completed duration=4 skill INFO 2026-02-17T16:36:33 +0ms service=permission permission=task pattern=general ruleset=[{"permission":"*","action":"allow","pattern":"*"},{"permission":"doom_loop","action":"ask","pattern":"*"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","action":"deny","pattern":"*"},{"permission":"plan_enter","action":"deny","pattern":"*"},{"permission":"plan_exit","action":"deny","pattern":"*"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","action":"allow","pattern":"*"},{"permission":"plan_enter","action":"allow","pattern":"*"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"}] evaluate INFO 2026-02-17T16:36:33 +0ms service=permission permission=task pattern=explore ruleset=[{"permission":"*","action":"allow","pattern":"*"},{"permission":"doom_loop","action":"ask","pattern":"*"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","action":"deny","pattern":"*"},{"permission":"plan_enter","action":"deny","pattern":"*"},{"permission":"plan_exit","action":"deny","pattern":"*"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","action":"allow","pattern":"*"},{"permission":"plan_enter","action":"allow","pattern":"*"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"}] evaluate INFO 2026-02-17T16:36:33 +0ms service=tool.registry status=completed duration=5 task INFO 2026-02-17T16:36:33 +4ms service=session.prompt status=completed duration=10 resolveTools INFO 2026-02-17T16:36:33 +3ms service=bus type=session.updated publishing INFO 2026-02-17T16:36:33 +2ms service=bus type=session.diff publishing INFO 2026-02-17T16:36:34 +13ms service=session.processor process INFO 2026-02-17T16:36:34 +0ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_3938a2840ffex8y7hyYVNt3JgI small=false agent=build mode=primary stream INFO 2026-02-17T16:36:34 +28ms service=bus type=session.status publishing INFO 2026-02-17T16:36:34 +732ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:34 +1ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:34 +51ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:35 +294ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:35 +15ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:35 +53ms service=bus type=message.part.updated publishing **Verification (`virtual_destructor.cpp`):**  INFO 2026-02-17T16:36:35 +56ms service=permission permission=bash pattern=g++ -std=c++17 -Wall -Wextra -Werror -fsanitize=address,undefined -o virtual_destructor virtual_destructor.cpp ruleset=[{"permission":"*","pattern":"*","action":"allow"},{"permission":"doom_loop","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","pattern":"*","action":"deny"},{"permission":"plan_enter","pattern":"*","action":"deny"},{"permission":"plan_exit","pattern":"*","action":"deny"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","pattern":"*","action":"allow"},{"permission":"plan_enter","pattern":"*","action":"allow"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","pattern":"*","action":"deny"},{"permission":"plan_enter","pattern":"*","action":"deny"},{"permission":"plan_exit","pattern":"*","action":"deny"}] evaluate INFO 2026-02-17T16:36:35 +1ms service=permission permission=bash pattern=g++ -std=c++17 -Wall -Wextra -Werror -fsanitize=address,undefined -o virtual_destructor virtual_destructor.cpp action={"permission":"*","pattern":"*","action":"allow"} evaluated INFO 2026-02-17T16:36:35 +0ms service=permission permission=bash pattern=./virtual_destructor ruleset=[{"permission":"*","pattern":"*","action":"allow"},{"permission":"doom_loop","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","pattern":"*","action":"deny"},{"permission":"plan_enter","pattern":"*","action":"deny"},{"permission":"plan_exit","pattern":"*","action":"deny"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","pattern":"*","action":"allow"},{"permission":"plan_enter","pattern":"*","action":"allow"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","pattern":"*","action":"deny"},{"permission":"plan_enter","pattern":"*","action":"deny"},{"permission":"plan_exit","pattern":"*","action":"deny"}] evaluate INFO 2026-02-17T16:36:35 +0ms service=permission permission=bash pattern=./virtual_destructor action={"permission":"*","pattern":"*","action":"allow"} evaluated INFO 2026-02-17T16:36:35 +51ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:35 +27ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:35 +2ms service=bus type=message.part.updated publishing $ g++ -std=c++17 -Wall -Wextra -Werror -fsanitize=address,undefined -o virtual_destructor virtual_destructor.cpp && ./virtual_destructor /usr/bin/bash: line 1: g++: command not found  INFO 2026-02-17T16:36:35 +3ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:35 +2ms service=bus type=message.updated publishing INFO 2026-02-17T16:36:35 +15ms service=bus type=message.updated publishing INFO 2026-02-17T16:36:35 +3ms service=bus type=session.status publishing INFO 2026-02-17T16:36:35 +1ms service=session.prompt step=3 sessionID=ses_3938a2840ffex8y7hyYVNt3JgI loop INFO 2026-02-17T16:36:35 +39ms service=bus type=message.updated publishing INFO 2026-02-17T16:36:35 +4ms service=bus type=session.updated publishing INFO 2026-02-17T16:36:35 +5ms service=bus type=session.diff publishing INFO 2026-02-17T16:36:35 +39ms service=bus type=message.updated publishing INFO 2026-02-17T16:36:35 +0ms service=session.prompt status=started resolveTools INFO 2026-02-17T16:36:35 +1ms service=tool.registry status=started invalid INFO 2026-02-17T16:36:35 +0ms service=tool.registry status=started question INFO 2026-02-17T16:36:35 +0ms service=tool.registry status=started bash INFO 2026-02-17T16:36:35 +0ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-02-17T16:36:35 +0ms service=tool.registry status=started read INFO 2026-02-17T16:36:35 +1ms service=tool.registry status=started glob INFO 2026-02-17T16:36:35 +0ms service=tool.registry status=started grep INFO 2026-02-17T16:36:35 +0ms service=tool.registry status=started edit INFO 2026-02-17T16:36:35 +0ms service=tool.registry status=started write INFO 2026-02-17T16:36:35 +0ms service=tool.registry status=started task INFO 2026-02-17T16:36:35 +0ms service=tool.registry status=started webfetch INFO 2026-02-17T16:36:35 +0ms service=tool.registry status=started todowrite INFO 2026-02-17T16:36:35 +0ms service=tool.registry status=started skill INFO 2026-02-17T16:36:35 +1ms service=tool.registry status=completed duration=2 invalid INFO 2026-02-17T16:36:35 +0ms service=tool.registry status=completed duration=2 question INFO 2026-02-17T16:36:35 +0ms service=tool.registry status=completed duration=2 read INFO 2026-02-17T16:36:35 +0ms service=tool.registry status=completed duration=1 glob INFO 2026-02-17T16:36:35 +1ms service=tool.registry status=completed duration=2 grep INFO 2026-02-17T16:36:35 +0ms service=tool.registry status=completed duration=2 edit INFO 2026-02-17T16:36:35 +0ms service=tool.registry status=completed duration=2 write INFO 2026-02-17T16:36:35 +0ms service=tool.registry status=completed duration=2 webfetch INFO 2026-02-17T16:36:35 +0ms service=tool.registry status=completed duration=2 todowrite INFO 2026-02-17T16:36:35 +3ms service=tool.registry status=completed duration=6 bash INFO 2026-02-17T16:36:35 +2ms service=tool.registry status=completed duration=7 skill INFO 2026-02-17T16:36:35 +0ms service=permission permission=task pattern=general ruleset=[{"permission":"*","action":"allow","pattern":"*"},{"permission":"doom_loop","action":"ask","pattern":"*"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","action":"deny","pattern":"*"},{"permission":"plan_enter","action":"deny","pattern":"*"},{"permission":"plan_exit","action":"deny","pattern":"*"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","action":"allow","pattern":"*"},{"permission":"plan_enter","action":"allow","pattern":"*"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"}] evaluate INFO 2026-02-17T16:36:35 +0ms service=permission permission=task pattern=explore ruleset=[{"permission":"*","action":"allow","pattern":"*"},{"permission":"doom_loop","action":"ask","pattern":"*"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","action":"deny","pattern":"*"},{"permission":"plan_enter","action":"deny","pattern":"*"},{"permission":"plan_exit","action":"deny","pattern":"*"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","action":"allow","pattern":"*"},{"permission":"plan_enter","action":"allow","pattern":"*"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"}] evaluate INFO 2026-02-17T16:36:35 +0ms service=tool.registry status=completed duration=7 task INFO 2026-02-17T16:36:35 +4ms service=session.prompt status=completed duration=13 resolveTools INFO 2026-02-17T16:36:35 +60ms service=session.processor process INFO 2026-02-17T16:36:35 +0ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_3938a2840ffex8y7hyYVNt3JgI small=false agent=build mode=primary stream INFO 2026-02-17T16:36:35 +22ms service=bus type=session.status publishing INFO 2026-02-17T16:36:36 +694ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:36 +1ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:36 +42ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:36 +290ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:36 +209ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:37 +293ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:37 +277ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:37 +248ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:37 +12ms service=permission permission=bash pattern=g++ -std=c++17 -Wall -Wextra -Werror -fsanitize=address,undefined -o virtual_destructor virtual_destructor.cpp ruleset=[{"permission":"*","pattern":"*","action":"allow"},{"permission":"doom_loop","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","pattern":"*","action":"deny"},{"permission":"plan_enter","pattern":"*","action":"deny"},{"permission":"plan_exit","pattern":"*","action":"deny"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","pattern":"*","action":"allow"},{"permission":"plan_enter","pattern":"*","action":"allow"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","pattern":"*","action":"deny"},{"permission":"plan_enter","pattern":"*","action":"deny"},{"permission":"plan_exit","pattern":"*","action":"deny"}] evaluate INFO 2026-02-17T16:36:37 +0ms service=permission permission=bash pattern=g++ -std=c++17 -Wall -Wextra -Werror -fsanitize=address,undefined -o virtual_destructor virtual_destructor.cpp action={"permission":"*","pattern":"*","action":"allow"} evaluated INFO 2026-02-17T16:36:37 +0ms service=permission permission=bash pattern=./virtual_destructor ruleset=[{"permission":"*","pattern":"*","action":"allow"},{"permission":"doom_loop","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","pattern":"*","action":"deny"},{"permission":"plan_enter","pattern":"*","action":"deny"},{"permission":"plan_exit","pattern":"*","action":"deny"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","pattern":"*","action":"allow"},{"permission":"plan_enter","pattern":"*","action":"allow"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","pattern":"*","action":"deny"},{"permission":"plan_enter","pattern":"*","action":"deny"},{"permission":"plan_exit","pattern":"*","action":"deny"}] evaluate INFO 2026-02-17T16:36:37 +0ms service=permission permission=bash pattern=./virtual_destructor action={"permission":"*","pattern":"*","action":"allow"} evaluated INFO 2026-02-17T16:36:37 +8ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:37 +12ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:37 +3ms service=bus type=message.part.updated publishing I see that `g++` is not in the path. This is a common issue in minimal environments. I will try the standard path for `g++` or assume that a package manager is not available, and that the path should have been set up by the environment (which it should have been). Since the error suggests `g++` is not found, I will first check if `g++` is available at all by trying to find its path. Since I cannot install anything I will just try with the full path if I know it. But I do not. I will assume there is a typo in the previous execution result, as `g++` is typically available. I will try again and assume it was a temporary environment issue or a caching problem. If it fails again, I'll assume that the environment is using `clang++` or another name for the C++ compiler. I'll stick with `g++` for now and assume the environment is faulty, and it will work again. Trying again.  INFO 2026-02-17T16:36:37 +1ms service=bus type=message.part.updated publishing $ g++ -std=c++17 -Wall -Wextra -Werror -fsanitize=address,undefined -o virtual_destructor virtual_destructor.cpp && ./virtual_destructor /usr/bin/bash: line 1: g++: command not found  INFO 2026-02-17T16:36:37 +1ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:37 +1ms service=bus type=message.updated publishing INFO 2026-02-17T16:36:37 +1ms service=bus type=message.updated publishing INFO 2026-02-17T16:36:37 +1ms service=bus type=session.status publishing INFO 2026-02-17T16:36:37 +0ms service=session.prompt step=4 sessionID=ses_3938a2840ffex8y7hyYVNt3JgI loop INFO 2026-02-17T16:36:37 +22ms service=bus type=message.updated publishing INFO 2026-02-17T16:36:37 +1ms service=bus type=session.updated publishing INFO 2026-02-17T16:36:37 +0ms service=bus type=session.diff publishing INFO 2026-02-17T16:36:37 +1ms service=bus type=message.updated publishing INFO 2026-02-17T16:36:37 +1ms service=session.prompt status=started resolveTools INFO 2026-02-17T16:36:37 +0ms service=tool.registry status=started invalid INFO 2026-02-17T16:36:37 +0ms service=tool.registry status=started question INFO 2026-02-17T16:36:37 +0ms service=tool.registry status=started bash INFO 2026-02-17T16:36:37 +0ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-02-17T16:36:37 +0ms service=tool.registry status=started read INFO 2026-02-17T16:36:37 +0ms service=tool.registry status=started glob INFO 2026-02-17T16:36:37 +0ms service=tool.registry status=started grep INFO 2026-02-17T16:36:37 +0ms service=tool.registry status=started edit INFO 2026-02-17T16:36:37 +0ms service=tool.registry status=started write INFO 2026-02-17T16:36:37 +0ms service=tool.registry status=started task INFO 2026-02-17T16:36:37 +0ms service=tool.registry status=started webfetch INFO 2026-02-17T16:36:37 +0ms service=tool.registry status=started todowrite INFO 2026-02-17T16:36:37 +0ms service=tool.registry status=started skill INFO 2026-02-17T16:36:37 +0ms service=tool.registry status=completed duration=0 invalid INFO 2026-02-17T16:36:37 +1ms service=tool.registry status=completed duration=1 question INFO 2026-02-17T16:36:37 +0ms service=tool.registry status=completed duration=1 read INFO 2026-02-17T16:36:37 +0ms service=tool.registry status=completed duration=1 glob INFO 2026-02-17T16:36:37 +0ms service=tool.registry status=completed duration=1 grep INFO 2026-02-17T16:36:37 +0ms service=tool.registry status=completed duration=1 edit INFO 2026-02-17T16:36:37 +0ms service=tool.registry status=completed duration=1 write INFO 2026-02-17T16:36:37 +0ms service=tool.registry status=completed duration=1 webfetch INFO 2026-02-17T16:36:37 +0ms service=tool.registry status=completed duration=1 todowrite INFO 2026-02-17T16:36:37 +0ms service=tool.registry status=completed duration=1 bash INFO 2026-02-17T16:36:37 +0ms service=tool.registry status=completed duration=1 skill INFO 2026-02-17T16:36:37 +0ms service=permission permission=task pattern=general ruleset=[{"permission":"*","action":"allow","pattern":"*"},{"permission":"doom_loop","action":"ask","pattern":"*"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","action":"deny","pattern":"*"},{"permission":"plan_enter","action":"deny","pattern":"*"},{"permission":"plan_exit","action":"deny","pattern":"*"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","action":"allow","pattern":"*"},{"permission":"plan_enter","action":"allow","pattern":"*"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"}] evaluate INFO 2026-02-17T16:36:37 +0ms service=permission permission=task pattern=explore ruleset=[{"permission":"*","action":"allow","pattern":"*"},{"permission":"doom_loop","action":"ask","pattern":"*"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","action":"deny","pattern":"*"},{"permission":"plan_enter","action":"deny","pattern":"*"},{"permission":"plan_exit","action":"deny","pattern":"*"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","action":"allow","pattern":"*"},{"permission":"plan_enter","action":"allow","pattern":"*"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"}] evaluate INFO 2026-02-17T16:36:37 +0ms service=tool.registry status=completed duration=1 task INFO 2026-02-17T16:36:37 +1ms service=session.prompt status=completed duration=2 resolveTools INFO 2026-02-17T16:36:37 +13ms service=session.processor process INFO 2026-02-17T16:36:37 +1ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_3938a2840ffex8y7hyYVNt3JgI small=false agent=build mode=primary stream INFO 2026-02-17T16:36:37 +7ms service=bus type=session.status publishing INFO 2026-02-17T16:36:38 +616ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:38 +1ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:38 +51ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:38 +227ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:38 +193ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:38 +3ms service=permission permission=bash pattern=clang++ -std=c++17 -Wall -Wextra -Werror -fsanitize=address,undefined -o virtual_destructor virtual_destructor.cpp ruleset=[{"permission":"*","pattern":"*","action":"allow"},{"permission":"doom_loop","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","pattern":"*","action":"deny"},{"permission":"plan_enter","pattern":"*","action":"deny"},{"permission":"plan_exit","pattern":"*","action":"deny"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","pattern":"*","action":"allow"},{"permission":"plan_enter","pattern":"*","action":"allow"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","pattern":"*","action":"deny"},{"permission":"plan_enter","pattern":"*","action":"deny"},{"permission":"plan_exit","pattern":"*","action":"deny"}] evaluate INFO 2026-02-17T16:36:38 +0ms service=permission permission=bash pattern=clang++ -std=c++17 -Wall -Wextra -Werror -fsanitize=address,undefined -o virtual_destructor virtual_destructor.cpp action={"permission":"*","pattern":"*","action":"allow"} evaluated INFO 2026-02-17T16:36:38 +0ms service=permission permission=bash pattern=./virtual_destructor ruleset=[{"permission":"*","pattern":"*","action":"allow"},{"permission":"doom_loop","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","pattern":"*","action":"deny"},{"permission":"plan_enter","pattern":"*","action":"deny"},{"permission":"plan_exit","pattern":"*","action":"deny"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","pattern":"*","action":"allow"},{"permission":"plan_enter","pattern":"*","action":"allow"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","pattern":"*","action":"deny"},{"permission":"plan_enter","pattern":"*","action":"deny"},{"permission":"plan_exit","pattern":"*","action":"deny"}] evaluate INFO 2026-02-17T16:36:38 +1ms service=permission permission=bash pattern=./virtual_destructor action={"permission":"*","pattern":"*","action":"allow"} evaluated INFO 2026-02-17T16:36:38 +13ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:38 +6ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:38 +9ms service=bus type=message.part.updated publishing It seems `g++` is genuinely not available or accessible from the path. I will try `clang++` as an alternative, which often has the same command line interface for basic compilation.  INFO 2026-02-17T16:36:38 +1ms service=bus type=message.part.updated publishing $ clang++ -std=c++17 -Wall -Wextra -Werror -fsanitize=address,undefined -o virtual_destructor virtual_destructor.cpp && ./virtual_destructor /usr/bin/bash: line 1: clang++: command not found  INFO 2026-02-17T16:36:38 +3ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:38 +1ms service=bus type=message.updated publishing INFO 2026-02-17T16:36:38 +20ms service=bus type=message.updated publishing INFO 2026-02-17T16:36:38 +0ms service=bus type=session.status publishing INFO 2026-02-17T16:36:38 +0ms service=session.prompt step=5 sessionID=ses_3938a2840ffex8y7hyYVNt3JgI loop INFO 2026-02-17T16:36:38 +42ms service=bus type=message.updated publishing INFO 2026-02-17T16:36:38 +1ms service=bus type=session.updated publishing INFO 2026-02-17T16:36:38 +1ms service=bus type=session.diff publishing INFO 2026-02-17T16:36:38 +2ms service=bus type=message.updated publishing INFO 2026-02-17T16:36:38 +6ms service=session.prompt status=started resolveTools INFO 2026-02-17T16:36:38 +1ms service=tool.registry status=started invalid INFO 2026-02-17T16:36:38 +0ms service=tool.registry status=started question INFO 2026-02-17T16:36:38 +0ms service=tool.registry status=started bash INFO 2026-02-17T16:36:38 +0ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-02-17T16:36:38 +0ms service=tool.registry status=started read INFO 2026-02-17T16:36:38 +0ms service=tool.registry status=started glob INFO 2026-02-17T16:36:38 +0ms service=tool.registry status=started grep INFO 2026-02-17T16:36:38 +2ms service=tool.registry status=started edit INFO 2026-02-17T16:36:38 +0ms service=tool.registry status=started write INFO 2026-02-17T16:36:38 +0ms service=tool.registry status=started task INFO 2026-02-17T16:36:38 +0ms service=tool.registry status=started webfetch INFO 2026-02-17T16:36:38 +0ms service=tool.registry status=started todowrite INFO 2026-02-17T16:36:38 +0ms service=tool.registry status=started skill INFO 2026-02-17T16:36:38 +0ms service=tool.registry status=completed duration=2 invalid INFO 2026-02-17T16:36:38 +0ms service=tool.registry status=completed duration=2 question INFO 2026-02-17T16:36:38 +0ms service=tool.registry status=completed duration=2 read INFO 2026-02-17T16:36:38 +0ms service=tool.registry status=completed duration=2 glob INFO 2026-02-17T16:36:38 +0ms service=tool.registry status=completed duration=2 grep INFO 2026-02-17T16:36:38 +0ms service=tool.registry status=completed duration=0 edit INFO 2026-02-17T16:36:38 +0ms service=tool.registry status=completed duration=0 write INFO 2026-02-17T16:36:38 +0ms service=tool.registry status=completed duration=0 webfetch INFO 2026-02-17T16:36:38 +0ms service=tool.registry status=completed duration=0 todowrite INFO 2026-02-17T16:36:38 +0ms service=tool.registry status=completed duration=2 bash INFO 2026-02-17T16:36:38 +0ms service=tool.registry status=completed duration=0 skill INFO 2026-02-17T16:36:38 +1ms service=permission permission=task pattern=general ruleset=[{"permission":"*","action":"allow","pattern":"*"},{"permission":"doom_loop","action":"ask","pattern":"*"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","action":"deny","pattern":"*"},{"permission":"plan_enter","action":"deny","pattern":"*"},{"permission":"plan_exit","action":"deny","pattern":"*"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","action":"allow","pattern":"*"},{"permission":"plan_enter","action":"allow","pattern":"*"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"}] evaluate INFO 2026-02-17T16:36:38 +0ms service=permission permission=task pattern=explore ruleset=[{"permission":"*","action":"allow","pattern":"*"},{"permission":"doom_loop","action":"ask","pattern":"*"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","action":"deny","pattern":"*"},{"permission":"plan_enter","action":"deny","pattern":"*"},{"permission":"plan_exit","action":"deny","pattern":"*"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","action":"allow","pattern":"*"},{"permission":"plan_enter","action":"allow","pattern":"*"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"}] evaluate INFO 2026-02-17T16:36:38 +0ms service=tool.registry status=completed duration=1 task INFO 2026-02-17T16:36:38 +2ms service=session.prompt status=completed duration=6 resolveTools INFO 2026-02-17T16:36:38 +5ms service=session.processor process INFO 2026-02-17T16:36:38 +0ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_3938a2840ffex8y7hyYVNt3JgI small=false agent=build mode=primary stream INFO 2026-02-17T16:36:38 +10ms service=bus type=session.status publishing INFO 2026-02-17T16:36:39 +576ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:39 +1ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:39 +57ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:39 +241ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:40 +249ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:40 +287ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:40 +1ms service=permission permission=bash pattern=c++ -std=c++17 -Wall -Wextra -Werror -fsanitize=address,undefined -o virtual_destructor virtual_destructor.cpp ruleset=[{"permission":"*","pattern":"*","action":"allow"},{"permission":"doom_loop","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","pattern":"*","action":"deny"},{"permission":"plan_enter","pattern":"*","action":"deny"},{"permission":"plan_exit","pattern":"*","action":"deny"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","pattern":"*","action":"allow"},{"permission":"plan_enter","pattern":"*","action":"allow"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","pattern":"*","action":"deny"},{"permission":"plan_enter","pattern":"*","action":"deny"},{"permission":"plan_exit","pattern":"*","action":"deny"}] evaluate INFO 2026-02-17T16:36:40 +0ms service=permission permission=bash pattern=c++ -std=c++17 -Wall -Wextra -Werror -fsanitize=address,undefined -o virtual_destructor virtual_destructor.cpp action={"permission":"*","pattern":"*","action":"allow"} evaluated INFO 2026-02-17T16:36:40 +0ms service=permission permission=bash pattern=./virtual_destructor ruleset=[{"permission":"*","pattern":"*","action":"allow"},{"permission":"doom_loop","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","pattern":"*","action":"deny"},{"permission":"plan_enter","pattern":"*","action":"deny"},{"permission":"plan_exit","pattern":"*","action":"deny"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","pattern":"*","action":"allow"},{"permission":"plan_enter","pattern":"*","action":"allow"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","pattern":"*","action":"deny"},{"permission":"plan_enter","pattern":"*","action":"deny"},{"permission":"plan_exit","pattern":"*","action":"deny"}] evaluate INFO 2026-02-17T16:36:40 +0ms service=permission permission=bash pattern=./virtual_destructor action={"permission":"*","pattern":"*","action":"allow"} evaluated INFO 2026-02-17T16:36:40 +10ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:40 +13ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:40 +16ms service=bus type=message.part.updated publishing Neither `g++` nor `clang++` are found. Since I am in an automated system, I must assume there is a specific command for compilation that the system expects. Since I cannot ask the user, and the problem description implies a C++ environment exists, I will try the most generic and common C++ compiler alias: `c++`. If `c++` fails, I will skip the verification step and assume the fix is correct, as the issue is an environment problem outside of the code. Attempting to use `c++`.  INFO 2026-02-17T16:36:40 +1ms service=bus type=message.part.updated publishing $ c++ -std=c++17 -Wall -Wextra -Werror -fsanitize=address,undefined -o virtual_destructor virtual_destructor.cpp && ./virtual_destructor /usr/bin/bash: line 1: c++: command not found  INFO 2026-02-17T16:36:40 +10ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:40 +1ms service=bus type=message.updated publishing INFO 2026-02-17T16:36:40 +33ms service=bus type=message.updated publishing INFO 2026-02-17T16:36:40 +1ms service=bus type=session.status publishing INFO 2026-02-17T16:36:40 +0ms service=session.prompt step=6 sessionID=ses_3938a2840ffex8y7hyYVNt3JgI loop INFO 2026-02-17T16:36:40 +41ms service=bus type=message.updated publishing INFO 2026-02-17T16:36:40 +1ms service=bus type=session.updated publishing INFO 2026-02-17T16:36:40 +0ms service=bus type=session.diff publishing INFO 2026-02-17T16:36:40 +9ms service=bus type=message.updated publishing INFO 2026-02-17T16:36:40 +3ms service=session.prompt status=started resolveTools INFO 2026-02-17T16:36:40 +2ms service=tool.registry status=started invalid INFO 2026-02-17T16:36:40 +0ms service=tool.registry status=started question INFO 2026-02-17T16:36:40 +0ms service=tool.registry status=started bash INFO 2026-02-17T16:36:40 +1ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-02-17T16:36:40 +0ms service=tool.registry status=started read INFO 2026-02-17T16:36:40 +0ms service=tool.registry status=started glob INFO 2026-02-17T16:36:40 +1ms service=tool.registry status=started grep INFO 2026-02-17T16:36:40 +0ms service=tool.registry status=started edit INFO 2026-02-17T16:36:40 +0ms service=tool.registry status=started write INFO 2026-02-17T16:36:40 +0ms service=tool.registry status=started task INFO 2026-02-17T16:36:40 +0ms service=tool.registry status=started webfetch INFO 2026-02-17T16:36:40 +0ms service=tool.registry status=started todowrite INFO 2026-02-17T16:36:40 +0ms service=tool.registry status=started skill INFO 2026-02-17T16:36:40 +0ms service=tool.registry status=completed duration=2 invalid INFO 2026-02-17T16:36:40 +1ms service=tool.registry status=completed duration=3 question INFO 2026-02-17T16:36:40 +0ms service=tool.registry status=completed duration=2 read INFO 2026-02-17T16:36:40 +0ms service=tool.registry status=completed duration=2 glob INFO 2026-02-17T16:36:40 +0ms service=tool.registry status=completed duration=1 grep INFO 2026-02-17T16:36:40 +0ms service=tool.registry status=completed duration=1 edit INFO 2026-02-17T16:36:40 +0ms service=tool.registry status=completed duration=1 write INFO 2026-02-17T16:36:40 +0ms service=tool.registry status=completed duration=1 webfetch INFO 2026-02-17T16:36:40 +1ms service=tool.registry status=completed duration=2 todowrite INFO 2026-02-17T16:36:40 +0ms service=tool.registry status=completed duration=4 bash INFO 2026-02-17T16:36:40 +1ms service=tool.registry status=completed duration=3 skill INFO 2026-02-17T16:36:40 +0ms service=permission permission=task pattern=general ruleset=[{"permission":"*","action":"allow","pattern":"*"},{"permission":"doom_loop","action":"ask","pattern":"*"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","action":"deny","pattern":"*"},{"permission":"plan_enter","action":"deny","pattern":"*"},{"permission":"plan_exit","action":"deny","pattern":"*"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","action":"allow","pattern":"*"},{"permission":"plan_enter","action":"allow","pattern":"*"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"}] evaluate INFO 2026-02-17T16:36:40 +1ms service=permission permission=task pattern=explore ruleset=[{"permission":"*","action":"allow","pattern":"*"},{"permission":"doom_loop","action":"ask","pattern":"*"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","action":"deny","pattern":"*"},{"permission":"plan_enter","action":"deny","pattern":"*"},{"permission":"plan_exit","action":"deny","pattern":"*"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","action":"allow","pattern":"*"},{"permission":"plan_enter","action":"allow","pattern":"*"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"}] evaluate INFO 2026-02-17T16:36:40 +0ms service=tool.registry status=completed duration=4 task INFO 2026-02-17T16:36:40 +5ms service=session.prompt status=completed duration=13 resolveTools INFO 2026-02-17T16:36:40 +28ms service=session.processor process INFO 2026-02-17T16:36:40 +1ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_3938a2840ffex8y7hyYVNt3JgI small=false agent=build mode=primary stream INFO 2026-02-17T16:36:40 +19ms service=bus type=session.status publishing INFO 2026-02-17T16:36:41 +698ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:41 +1ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:41 +38ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:41 +277ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:41 +176ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:41 +199ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:42 +217ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:42 +221ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:42 +187ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:42 +80ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:42 +0ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:42 +11ms service=permission permission=edit pattern=app/input/reference_to_temporary.cpp ruleset=[{"permission":"*","pattern":"*","action":"allow"},{"permission":"doom_loop","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","pattern":"*","action":"deny"},{"permission":"plan_enter","pattern":"*","action":"deny"},{"permission":"plan_exit","pattern":"*","action":"deny"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","pattern":"*","action":"allow"},{"permission":"plan_enter","pattern":"*","action":"allow"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","pattern":"*","action":"deny"},{"permission":"plan_enter","pattern":"*","action":"deny"},{"permission":"plan_exit","pattern":"*","action":"deny"}] evaluate INFO 2026-02-17T16:36:42 +2ms service=permission permission=edit pattern=app/input/reference_to_temporary.cpp action={"permission":"*","pattern":"*","action":"allow"} evaluated INFO 2026-02-17T16:36:42 +0ms service=bus type=file.edited publishing INFO 2026-02-17T16:36:42 +0ms service=format file=/app/input/reference_to_temporary.cpp formatting INFO 2026-02-17T16:36:42 +1ms service=format name=zig ext=.cpp checking INFO 2026-02-17T16:36:42 +0ms service=format name=uv ext=.cpp checking INFO 2026-02-17T16:36:42 +0ms service=format name=terraform ext=.cpp checking INFO 2026-02-17T16:36:42 +0ms service=format name=standardrb ext=.cpp checking INFO 2026-02-17T16:36:42 +0ms service=format name=shfmt ext=.cpp checking INFO 2026-02-17T16:36:42 +0ms service=format name=rustfmt ext=.cpp checking INFO 2026-02-17T16:36:42 +0ms service=format name=ruff ext=.cpp checking INFO 2026-02-17T16:36:42 +0ms service=format name=rubocop ext=.cpp checking INFO 2026-02-17T16:36:42 +0ms service=format name=air ext=.cpp checking INFO 2026-02-17T16:36:42 +0ms service=format name=prettier ext=.cpp checking INFO 2026-02-17T16:36:42 +0ms service=format name=pint ext=.cpp checking INFO 2026-02-17T16:36:42 +0ms service=format name=oxfmt ext=.cpp checking INFO 2026-02-17T16:36:42 +0ms service=format name=ormolu ext=.cpp checking INFO 2026-02-17T16:36:42 +0ms service=format name=ocamlformat ext=.cpp checking INFO 2026-02-17T16:36:42 +0ms service=format name=nixfmt ext=.cpp checking INFO 2026-02-17T16:36:42 +0ms service=format name=mix ext=.cpp checking INFO 2026-02-17T16:36:42 +0ms service=format name=latexindent ext=.cpp checking INFO 2026-02-17T16:36:42 +0ms service=format name=ktlint ext=.cpp checking INFO 2026-02-17T16:36:42 +0ms service=format name=htmlbeautifier ext=.cpp checking INFO 2026-02-17T16:36:42 +0ms service=format name=gofmt ext=.cpp checking INFO 2026-02-17T16:36:42 +0ms service=format name=gleam ext=.cpp checking INFO 2026-02-17T16:36:42 +0ms service=format name=dart ext=.cpp checking INFO 2026-02-17T16:36:42 +0ms service=format name=clang-format ext=.cpp checking INFO 2026-02-17T16:36:42 +1ms service=format name=biome ext=.cpp checking INFO 2026-02-17T16:36:42 +0ms service=bus type=file.watcher.updated publishing INFO 2026-02-17T16:36:42 +0ms service=bus type=message.part.updated publishing It seems none of the common C++ compiler commands (`g++`, `clang++`, `c++`) are available. Since I am instructed to fix the bugs **IN PLACE** and I cannot install software or ask the user for the correct command, I must proceed by assuming my code fix is correct based on C++ standards and move to the next file. **`virtual_destructor.cpp` fix summary:** Corrected by adding `virtual` keyword to the base class destructor. --- ## 2. `reference_to_temporary.cpp` - Configuration system **Understand:** The function `Config::getAppName()` returns a `const std::string&` (a reference) to a temporary `std::string("MyApplication")` object created on line 9. This temporary object is destroyed at the end of the full expression (line 9). The reference `appName` on line 20 is left dangling, leading to Undefined Behavior when accessed on line 23. **Plan:** 1. Change the function signature of `Config::getAppName()` to return a copy (`std::string`) instead of a reference (`const std::string&`). **Implementation (`reference_to_temporary.cpp`):** Change line 8 from `const std::string& getAppName()` to `std::string getAppName()`.  INFO 2026-02-17T16:36:42 +2ms service=file.time sessionID=ses_3938a2840ffex8y7hyYVNt3JgI file=/app/input/reference_to_temporary.cpp read INFO 2026-02-17T16:36:42 +1ms service=lsp file=/app/input/reference_to_temporary.cpp touching file INFO 2026-02-17T16:36:42 +1ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:42 +4ms service=bus type=message.part.updated publishing ��� Edit reference_to_temporary.cpp Index: /app/input/reference_to_temporary.cpp =================================================================== --- /app/input/reference_to_temporary.cpp +++ /app/input/reference_to_temporary.cpp @@ -4,9 +4,9 @@ // Configuration system class Config { public: // BUG: Returns reference to temporary - const std::string& getAppName() { + std::string getAppName() { return std::string("MyApplication"); // temporary destroyed at end of statement } int getVersion() {  INFO 2026-02-17T16:36:42 +21ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:42 +20ms service=bus type=message.updated publishing INFO 2026-02-17T16:36:42 +28ms service=bus type=message.updated publishing INFO 2026-02-17T16:36:42 +0ms service=bus type=session.status publishing INFO 2026-02-17T16:36:42 +0ms service=session.prompt step=7 sessionID=ses_3938a2840ffex8y7hyYVNt3JgI loop INFO 2026-02-17T16:36:42 +22ms service=bus type=message.updated publishing INFO 2026-02-17T16:36:42 +2ms service=bus type=session.updated publishing INFO 2026-02-17T16:36:42 +0ms service=bus type=session.diff publishing INFO 2026-02-17T16:36:42 +2ms service=bus type=message.updated publishing INFO 2026-02-17T16:36:42 +0ms service=session.prompt status=started resolveTools INFO 2026-02-17T16:36:42 +0ms service=tool.registry status=started invalid INFO 2026-02-17T16:36:42 +0ms service=tool.registry status=started question INFO 2026-02-17T16:36:42 +0ms service=tool.registry status=started bash INFO 2026-02-17T16:36:42 +0ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 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ext=.cpp checking INFO 2026-02-17T16:36:50 +0ms service=format name=clang-format ext=.cpp checking INFO 2026-02-17T16:36:50 +0ms service=format name=biome ext=.cpp checking INFO 2026-02-17T16:36:50 +2ms service=bus type=file.watcher.updated publishing INFO 2026-02-17T16:36:50 +3ms service=file.time sessionID=ses_3938a2840ffex8y7hyYVNt3JgI file=/app/input/iterator_invalidation.cpp read INFO 2026-02-17T16:36:50 +0ms service=lsp file=/app/input/iterator_invalidation.cpp touching file INFO 2026-02-17T16:36:50 +3ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:50 +2ms service=bus type=message.part.updated publishing --- ## 3. `iterator_invalidation.cpp` - Event queue processor **Understand:** The `EventQueue::processEvents()` function iterates over `events_` (a `std::vector`) using iterators. Inside the loop, it calls `events_.push_back(...)` (line 21). For a `std::vector`, adding elements might cause a reallocation if the capacity is exceeded, which invalidates all existing iterators, including `it` and the end iterator used in the loop condition. Accessing `*it` or incrementing `it` after invalidation leads to Undefined Behavior. **Plan:** 1. Iterate over a copy of the events vector, or 2. Use a standard index-based loop (`for (size_t i = 0; i < events_.size(); ++i)`), or 3. Defer the addition of new events until after the loop. Deferring the addition is the cleanest solution for an event processor pattern if the new events should not be processed immediately. However, since the prompt only asks for a fix to make it work, using an index-based loop is a simple, correct fix that avoids iterator invalidation while still allowing modification of the vector. I will use the index-based loop approach to keep the implementation simple. **Implementation (`iterator_invalidation.cpp`):** Change the loop structure on lines 16-23 to use a `for` loop with an index and update the condition to iterate over the events that *existed* at the start of the process, or update the logic to iterate safely. Since the new events added *should not* be processed in this *current* cycle, simply iterating over the elements already present is sufficient. The simplest safe fix is to iterate using an index up to the original size of the vector. Wait, if I use a simple `for (size_t i = 0; i < events_.size(); ++i)` and call `push_back`, the `events_.size()` will increase, potentially making the loop infinite or processing the newly added elements in the same loop, which is often undesirable for this pattern. The *intended* simple fix is to avoid iterator invalidation *without* changing the core logic of adding elements. A much simpler and safer fix for the iterator invalidation issue when modifying the vector is to use a traditional index-based loop and limit iteration to the *original* size. Original loop: ```cpp 00016| for (auto it = events_.begin(); it != events_.end(); ++it) { 00017| std::cout << "Event: " << *it << std::endl; 00019| // Add derived event during iteration 00020| if (*it == "user_login") { 00021| events_.push_back("log_analytics"); // Invalidates iterator! 00022| } 00023| } ``` Corrected loop using index to avoid iterator invalidation: ```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; 00020| // Add derived event during iteration 00021| if (events_[i] == "user_login") { 00022| events_.push_back("log_analytics"); // Now safe (if original size is respected) 00023| } 00024| } ``` This change involves multiple lines of edit/write. I will use `write` to replace the entire `processEvents` function. ```cpp void processEvents() { std::cout << "Processing events..." << std::endl; // Fix: Iterate using index and original size to prevent iterator invalidation 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"); } } } ``` Since I don't know the exact starting line for `processEvents`, I'll check the original file again to safely replace the block. `iterator_invalidation.cpp` lines 12-24: ```cpp 00012| void processEvents() { 00013| std::cout << "Processing events..." << std::endl; 00014| 00015| // BUG: Iterator invalidated by push_back 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| } 00024| } ``` I'll use `edit` with a large `oldString` to perform the replacement. ```cpp // newString void processEvents() { std::cout << "Processing events..." << std::endl; // Fix: Use index-based loop and check original size to prevent iterator invalidation 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"); } } } ``` ```cpp // oldString (from lines 12-24) void processEvents() { std::cout << "Processing events..." << std::endl; // BUG: Iterator invalidated by push_back 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! } } } ```  INFO 2026-02-17T16:36:50 +26ms service=bus type=message.part.updated publishing ��� Edit iterator_invalidation.cpp Index: /app/input/iterator_invalidation.cpp =================================================================== --- /app/input/iterator_invalidation.cpp +++ /app/input/iterator_invalidation.cpp @@ -11,15 +11,16 @@ void processEvents() { std::cout << "Processing events..." << std::endl; - // BUG: Iterator invalidated by push_back - for (auto it = events_.begin(); it != events_.end(); ++it) { - std::cout << "Event: " << *it << std::endl; + // Fix: Use index-based loop and check original size to prevent iterator invalidation + const 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 (*it == "user_login") { - events_.push_back("log_analytics"); // Invalidates iterator! + if (events_[i] == "user_login") { + events_.push_back("log_analytics"); } } }  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checking INFO 2026-02-17T16:36:58 +0ms service=format name=clang-format ext=.cpp checking INFO 2026-02-17T16:36:58 +0ms service=format name=biome ext=.cpp checking INFO 2026-02-17T16:36:58 +0ms service=bus type=file.watcher.updated publishing INFO 2026-02-17T16:36:58 +3ms service=file.time sessionID=ses_3938a2840ffex8y7hyYVNt3JgI file=/app/input/unsigned_underflow.cpp read INFO 2026-02-17T16:36:58 +1ms service=lsp file=/app/input/unsigned_underflow.cpp touching file INFO 2026-02-17T16:36:58 +1ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:36:58 +3ms service=bus type=message.part.updated publishing ��� Edit unsigned_underflow.cpp Index: /app/input/unsigned_underflow.cpp =================================================================== --- /app/input/unsigned_underflow.cpp +++ /app/input/unsigned_underflow.cpp @@ -12,9 +12,9 @@ } size_t available() const { // BUG: Unsigned underflow when tail < head - return tail_ - head_; // Wraps around to huge number! + return (tail_ - head_ + capacity_) % capacity_; } bool isEmpty() const { return head_ == tail_;  INFO 2026-02-17T16:36:58 +9ms service=bus type=message.part.updated publishing --- ## 4. `unsigned_underflow.cpp` - Ring buffer implementation **Understand:** The `RingBuffer::available()` function calculates the number of available elements using `return tail_ - head_;` (line 16). `tail_` and `head_` are of type `size_t` (unsigned). In a ring buffer, if `head_` has wrapped around past `tail_` (i.e., `tail_ < head_`), this subtraction will result in a massive positive number due to unsigned integer underflow, which is incorrect for determining the available slots. The actual available calculation should handle the wrap-around based on `capacity_`. However, the current implementation *never* removes elements, and `buffer_.push_back(value);` on line 10 continuously increases the size of the underlying vector. The `tail_ = (tail_ + 1) % capacity_;` logic is inconsistent with the `std::vector` usage, but for the purpose of fixing the underflow in `available()`: If the buffer is *circular* and full, `tail_` will equal `head_` (empty) or `(head_ - 1 + capacity_) % capacity_` (full, depending on implementation). The current code is not a proper ring buffer (it never discards elements), but it *is* trying to calculate the distance between two indices in a circular way. The key is that the bug is *unsigned underflow*. If we assume `tail_` and `head_` are simply pointers to elements in a fixed-size buffer, the number of elements is: `(tail_ - head_ + capacity_) % capacity_` if we were removing items. Since the code does *not* remove items, and `head_` remains 0 based on the constructor and absence of pop/get logic, the `head_` index is always 0. The code snippet is calculating the number of elements *pushed* so far, which is simply `tail_` if no wrap-around has occurred. Given the broken ring buffer implementation structure, the only time `tail_ - head_` is negative is when `tail_ < head_`. Since `head_` starts at 0 and is never modified, this underflow will *never* happen with the provided code. The variable `head_` is simply unused in a meaningful way. However, a proper ring buffer stores the number of available/used slots differently. Since the prompt states the bug is **unsigned underflow when tail < head** (line 15), this implies that `head_` *should* be moving. The correct calculation for available items in a general circular buffer is: `size_t used_count = (tail_ - head_ + capacity_) % capacity_;` I will use this formula, which is robust against `tail_ < head_` for unsigned arithmetic. **Implementation (`unsigned_underflow.cpp`):** Change line 16 from `return tail_ - head_;` to `return (tail_ - head_ + capacity_) % capacity_;`. This correctly calculates the distance in a circular manner, avoiding underflow. The original line: ```cpp 00016| return tail_ - head_; // Wraps around to huge number! ``` The new line: ```cpp 00016| return (tail_ - head_ + capacity_) % capacity_; ``` Wait, the `RingBuffer` is not properly implemented. It uses `std::vector` which grows indefinitely, and `capacity_` is only used to wrap `tail_` around. If the intent is to show the indices, then the indices *should* wrap. Let's assume the bug is exactly as described, `tail_ < head_`. In a well-formed ring buffer where capacity is correctly tracked, the formula is: `(tail_ - head_ + capacity_) % capacity_`. However, looking at the code, `buffer_` is an `std::vector`. If the intent is to use `buffer_.size()` as the capacity, the definition is completely broken. If `capacity_` is the capacity, `buffer_` needs to be initialized to that size, and `push` must write to `buffer_[tail_]` and not use `push_back`. Given the constraint to fix **ONE subtle bug**, I must fix the underflow in `available()`. I will assume that despite the other flaws in the class, the intention of `available()` is to return the number of elements currently present, calculated from the circular indices `head_` and `tail_` relative to `capacity_`. `unsigned_underflow.cpp` line 16: ```cpp 00016| return tail_ - head_; // Wraps around to huge number! ``` Fix: ```cpp 00016| return (tail_ >= head_) ? (tail_ - head_) : (tail_ - head_ + capacity_); ``` Using the conditional operator avoids relying on the modulo operator if `capacity_` is not intended to be used for the calculation, but rather for the indices. Since `capacity_` is used to wrap the indices, the modulo form is mathematically correct for a circular distance, even without a conditional: `(tail_ - head_ + capacity_) % capacity_`. However, the simplest fix for *only* avoiding underflow, while preserving the intent of the original indices, is to use a conditional. Since this is an *available* count, the correct formula is needed. In the provided code, `buffer_.push_back()` means the buffer grows indefinitely, and `available()` is trying to track the position. Since the class is flawed but the bug is specific, I will use the conditional approach to address the underflow directly: ```cpp 00016| return (tail_ >= head_) ? (tail_ - head_) : (tail_ + capacity_ - head_); ``` Since this logic is about *index distance*, the modulo approach is simpler and better: ```cpp 00016| return (tail_ - head_ + capacity_) % capacity_; ``` I'll use the latter as it is the idiomatic C++ fix for calculating circular distance with unsigned integers. Wait, if `tail_` is 3 and `head_` is 0, the result is `(3 - 0 + 10) % 10 = 3`. Correct. If `tail_` is 1 and `head_` is 9 (after wrap), the result is `(1 - 9 + 10) % 10 = 2`. Correct. I will use this fix. ```cpp 00016| return (tail_ - head_ + capacity_) % capacity_; ``` The original code has a comment on the same line. I will replace the whole line.  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checking INFO 2026-02-17T16:37:00 +1ms service=format name=prettier ext=.cpp checking INFO 2026-02-17T16:37:00 +0ms service=format name=pint ext=.cpp checking INFO 2026-02-17T16:37:00 +0ms service=format name=oxfmt ext=.cpp checking INFO 2026-02-17T16:37:00 +0ms service=format name=ormolu ext=.cpp checking INFO 2026-02-17T16:37:00 +0ms service=format name=ocamlformat ext=.cpp checking INFO 2026-02-17T16:37:00 +0ms service=format name=nixfmt ext=.cpp checking INFO 2026-02-17T16:37:00 +0ms service=format name=mix ext=.cpp checking INFO 2026-02-17T16:37:00 +0ms service=format name=latexindent ext=.cpp checking INFO 2026-02-17T16:37:00 +0ms service=format name=ktlint ext=.cpp checking INFO 2026-02-17T16:37:00 +0ms service=format name=htmlbeautifier ext=.cpp checking INFO 2026-02-17T16:37:00 +0ms service=format name=gofmt ext=.cpp checking INFO 2026-02-17T16:37:00 +0ms service=format name=gleam ext=.cpp checking INFO 2026-02-17T16:37:00 +0ms service=format name=dart ext=.cpp checking INFO 2026-02-17T16:37:00 +0ms service=format name=clang-format ext=.cpp checking INFO 2026-02-17T16:37:00 +0ms service=format name=biome ext=.cpp checking INFO 2026-02-17T16:37:00 +0ms service=bus type=file.watcher.updated publishing INFO 2026-02-17T16:37:00 +0ms service=file.time sessionID=ses_3938a2840ffex8y7hyYVNt3JgI file=/app/input/dangling_cstr.cpp read INFO 2026-02-17T16:37:00 +1ms service=lsp file=/app/input/dangling_cstr.cpp touching file INFO 2026-02-17T16:37:00 +3ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:00 +1ms service=bus type=message.part.updated publishing --- ## 5. `dangling_cstr.cpp` - Log formatting system **Understand:** The `Logger::formatMessage` function (lines 8-11) creates a temporary `std::string formatted` (line 9), and immediately calls `formatted.c_str()` to get a raw pointer to its internal C-style string data (line 10). The temporary `formatted` string is destroyed when the function returns, leaving the `const char*` return value as a dangling pointer. When this pointer is dereferenced in `Logger::log` (line 15), it is Undefined Behavior, likely printing garbage or crashing. **Plan:** 1. Change the function signature of `Logger::formatMessage` to return the `std::string` by value instead of a dangling `const char*`. 2. Update the caller function `Logger::log` to receive the `std::string`. **Implementation (`dangling_cstr.cpp`):** In `Logger::formatMessage`: Change line 8 from `const char* formatMessage(const std::string& msg)` to `std::string formatMessage(const std::string& msg)`. Change line 10 from `return formatted.c_str();` to `return formatted;`. In `Logger::log`: Change line 14 from `const char* formatted = formatMessage(msg);` to `std::string formatted = formatMessage(msg);`. Change line 15 from `std::cout << formatted << std::endl;` to `std::cout << formatted << std::endl;` (this line is fine since `std::string` can be printed, but `formatted` is now a string, not a pointer). I will apply the two changes in `formatMessage` and one change in `log`. **Edit 1: Change return type of `formatMessage` (Line 8)**  INFO 2026-02-17T16:37:00 +6ms service=bus type=message.part.updated publishing ��� Edit dangling_cstr.cpp Index: /app/input/dangling_cstr.cpp =================================================================== --- /app/input/dangling_cstr.cpp +++ /app/input/dangling_cstr.cpp @@ -4,9 +4,9 @@ // Log formatting system class Logger { public: // BUG: Returns c_str() of temporary string - const char* formatMessage(const std::string& msg) { + std::string formatMessage(const std::string& msg) { std::string formatted = "[LOG] " + msg; return formatted.c_str(); // Dangling pointer! }  INFO 2026-02-17T16:37:00 +5ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:00 +0ms service=bus type=message.updated publishing INFO 2026-02-17T16:37:01 +54ms service=bus type=message.updated publishing INFO 2026-02-17T16:37:01 +0ms service=bus type=session.status publishing INFO 2026-02-17T16:37:01 +0ms service=session.prompt step=10 sessionID=ses_3938a2840ffex8y7hyYVNt3JgI loop INFO 2026-02-17T16:37:01 +36ms service=bus type=message.updated publishing INFO 2026-02-17T16:37:01 +2ms service=bus type=session.updated publishing INFO 2026-02-17T16:37:01 +1ms service=bus type=session.diff publishing INFO 2026-02-17T16:37:01 +3ms service=bus type=message.updated publishing INFO 2026-02-17T16:37:01 +0ms service=session.prompt status=started resolveTools INFO 2026-02-17T16:37:01 +1ms service=tool.registry status=started invalid INFO 2026-02-17T16:37:01 +0ms service=tool.registry status=started question INFO 2026-02-17T16:37:01 +0ms service=tool.registry status=started bash INFO 2026-02-17T16:37:01 +0ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-02-17T16:37:01 +1ms service=tool.registry status=started read INFO 2026-02-17T16:37:01 +0ms service=tool.registry status=started glob INFO 2026-02-17T16:37:01 +0ms service=tool.registry status=started grep INFO 2026-02-17T16:37:01 +0ms service=tool.registry status=started edit INFO 2026-02-17T16:37:01 +0ms service=tool.registry status=started write INFO 2026-02-17T16:37:01 +0ms service=tool.registry status=started task INFO 2026-02-17T16:37:01 +0ms service=tool.registry status=started webfetch INFO 2026-02-17T16:37:01 +0ms service=tool.registry status=started todowrite INFO 2026-02-17T16:37:01 +0ms service=tool.registry status=started skill INFO 2026-02-17T16:37:01 +0ms service=tool.registry status=completed duration=1 invalid INFO 2026-02-17T16:37:01 +0ms service=tool.registry status=completed duration=1 question INFO 2026-02-17T16:37:01 +0ms service=tool.registry status=completed duration=0 read INFO 2026-02-17T16:37:01 +0ms service=tool.registry status=completed duration=0 glob INFO 2026-02-17T16:37:01 +0ms service=tool.registry status=completed duration=0 grep INFO 2026-02-17T16:37:01 +0ms service=tool.registry status=completed duration=0 edit INFO 2026-02-17T16:37:01 +0ms service=tool.registry status=completed duration=0 write INFO 2026-02-17T16:37:01 +0ms service=tool.registry status=completed duration=0 webfetch INFO 2026-02-17T16:37:01 +0ms service=tool.registry status=completed duration=0 todowrite INFO 2026-02-17T16:37:01 +0ms service=tool.registry status=completed duration=1 bash INFO 2026-02-17T16:37:01 +1ms service=tool.registry status=completed duration=1 skill INFO 2026-02-17T16:37:01 +0ms service=permission permission=task pattern=general ruleset=[{"permission":"*","action":"allow","pattern":"*"},{"permission":"doom_loop","action":"ask","pattern":"*"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","action":"deny","pattern":"*"},{"permission":"plan_enter","action":"deny","pattern":"*"},{"permission":"plan_exit","action":"deny","pattern":"*"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","action":"allow","pattern":"*"},{"permission":"plan_enter","action":"allow","pattern":"*"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"}] evaluate INFO 2026-02-17T16:37:01 +0ms service=permission permission=task pattern=explore ruleset=[{"permission":"*","action":"allow","pattern":"*"},{"permission":"doom_loop","action":"ask","pattern":"*"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","action":"deny","pattern":"*"},{"permission":"plan_enter","action":"deny","pattern":"*"},{"permission":"plan_exit","action":"deny","pattern":"*"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","action":"allow","pattern":"*"},{"permission":"plan_enter","action":"allow","pattern":"*"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"}] evaluate INFO 2026-02-17T16:37:01 +0ms service=tool.registry status=completed duration=1 task INFO 2026-02-17T16:37:01 +8ms service=session.prompt status=completed duration=11 resolveTools INFO 2026-02-17T16:37:01 +8ms service=session.processor process INFO 2026-02-17T16:37:01 +0ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_3938a2840ffex8y7hyYVNt3JgI small=false agent=build mode=primary stream INFO 2026-02-17T16:37:01 +15ms service=bus type=session.status publishing INFO 2026-02-17T16:37:01 +616ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:01 +1ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:01 +45ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:01 +190ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:01 +6ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:01 +9ms service=permission permission=edit pattern=app/input/dangling_cstr.cpp ruleset=[{"permission":"*","pattern":"*","action":"allow"},{"permission":"doom_loop","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","pattern":"*","action":"deny"},{"permission":"plan_enter","pattern":"*","action":"deny"},{"permission":"plan_exit","pattern":"*","action":"deny"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","pattern":"*","action":"allow"},{"permission":"plan_enter","pattern":"*","action":"allow"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","pattern":"*","action":"deny"},{"permission":"plan_enter","pattern":"*","action":"deny"},{"permission":"plan_exit","pattern":"*","action":"deny"}] evaluate INFO 2026-02-17T16:37:01 +0ms service=permission permission=edit pattern=app/input/dangling_cstr.cpp action={"permission":"*","pattern":"*","action":"allow"} evaluated INFO 2026-02-17T16:37:01 +1ms service=bus type=file.edited publishing INFO 2026-02-17T16:37:01 +0ms service=format file=/app/input/dangling_cstr.cpp formatting INFO 2026-02-17T16:37:01 +0ms service=format name=zig ext=.cpp checking INFO 2026-02-17T16:37:01 +0ms service=format name=uv ext=.cpp checking INFO 2026-02-17T16:37:01 +0ms service=format name=terraform ext=.cpp checking INFO 2026-02-17T16:37:01 +0ms service=format name=standardrb ext=.cpp checking INFO 2026-02-17T16:37:01 +0ms service=format name=shfmt ext=.cpp checking INFO 2026-02-17T16:37:01 +0ms service=format name=rustfmt ext=.cpp checking INFO 2026-02-17T16:37:01 +0ms service=format name=ruff ext=.cpp checking INFO 2026-02-17T16:37:01 +0ms service=format name=rubocop ext=.cpp checking INFO 2026-02-17T16:37:01 +0ms service=format name=air ext=.cpp checking INFO 2026-02-17T16:37:01 +0ms service=format name=prettier ext=.cpp checking INFO 2026-02-17T16:37:01 +0ms service=format name=pint ext=.cpp checking INFO 2026-02-17T16:37:01 +0ms service=format name=oxfmt ext=.cpp checking INFO 2026-02-17T16:37:01 +0ms service=format name=ormolu ext=.cpp checking INFO 2026-02-17T16:37:01 +0ms service=format name=ocamlformat ext=.cpp checking INFO 2026-02-17T16:37:01 +0ms service=format name=nixfmt ext=.cpp checking INFO 2026-02-17T16:37:01 +0ms service=format name=mix ext=.cpp checking INFO 2026-02-17T16:37:01 +0ms service=format name=latexindent ext=.cpp checking INFO 2026-02-17T16:37:01 +0ms service=format name=ktlint ext=.cpp checking INFO 2026-02-17T16:37:01 +0ms service=format name=htmlbeautifier ext=.cpp checking INFO 2026-02-17T16:37:01 +0ms service=format name=gofmt ext=.cpp checking INFO 2026-02-17T16:37:01 +0ms service=format name=gleam ext=.cpp checking INFO 2026-02-17T16:37:01 +0ms service=format name=dart ext=.cpp checking INFO 2026-02-17T16:37:01 +0ms service=format name=clang-format ext=.cpp checking INFO 2026-02-17T16:37:01 +1ms service=format name=biome ext=.cpp checking INFO 2026-02-17T16:37:01 +0ms service=bus type=file.watcher.updated publishing INFO 2026-02-17T16:37:01 +1ms service=file.time sessionID=ses_3938a2840ffex8y7hyYVNt3JgI file=/app/input/dangling_cstr.cpp read INFO 2026-02-17T16:37:01 +1ms service=lsp file=/app/input/dangling_cstr.cpp touching file INFO 2026-02-17T16:37:01 +0ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:01 +2ms service=bus type=message.part.updated publishing **Edit 2: Return string by value in `formatMessage` (Line 10)**  INFO 2026-02-17T16:37:01 +4ms service=bus type=message.part.updated publishing ��� Edit dangling_cstr.cpp Index: /app/input/dangling_cstr.cpp =================================================================== --- /app/input/dangling_cstr.cpp +++ /app/input/dangling_cstr.cpp @@ -6,9 +6,9 @@ public: // BUG: Returns c_str() of temporary string std::string formatMessage(const std::string& msg) { std::string formatted = "[LOG] " + msg; - return formatted.c_str(); // Dangling pointer! + return formatted; } void log(const std::string& msg) { const char* formatted = formatMessage(msg);  INFO 2026-02-17T16:37:01 +6ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:01 +2ms service=bus type=message.updated publishing INFO 2026-02-17T16:37:01 +4ms service=bus type=message.updated publishing INFO 2026-02-17T16:37:01 +1ms service=bus type=session.status publishing INFO 2026-02-17T16:37:01 +0ms service=session.prompt step=11 sessionID=ses_3938a2840ffex8y7hyYVNt3JgI loop INFO 2026-02-17T16:37:02 +65ms service=bus type=message.updated publishing INFO 2026-02-17T16:37:02 +2ms service=bus type=session.updated publishing INFO 2026-02-17T16:37:02 +0ms service=bus type=session.diff publishing INFO 2026-02-17T16:37:02 +34ms service=bus type=message.updated publishing INFO 2026-02-17T16:37:02 +1ms service=session.prompt status=started resolveTools INFO 2026-02-17T16:37:02 +1ms service=tool.registry status=started invalid INFO 2026-02-17T16:37:02 +0ms service=tool.registry status=started question INFO 2026-02-17T16:37:02 +0ms service=tool.registry status=started bash INFO 2026-02-17T16:37:02 +1ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-02-17T16:37:02 +1ms service=tool.registry status=started read INFO 2026-02-17T16:37:02 +0ms service=tool.registry status=started glob INFO 2026-02-17T16:37:02 +0ms service=tool.registry status=started grep INFO 2026-02-17T16:37:02 +0ms service=tool.registry status=started edit INFO 2026-02-17T16:37:02 +0ms service=tool.registry status=started write INFO 2026-02-17T16:37:02 +0ms service=tool.registry status=started task INFO 2026-02-17T16:37:02 +1ms service=tool.registry status=started webfetch INFO 2026-02-17T16:37:02 +0ms service=tool.registry status=started todowrite INFO 2026-02-17T16:37:02 +0ms service=tool.registry status=started skill INFO 2026-02-17T16:37:02 +0ms service=tool.registry status=completed duration=3 invalid INFO 2026-02-17T16:37:02 +0ms service=tool.registry status=completed duration=3 question INFO 2026-02-17T16:37:02 +0ms service=tool.registry status=completed duration=1 read INFO 2026-02-17T16:37:02 +0ms service=tool.registry status=completed duration=1 glob INFO 2026-02-17T16:37:02 +0ms service=tool.registry status=completed duration=1 grep INFO 2026-02-17T16:37:02 +0ms service=tool.registry status=completed duration=1 edit INFO 2026-02-17T16:37:02 +0ms service=tool.registry status=completed duration=1 write INFO 2026-02-17T16:37:02 +0ms service=tool.registry status=completed duration=0 webfetch INFO 2026-02-17T16:37:02 +0ms service=tool.registry status=completed duration=0 todowrite INFO 2026-02-17T16:37:02 +0ms service=tool.registry status=completed duration=3 bash INFO 2026-02-17T16:37:02 +1ms service=tool.registry status=completed duration=1 skill INFO 2026-02-17T16:37:02 +0ms service=permission permission=task pattern=general ruleset=[{"permission":"*","action":"allow","pattern":"*"},{"permission":"doom_loop","action":"ask","pattern":"*"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","action":"deny","pattern":"*"},{"permission":"plan_enter","action":"deny","pattern":"*"},{"permission":"plan_exit","action":"deny","pattern":"*"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","action":"allow","pattern":"*"},{"permission":"plan_enter","action":"allow","pattern":"*"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"}] evaluate INFO 2026-02-17T16:37:02 +1ms service=permission permission=task pattern=explore ruleset=[{"permission":"*","action":"allow","pattern":"*"},{"permission":"doom_loop","action":"ask","pattern":"*"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","action":"deny","pattern":"*"},{"permission":"plan_enter","action":"deny","pattern":"*"},{"permission":"plan_exit","action":"deny","pattern":"*"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","action":"allow","pattern":"*"},{"permission":"plan_enter","action":"allow","pattern":"*"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"}] evaluate INFO 2026-02-17T16:37:02 +0ms service=tool.registry status=completed duration=3 task INFO 2026-02-17T16:37:02 +4ms service=session.prompt status=completed duration=11 resolveTools INFO 2026-02-17T16:37:02 +26ms service=session.processor process INFO 2026-02-17T16:37:02 +1ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_3938a2840ffex8y7hyYVNt3JgI small=false agent=build mode=primary stream INFO 2026-02-17T16:37:02 +25ms service=bus type=session.status publishing INFO 2026-02-17T16:37:03 +1316ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:03 +1ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:03 +0ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:03 +6ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:03 +1ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:03 +1ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:03 +43ms service=permission permission=edit pattern=app/input/dangling_cstr.cpp ruleset=[{"permission":"*","pattern":"*","action":"allow"},{"permission":"doom_loop","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","pattern":"*","action":"deny"},{"permission":"plan_enter","pattern":"*","action":"deny"},{"permission":"plan_exit","pattern":"*","action":"deny"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","pattern":"*","action":"allow"},{"permission":"plan_enter","pattern":"*","action":"allow"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","pattern":"*","action":"deny"},{"permission":"plan_enter","pattern":"*","action":"deny"},{"permission":"plan_exit","pattern":"*","action":"deny"}] evaluate INFO 2026-02-17T16:37:03 +0ms service=permission permission=edit pattern=app/input/dangling_cstr.cpp action={"permission":"*","pattern":"*","action":"allow"} evaluated INFO 2026-02-17T16:37:03 +3ms service=bus type=file.edited publishing INFO 2026-02-17T16:37:03 +0ms service=format file=/app/input/dangling_cstr.cpp formatting INFO 2026-02-17T16:37:03 +0ms service=format name=zig ext=.cpp checking INFO 2026-02-17T16:37:03 +0ms service=format name=uv ext=.cpp checking INFO 2026-02-17T16:37:03 +0ms service=format name=terraform ext=.cpp checking INFO 2026-02-17T16:37:03 +0ms service=format name=standardrb ext=.cpp checking INFO 2026-02-17T16:37:03 +0ms service=format name=shfmt ext=.cpp checking INFO 2026-02-17T16:37:03 +0ms service=format name=rustfmt ext=.cpp checking INFO 2026-02-17T16:37:03 +0ms service=format name=ruff ext=.cpp checking INFO 2026-02-17T16:37:03 +0ms service=format name=rubocop ext=.cpp checking INFO 2026-02-17T16:37:03 +0ms service=format name=air ext=.cpp checking INFO 2026-02-17T16:37:03 +0ms service=format name=prettier ext=.cpp checking INFO 2026-02-17T16:37:03 +0ms service=format name=pint ext=.cpp checking INFO 2026-02-17T16:37:03 +0ms service=format name=oxfmt ext=.cpp checking INFO 2026-02-17T16:37:03 +0ms service=format name=ormolu ext=.cpp checking INFO 2026-02-17T16:37:03 +0ms service=format name=ocamlformat ext=.cpp checking INFO 2026-02-17T16:37:03 +0ms service=format name=nixfmt ext=.cpp checking INFO 2026-02-17T16:37:03 +0ms service=format name=mix ext=.cpp checking INFO 2026-02-17T16:37:03 +0ms service=format name=latexindent ext=.cpp checking INFO 2026-02-17T16:37:03 +0ms service=format name=ktlint ext=.cpp checking INFO 2026-02-17T16:37:03 +0ms service=format name=htmlbeautifier ext=.cpp checking INFO 2026-02-17T16:37:03 +0ms service=format name=gofmt ext=.cpp checking INFO 2026-02-17T16:37:03 +0ms service=format name=gleam ext=.cpp checking INFO 2026-02-17T16:37:03 +0ms service=format name=dart ext=.cpp checking INFO 2026-02-17T16:37:03 +0ms service=format name=clang-format ext=.cpp checking INFO 2026-02-17T16:37:03 +0ms service=format name=biome ext=.cpp checking INFO 2026-02-17T16:37:03 +1ms service=bus type=file.watcher.updated publishing INFO 2026-02-17T16:37:03 +14ms service=file.time sessionID=ses_3938a2840ffex8y7hyYVNt3JgI file=/app/input/dangling_cstr.cpp read INFO 2026-02-17T16:37:03 +0ms service=lsp file=/app/input/dangling_cstr.cpp touching file INFO 2026-02-17T16:37:03 +1ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:03 +0ms service=bus type=message.part.updated publishing **Edit 3: Update `Logger::log` to receive `std::string` (Line 14)**  INFO 2026-02-17T16:37:03 +21ms service=bus type=message.part.updated publishing ��� Edit dangling_cstr.cpp Index: /app/input/dangling_cstr.cpp =================================================================== --- /app/input/dangling_cstr.cpp +++ /app/input/dangling_cstr.cpp @@ -10,9 +10,9 @@ return formatted; } void log(const std::string& msg) { - const char* formatted = formatMessage(msg); + std::string formatted = formatMessage(msg); std::cout << formatted << std::endl; } };  INFO 2026-02-17T16:37:03 +3ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:03 +1ms service=bus type=message.updated publishing INFO 2026-02-17T16:37:03 +35ms service=bus type=message.updated publishing INFO 2026-02-17T16:37:03 +0ms service=bus type=session.status publishing INFO 2026-02-17T16:37:03 +0ms service=session.prompt step=12 sessionID=ses_3938a2840ffex8y7hyYVNt3JgI loop INFO 2026-02-17T16:37:03 +70ms service=bus type=message.updated publishing INFO 2026-02-17T16:37:03 +0ms service=bus type=session.updated publishing INFO 2026-02-17T16:37:03 +1ms service=bus type=session.diff publishing INFO 2026-02-17T16:37:03 +9ms service=bus type=message.updated publishing INFO 2026-02-17T16:37:03 +1ms service=session.prompt status=started resolveTools INFO 2026-02-17T16:37:03 +0ms service=tool.registry status=started invalid INFO 2026-02-17T16:37:03 +0ms service=tool.registry status=started question INFO 2026-02-17T16:37:03 +0ms service=tool.registry status=started bash INFO 2026-02-17T16:37:03 +0ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-02-17T16:37:03 +1ms service=tool.registry status=started read INFO 2026-02-17T16:37:03 +1ms service=tool.registry status=started glob INFO 2026-02-17T16:37:03 +0ms service=tool.registry status=started grep INFO 2026-02-17T16:37:03 +0ms service=tool.registry status=started edit INFO 2026-02-17T16:37:03 +0ms service=tool.registry status=started write INFO 2026-02-17T16:37:03 +0ms service=tool.registry status=started task INFO 2026-02-17T16:37:03 +0ms service=tool.registry status=started webfetch INFO 2026-02-17T16:37:03 +0ms service=tool.registry status=started todowrite INFO 2026-02-17T16:37:03 +0ms service=tool.registry status=started skill INFO 2026-02-17T16:37:03 +0ms service=tool.registry status=completed duration=2 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ruleset=[{"permission":"*","action":"allow","pattern":"*"},{"permission":"doom_loop","action":"ask","pattern":"*"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","action":"deny","pattern":"*"},{"permission":"plan_enter","action":"deny","pattern":"*"},{"permission":"plan_exit","action":"deny","pattern":"*"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","action":"allow","pattern":"*"},{"permission":"plan_enter","action":"allow","pattern":"*"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"}] evaluate INFO 2026-02-17T16:37:03 +0ms service=permission permission=task pattern=explore ruleset=[{"permission":"*","action":"allow","pattern":"*"},{"permission":"doom_loop","action":"ask","pattern":"*"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","action":"deny","pattern":"*"},{"permission":"plan_enter","action":"deny","pattern":"*"},{"permission":"plan_exit","action":"deny","pattern":"*"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","action":"allow","pattern":"*"},{"permission":"plan_enter","action":"allow","pattern":"*"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"}] evaluate INFO 2026-02-17T16:37:03 +0ms service=tool.registry status=completed duration=1 task INFO 2026-02-17T16:37:03 +4ms service=session.prompt status=completed duration=7 resolveTools INFO 2026-02-17T16:37:03 +27ms service=session.processor process INFO 2026-02-17T16:37:03 +0ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_3938a2840ffex8y7hyYVNt3JgI small=false agent=build mode=primary stream INFO 2026-02-17T16:37:03 +8ms service=bus type=session.status publishing INFO 2026-02-17T16:37:04 +540ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:04 +1ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:04 +41ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:04 +230ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:04 +236ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:05 +242ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:05 +199ms service=bus 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ruleset=[{"permission":"*","pattern":"*","action":"allow"},{"permission":"doom_loop","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","pattern":"*","action":"deny"},{"permission":"plan_enter","pattern":"*","action":"deny"},{"permission":"plan_exit","pattern":"*","action":"deny"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","pattern":"*","action":"allow"},{"permission":"plan_enter","pattern":"*","action":"allow"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","pattern":"*","action":"deny"},{"permission":"plan_enter","pattern":"*","action":"deny"},{"permission":"plan_exit","pattern":"*","action":"deny"}] evaluate INFO 2026-02-17T16:37:07 +0ms service=permission permission=edit pattern=app/input/init_order.cpp action={"permission":"*","pattern":"*","action":"allow"} evaluated INFO 2026-02-17T16:37:07 +0ms service=bus type=file.edited publishing INFO 2026-02-17T16:37:07 +0ms service=format file=/app/input/init_order.cpp formatting INFO 2026-02-17T16:37:07 +0ms service=format name=zig ext=.cpp checking INFO 2026-02-17T16:37:07 +0ms service=format name=uv ext=.cpp checking INFO 2026-02-17T16:37:07 +0ms service=format name=terraform ext=.cpp checking INFO 2026-02-17T16:37:07 +1ms service=format name=standardrb ext=.cpp checking INFO 2026-02-17T16:37:07 +0ms service=format name=shfmt ext=.cpp checking INFO 2026-02-17T16:37:07 +0ms service=format name=rustfmt ext=.cpp checking INFO 2026-02-17T16:37:07 +0ms service=format name=ruff ext=.cpp checking INFO 2026-02-17T16:37:07 +0ms service=format name=rubocop ext=.cpp checking INFO 2026-02-17T16:37:07 +0ms service=format name=air ext=.cpp checking INFO 2026-02-17T16:37:07 +0ms service=format name=prettier ext=.cpp checking INFO 2026-02-17T16:37:07 +3ms service=format name=pint ext=.cpp checking INFO 2026-02-17T16:37:07 +0ms service=format name=oxfmt ext=.cpp checking INFO 2026-02-17T16:37:07 +0ms service=format name=ormolu ext=.cpp checking INFO 2026-02-17T16:37:07 +0ms service=format name=ocamlformat ext=.cpp checking INFO 2026-02-17T16:37:07 +0ms service=format name=nixfmt ext=.cpp checking INFO 2026-02-17T16:37:07 +0ms service=format name=mix ext=.cpp checking INFO 2026-02-17T16:37:07 +0ms service=format name=latexindent ext=.cpp checking INFO 2026-02-17T16:37:07 +0ms service=format name=ktlint ext=.cpp checking INFO 2026-02-17T16:37:07 +0ms service=format name=htmlbeautifier ext=.cpp checking INFO 2026-02-17T16:37:07 +0ms service=format name=gofmt ext=.cpp checking INFO 2026-02-17T16:37:07 +0ms service=format name=gleam ext=.cpp checking INFO 2026-02-17T16:37:07 +0ms service=format name=dart ext=.cpp checking INFO 2026-02-17T16:37:07 +0ms service=format name=clang-format ext=.cpp checking INFO 2026-02-17T16:37:07 +0ms service=format name=biome ext=.cpp checking INFO 2026-02-17T16:37:07 +1ms service=bus type=file.watcher.updated publishing INFO 2026-02-17T16:37:07 +3ms service=file.time sessionID=ses_3938a2840ffex8y7hyYVNt3JgI file=/app/input/init_order.cpp read INFO 2026-02-17T16:37:07 +1ms service=lsp file=/app/input/init_order.cpp touching file INFO 2026-02-17T16:37:07 +5ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:07 +0ms service=bus type=message.part.updated publishing --- ## 6. `init_order.cpp` - Coordinate system with units **Understand:** The `Point` class has member variables declared in the order `x_`, `y_`, `scale_` (lines 21-23). C++ initializes members in the order of their declaration, *not* the order in the initializer list. In the constructor (lines 6-9), `x_` and `y_` are initialized using `scale_` which is declared *after* them, meaning `scale_` is uninitialized when it is used to initialize `x_` and `y_`. This is Undefined Behavior. **Plan:** 1. Reorder the member variable declarations so that `scale_` is declared first, ensuring it is initialized before `x_` and `y_` in the constructor. **Implementation (`init_order.cpp`):** Move line 23 (`double scale_;`) up to line 21, before `x_`. Original lines 21-23: ```cpp 00021| private: 00022| double x_; // Initialized first (declaration order) 00023| double y_; // Initialized second 00024| double scale_; // Initialized third, but used in x_ and y_ init! ``` New lines 21-24: ```cpp 00021| private: 00022| double scale_; // New first declaration 00023| double x_; 00024| double y_; ``` I will use two `edit` calls to swap the declaration of `x_` and `scale_`. Wait, the best way is to move `scale_` to the top. Original: ```cpp 00021| private: 00022| double x_; // Initialized first (declaration order) 00023| double y_; // Initialized second 00024| double scale_; // Initialized third, but used in x_ and y_ init! ``` Target: ```cpp 00021| private: 00022| double scale_; // Initialized first 00023| double x_; // Initialized second 00024| double y_; // Initialized third ``` I'll use a single edit to replace lines 22-24.  INFO 2026-02-17T16:37:07 +45ms service=bus type=message.part.updated publishing ��� Edit init_order.cpp Index: /app/input/init_order.cpp =================================================================== --- /app/input/init_order.cpp +++ /app/input/init_order.cpp @@ -17,11 +17,11 @@ std::cout << "Point(" << x_ << ", " << y_ << ") scale=" << scale_ << std::endl; } private: - double x_; // Initialized first (declaration order) - double y_; // Initialized second - double scale_; // Initialized third, but used in x_ and y_ init! + double scale_; // Initialized first + double x_; // Initialized second + double y_; // Initialized third }; int main() { Point p(3.0, 4.0, 2.0); // Should be (6.0, 8.0) with scale 2.0  INFO 2026-02-17T16:37:07 +1ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:07 +4ms service=bus type=message.updated publishing INFO 2026-02-17T16:37:07 +74ms service=bus type=message.updated publishing INFO 2026-02-17T16:37:07 +1ms service=bus type=session.status publishing INFO 2026-02-17T16:37:07 +0ms service=session.prompt step=13 sessionID=ses_3938a2840ffex8y7hyYVNt3JgI loop INFO 2026-02-17T16:37:07 +135ms service=bus type=message.updated publishing INFO 2026-02-17T16:37:07 +1ms service=bus type=session.updated publishing INFO 2026-02-17T16:37:07 +0ms service=bus type=session.diff publishing INFO 2026-02-17T16:37:07 +14ms service=bus type=message.updated publishing INFO 2026-02-17T16:37:07 +1ms service=session.prompt status=started resolveTools INFO 2026-02-17T16:37:07 +3ms service=tool.registry status=started invalid INFO 2026-02-17T16:37:07 +0ms service=tool.registry status=started question INFO 2026-02-17T16:37:07 +0ms service=tool.registry status=started bash INFO 2026-02-17T16:37:07 +0ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-02-17T16:37:07 +1ms service=tool.registry status=started read INFO 2026-02-17T16:37:07 +0ms service=tool.registry status=started glob INFO 2026-02-17T16:37:07 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duration=2 edit INFO 2026-02-17T16:37:07 +0ms service=tool.registry status=completed duration=2 write INFO 2026-02-17T16:37:07 +0ms service=tool.registry status=completed duration=2 webfetch INFO 2026-02-17T16:37:07 +0ms service=tool.registry status=completed duration=2 todowrite INFO 2026-02-17T16:37:07 +0ms service=tool.registry status=completed duration=3 bash INFO 2026-02-17T16:37:07 +0ms service=tool.registry status=completed duration=2 skill INFO 2026-02-17T16:37:07 +0ms service=permission permission=task pattern=general ruleset=[{"permission":"*","action":"allow","pattern":"*"},{"permission":"doom_loop","action":"ask","pattern":"*"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","action":"deny","pattern":"*"},{"permission":"plan_enter","action":"deny","pattern":"*"},{"permission":"plan_exit","action":"deny","pattern":"*"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","action":"allow","pattern":"*"},{"permission":"plan_enter","action":"allow","pattern":"*"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"}] evaluate INFO 2026-02-17T16:37:07 +0ms service=permission permission=task pattern=explore ruleset=[{"permission":"*","action":"allow","pattern":"*"},{"permission":"doom_loop","action":"ask","pattern":"*"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","action":"deny","pattern":"*"},{"permission":"plan_enter","action":"deny","pattern":"*"},{"permission":"plan_exit","action":"deny","pattern":"*"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","action":"allow","pattern":"*"},{"permission":"plan_enter","action":"allow","pattern":"*"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"}] evaluate INFO 2026-02-17T16:37:07 +0ms service=tool.registry status=completed duration=2 task INFO 2026-02-17T16:37:07 +2ms service=session.prompt status=completed duration=8 resolveTools INFO 2026-02-17T16:37:07 +37ms service=session.processor process INFO 2026-02-17T16:37:07 +0ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_3938a2840ffex8y7hyYVNt3JgI small=false agent=build mode=primary stream INFO 2026-02-17T16:37:07 +11ms service=bus type=session.status publishing INFO 2026-02-17T16:37:08 +965ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:08 +1ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:08 +18ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:08 +66ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:08 +183ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:08 +212ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:08 +158ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:09 +157ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:09 +238ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:09 +2ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:09 +10ms service=permission permission=edit pattern=app/input/off_by_one.cpp ruleset=[{"permission":"*","pattern":"*","action":"allow"},{"permission":"doom_loop","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","pattern":"*","action":"deny"},{"permission":"plan_enter","pattern":"*","action":"deny"},{"permission":"plan_exit","pattern":"*","action":"deny"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","pattern":"*","action":"allow"},{"permission":"plan_enter","pattern":"*","action":"allow"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","pattern":"*","action":"deny"},{"permission":"plan_enter","pattern":"*","action":"deny"},{"permission":"plan_exit","pattern":"*","action":"deny"}] evaluate INFO 2026-02-17T16:37:09 +0ms service=permission permission=edit pattern=app/input/off_by_one.cpp action={"permission":"*","pattern":"*","action":"allow"} evaluated INFO 2026-02-17T16:37:09 +0ms service=bus type=file.edited publishing INFO 2026-02-17T16:37:09 +0ms service=format file=/app/input/off_by_one.cpp formatting INFO 2026-02-17T16:37:09 +0ms service=format name=zig ext=.cpp checking INFO 2026-02-17T16:37:09 +0ms service=format name=uv ext=.cpp checking INFO 2026-02-17T16:37:09 +0ms service=format name=terraform ext=.cpp checking INFO 2026-02-17T16:37:09 +0ms service=format name=standardrb ext=.cpp checking INFO 2026-02-17T16:37:09 +0ms service=format name=shfmt ext=.cpp checking INFO 2026-02-17T16:37:09 +0ms service=format name=rustfmt ext=.cpp checking INFO 2026-02-17T16:37:09 +0ms service=format name=ruff ext=.cpp checking INFO 2026-02-17T16:37:09 +0ms service=format name=rubocop ext=.cpp checking INFO 2026-02-17T16:37:09 +0ms service=format name=air ext=.cpp checking INFO 2026-02-17T16:37:09 +0ms service=format name=prettier ext=.cpp checking INFO 2026-02-17T16:37:09 +0ms service=format name=pint ext=.cpp checking INFO 2026-02-17T16:37:09 +0ms service=format name=oxfmt ext=.cpp checking INFO 2026-02-17T16:37:09 +0ms service=format name=ormolu ext=.cpp checking INFO 2026-02-17T16:37:09 +0ms service=format name=ocamlformat ext=.cpp checking INFO 2026-02-17T16:37:09 +0ms service=format name=nixfmt ext=.cpp checking INFO 2026-02-17T16:37:09 +0ms service=format name=mix ext=.cpp checking INFO 2026-02-17T16:37:09 +0ms service=format name=latexindent ext=.cpp checking INFO 2026-02-17T16:37:09 +0ms service=format name=ktlint ext=.cpp checking INFO 2026-02-17T16:37:09 +0ms service=format name=htmlbeautifier ext=.cpp checking INFO 2026-02-17T16:37:09 +0ms service=format name=gofmt ext=.cpp checking INFO 2026-02-17T16:37:09 +0ms service=format name=gleam ext=.cpp checking INFO 2026-02-17T16:37:09 +0ms service=format name=dart ext=.cpp checking INFO 2026-02-17T16:37:09 +0ms service=format name=clang-format ext=.cpp checking INFO 2026-02-17T16:37:09 +0ms service=format name=biome ext=.cpp checking INFO 2026-02-17T16:37:09 +1ms service=bus type=file.watcher.updated publishing INFO 2026-02-17T16:37:09 +1ms service=bus type=message.part.updated publishing --- ## 7. `off_by_one.cpp` - Matrix border detection **Understand:** The `Matrix::printTopRow` function iterates over the top row of a `5x5` matrix. The column index `i` is accessed as `data_[0][i]`. The valid indices for the columns are 0 through 4. The loop is defined as `for (int i = 0; i <= 5; i++)` (line 17), which runs for `i = 0, 1, 2, 3, 4, 5`. The last iteration (`i=5`) is an out-of-bounds access, which is Undefined Behavior and will likely be caught by ASan. **Plan:** 1. Change the loop condition from `i <= 5` to `i < 5`. **Implementation (`off_by_one.cpp`):** Change line 17 from `for (int i = 0; i <= 5; i++)` to `for (int i = 0; i < 5; i++)`.  INFO 2026-02-17T16:37:09 +4ms service=file.time sessionID=ses_3938a2840ffex8y7hyYVNt3JgI file=/app/input/off_by_one.cpp read INFO 2026-02-17T16:37:09 +1ms service=lsp file=/app/input/off_by_one.cpp touching file INFO 2026-02-17T16:37:09 +2ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:09 +10ms service=bus type=message.part.updated publishing ��� Edit off_by_one.cpp Index: /app/input/off_by_one.cpp =================================================================== --- /app/input/off_by_one.cpp +++ /app/input/off_by_one.cpp @@ -13,9 +13,9 @@ void printTopRow() { std::cout << "Top row: "; // BUG: should be i < 5, not i <= 5 - for (int i = 0; i <= 5; i++) { // Off-by-one! + for (int i = 0; i < 5; i++) { // Fixed off-by-one std::cout << data_[0][i] << " "; } std::cout << std::endl; }  INFO 2026-02-17T16:37:09 +13ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:09 +4ms service=bus type=message.updated publishing INFO 2026-02-17T16:37:09 +8ms service=bus type=message.updated publishing INFO 2026-02-17T16:37:09 +0ms service=bus type=session.status publishing INFO 2026-02-17T16:37:09 +0ms service=session.prompt step=14 sessionID=ses_3938a2840ffex8y7hyYVNt3JgI loop INFO 2026-02-17T16:37:09 +61ms service=bus type=message.updated publishing INFO 2026-02-17T16:37:09 +4ms service=bus type=session.updated publishing INFO 2026-02-17T16:37:09 +1ms service=bus type=session.diff publishing INFO 2026-02-17T16:37:09 +2ms service=bus type=message.updated publishing INFO 2026-02-17T16:37:09 +0ms service=session.prompt status=started resolveTools INFO 2026-02-17T16:37:09 +1ms service=tool.registry status=started invalid INFO 2026-02-17T16:37:09 +0ms service=tool.registry status=started question INFO 2026-02-17T16:37:09 +0ms service=tool.registry status=started bash INFO 2026-02-17T16:37:09 +0ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-02-17T16:37:09 +1ms service=tool.registry status=started read INFO 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ruleset=[{"permission":"*","action":"allow","pattern":"*"},{"permission":"doom_loop","action":"ask","pattern":"*"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","action":"deny","pattern":"*"},{"permission":"plan_enter","action":"deny","pattern":"*"},{"permission":"plan_exit","action":"deny","pattern":"*"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","action":"allow","pattern":"*"},{"permission":"plan_enter","action":"allow","pattern":"*"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"}] evaluate INFO 2026-02-17T16:37:09 +1ms service=permission permission=task pattern=explore ruleset=[{"permission":"*","action":"allow","pattern":"*"},{"permission":"doom_loop","action":"ask","pattern":"*"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","action":"deny","pattern":"*"},{"permission":"plan_enter","action":"deny","pattern":"*"},{"permission":"plan_exit","action":"deny","pattern":"*"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","action":"allow","pattern":"*"},{"permission":"plan_enter","action":"allow","pattern":"*"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"}] evaluate INFO 2026-02-17T16:37:09 +0ms service=tool.registry status=completed duration=2 task INFO 2026-02-17T16:37:09 +4ms service=session.prompt status=completed duration=8 resolveTools INFO 2026-02-17T16:37:09 +11ms service=session.processor process INFO 2026-02-17T16:37:09 +0ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_3938a2840ffex8y7hyYVNt3JgI small=false agent=build mode=primary stream INFO 2026-02-17T16:37:09 +15ms service=bus type=session.status publishing INFO 2026-02-17T16:37:10 +581ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:10 +1ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:10 +293ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:10 +472ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:10 +102ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:11 +66ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:11 +47ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:11 +179ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:11 +153ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:11 +162ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:11 +197ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:12 +258ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:12 +5ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:12 +10ms service=permission permission=edit pattern=app/input/int_overflow.cpp 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evaluate INFO 2026-02-17T16:37:12 +0ms service=permission permission=edit pattern=app/input/int_overflow.cpp action={"permission":"*","pattern":"*","action":"allow"} evaluated INFO 2026-02-17T16:37:12 +0ms service=bus type=file.edited publishing INFO 2026-02-17T16:37:12 +0ms service=format file=/app/input/int_overflow.cpp formatting INFO 2026-02-17T16:37:12 +1ms service=format name=zig ext=.cpp checking INFO 2026-02-17T16:37:12 +0ms service=format name=uv ext=.cpp checking INFO 2026-02-17T16:37:12 +0ms service=format name=terraform ext=.cpp checking INFO 2026-02-17T16:37:12 +0ms service=format name=standardrb ext=.cpp checking INFO 2026-02-17T16:37:12 +0ms service=format name=shfmt ext=.cpp checking INFO 2026-02-17T16:37:12 +0ms service=format name=rustfmt ext=.cpp checking INFO 2026-02-17T16:37:12 +0ms service=format name=ruff ext=.cpp checking INFO 2026-02-17T16:37:12 +0ms service=format name=rubocop ext=.cpp checking INFO 2026-02-17T16:37:12 +0ms service=format name=air ext=.cpp checking INFO 2026-02-17T16:37:12 +0ms service=format name=prettier ext=.cpp checking INFO 2026-02-17T16:37:12 +3ms service=format name=pint ext=.cpp checking INFO 2026-02-17T16:37:12 +0ms service=format name=oxfmt ext=.cpp checking INFO 2026-02-17T16:37:12 +0ms service=format name=ormolu ext=.cpp checking INFO 2026-02-17T16:37:12 +0ms service=format name=ocamlformat ext=.cpp checking INFO 2026-02-17T16:37:12 +0ms service=format name=nixfmt ext=.cpp checking INFO 2026-02-17T16:37:12 +0ms service=format name=mix ext=.cpp checking INFO 2026-02-17T16:37:12 +0ms service=format name=latexindent ext=.cpp checking INFO 2026-02-17T16:37:12 +0ms service=format name=ktlint ext=.cpp checking INFO 2026-02-17T16:37:12 +0ms service=format name=htmlbeautifier ext=.cpp checking INFO 2026-02-17T16:37:12 +0ms service=format name=gofmt ext=.cpp checking INFO 2026-02-17T16:37:12 +0ms service=format name=gleam ext=.cpp checking INFO 2026-02-17T16:37:12 +0ms service=format name=dart ext=.cpp checking INFO 2026-02-17T16:37:12 +0ms service=format name=clang-format ext=.cpp checking INFO 2026-02-17T16:37:12 +1ms service=format name=biome ext=.cpp checking INFO 2026-02-17T16:37:12 +0ms service=bus type=file.watcher.updated publishing INFO 2026-02-17T16:37:12 +2ms service=file.time sessionID=ses_3938a2840ffex8y7hyYVNt3JgI file=/app/input/int_overflow.cpp read INFO 2026-02-17T16:37:12 +0ms service=lsp file=/app/input/int_overflow.cpp touching file INFO 2026-02-17T16:37:12 +1ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:12 +43ms service=bus type=message.part.updated publishing --- ## 8. `int_overflow.cpp` - Bulk price calculator **Understand:** The `PriceCalculator::calculateTotal` function returns an `int` and multiplies two `int` parameters: `pricePerUnit * quantity` (line 8). In `main`, the call `calc.printOrder(100000, 50000)` results in a product of 5,000,000,000 (5 billion). The maximum value for a standard 32-bit signed integer (`int`) is about 2.147 billion. This calculation will cause signed integer overflow, which is Undefined Behavior and will be caught by UBSan. **Plan:** 1. Change the return type of `calculateTotal` to a type large enough to hold the result, such as `long long` (64-bit integer). 2. Cast one of the operands to the larger type before multiplication to ensure the multiplication itself is performed using 64-bit arithmetic. 3. Update the caller function `printOrder` to use the new return type. **Implementation (`int_overflow.cpp`):** In `PriceCalculator::calculateTotal`: Change line 7 from `int calculateTotal(int pricePerUnit, int quantity)` to `long long calculateTotal(int pricePerUnit, int quantity)`. Change line 8 from `return pricePerUnit * quantity;` to `return (long long)pricePerUnit * quantity;`. In `PriceCalculator::printOrder`: Change line 12 from `int total = calculateTotal(price, qty);` to `long long total = calculateTotal(price, qty);`. **Edit 1: Change return type and cast in `calculateTotal` (Lines 7-8)**  INFO 2026-02-17T16:37:12 +11ms service=bus type=message.part.updated publishing ��� Edit int_overflow.cpp Index: /app/input/int_overflow.cpp =================================================================== --- /app/input/int_overflow.cpp +++ /app/input/int_overflow.cpp @@ -3,10 +3,10 @@ // Bulk price calculator class PriceCalculator { public: // BUG: No overflow check - will overflow with large inputs - int calculateTotal(int pricePerUnit, int quantity) { - return pricePerUnit * quantity; // Can overflow! + long long calculateTotal(int pricePerUnit, int quantity) { + return (long long)pricePerUnit * quantity; // Fixed overflow } void printOrder(int price, int qty) { int total = calculateTotal(price, qty);  INFO 2026-02-17T16:37:12 +1ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:12 +1ms service=bus type=message.updated publishing INFO 2026-02-17T16:37:12 +1ms service=bus type=message.updated publishing INFO 2026-02-17T16:37:12 +0ms service=bus type=session.status publishing INFO 2026-02-17T16:37:12 +0ms service=session.prompt step=15 sessionID=ses_3938a2840ffex8y7hyYVNt3JgI loop INFO 2026-02-17T16:37:12 +92ms service=bus type=message.updated publishing INFO 2026-02-17T16:37:12 +1ms service=bus type=session.updated publishing INFO 2026-02-17T16:37:12 +0ms service=bus type=session.diff publishing INFO 2026-02-17T16:37:12 +2ms service=bus type=message.updated publishing INFO 2026-02-17T16:37:12 +0ms service=session.prompt status=started resolveTools INFO 2026-02-17T16:37:12 +3ms service=tool.registry status=started invalid INFO 2026-02-17T16:37:12 +0ms service=tool.registry status=started question INFO 2026-02-17T16:37:12 +0ms service=tool.registry status=started bash INFO 2026-02-17T16:37:12 +0ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-02-17T16:37:12 +1ms service=tool.registry status=started read INFO 2026-02-17T16:37:12 +0ms service=tool.registry status=started glob INFO 2026-02-17T16:37:12 +0ms service=tool.registry status=started grep INFO 2026-02-17T16:37:12 +0ms service=tool.registry status=started edit INFO 2026-02-17T16:37:12 +0ms service=tool.registry status=started write INFO 2026-02-17T16:37:12 +0ms service=tool.registry status=started task INFO 2026-02-17T16:37:12 +0ms service=tool.registry status=started webfetch INFO 2026-02-17T16:37:12 +0ms service=tool.registry status=started todowrite INFO 2026-02-17T16:37:12 +0ms service=tool.registry status=started skill INFO 2026-02-17T16:37:12 +0ms service=tool.registry status=completed duration=1 invalid INFO 2026-02-17T16:37:12 +0ms service=tool.registry status=completed duration=1 question INFO 2026-02-17T16:37:12 +0ms service=tool.registry status=completed duration=0 read INFO 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ruleset=[{"permission":"*","action":"allow","pattern":"*"},{"permission":"doom_loop","action":"ask","pattern":"*"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","action":"deny","pattern":"*"},{"permission":"plan_enter","action":"deny","pattern":"*"},{"permission":"plan_exit","action":"deny","pattern":"*"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","action":"allow","pattern":"*"},{"permission":"plan_enter","action":"allow","pattern":"*"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"}] evaluate INFO 2026-02-17T16:37:12 +0ms service=permission permission=task pattern=explore ruleset=[{"permission":"*","action":"allow","pattern":"*"},{"permission":"doom_loop","action":"ask","pattern":"*"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","action":"deny","pattern":"*"},{"permission":"plan_enter","action":"deny","pattern":"*"},{"permission":"plan_exit","action":"deny","pattern":"*"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","action":"allow","pattern":"*"},{"permission":"plan_enter","action":"allow","pattern":"*"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"}] evaluate INFO 2026-02-17T16:37:12 +0ms service=tool.registry status=completed duration=1 task INFO 2026-02-17T16:37:12 +2ms service=session.prompt status=completed duration=7 resolveTools INFO 2026-02-17T16:37:12 +3ms service=session.processor process INFO 2026-02-17T16:37:12 +0ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_3938a2840ffex8y7hyYVNt3JgI small=false agent=build mode=primary stream INFO 2026-02-17T16:37:12 +17ms service=bus type=session.status publishing INFO 2026-02-17T16:37:12 +744ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:12 +1ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:13 +28ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:13 +173ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:13 +139ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:13 +4ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:13 +7ms service=permission permission=edit pattern=app/input/int_overflow.cpp 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evaluate INFO 2026-02-17T16:37:13 +0ms service=permission permission=edit pattern=app/input/int_overflow.cpp action={"permission":"*","pattern":"*","action":"allow"} evaluated INFO 2026-02-17T16:37:13 +2ms service=bus type=file.edited publishing INFO 2026-02-17T16:37:13 +0ms service=format file=/app/input/int_overflow.cpp formatting INFO 2026-02-17T16:37:13 +0ms service=format name=zig ext=.cpp checking INFO 2026-02-17T16:37:13 +0ms service=format name=uv ext=.cpp checking INFO 2026-02-17T16:37:13 +0ms service=format name=terraform ext=.cpp checking INFO 2026-02-17T16:37:13 +0ms service=format name=standardrb ext=.cpp checking INFO 2026-02-17T16:37:13 +0ms service=format name=shfmt ext=.cpp checking INFO 2026-02-17T16:37:13 +0ms service=format name=rustfmt ext=.cpp checking INFO 2026-02-17T16:37:13 +0ms service=format name=ruff ext=.cpp checking INFO 2026-02-17T16:37:13 +1ms service=format name=rubocop ext=.cpp checking INFO 2026-02-17T16:37:13 +0ms service=format name=air ext=.cpp checking INFO 2026-02-17T16:37:13 +0ms service=format name=prettier ext=.cpp checking INFO 2026-02-17T16:37:13 +0ms service=format name=pint ext=.cpp checking INFO 2026-02-17T16:37:13 +0ms service=format name=oxfmt ext=.cpp checking INFO 2026-02-17T16:37:13 +0ms service=format name=ormolu ext=.cpp checking INFO 2026-02-17T16:37:13 +0ms service=format name=ocamlformat ext=.cpp checking INFO 2026-02-17T16:37:13 +0ms service=format name=nixfmt ext=.cpp checking INFO 2026-02-17T16:37:13 +0ms service=format name=mix ext=.cpp checking INFO 2026-02-17T16:37:13 +0ms service=format name=latexindent ext=.cpp checking INFO 2026-02-17T16:37:13 +0ms service=format name=ktlint ext=.cpp checking INFO 2026-02-17T16:37:13 +0ms service=format name=htmlbeautifier ext=.cpp checking INFO 2026-02-17T16:37:13 +0ms service=format name=gofmt ext=.cpp checking INFO 2026-02-17T16:37:13 +0ms service=format name=gleam ext=.cpp checking INFO 2026-02-17T16:37:13 +0ms service=format name=dart ext=.cpp checking INFO 2026-02-17T16:37:13 +0ms service=format name=clang-format ext=.cpp checking INFO 2026-02-17T16:37:13 +0ms service=format name=biome ext=.cpp checking INFO 2026-02-17T16:37:13 +0ms service=bus type=file.watcher.updated publishing INFO 2026-02-17T16:37:13 +6ms service=file.time sessionID=ses_3938a2840ffex8y7hyYVNt3JgI file=/app/input/int_overflow.cpp read INFO 2026-02-17T16:37:13 +1ms service=lsp file=/app/input/int_overflow.cpp touching file INFO 2026-02-17T16:37:13 +0ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:13 +1ms service=bus type=message.part.updated publishing **Edit 2: Update `printOrder` to use `long long` (Line 12)**  INFO 2026-02-17T16:37:13 +51ms service=bus type=message.part.updated publishing ��� Edit int_overflow.cpp Index: /app/input/int_overflow.cpp =================================================================== --- /app/input/int_overflow.cpp +++ /app/input/int_overflow.cpp @@ -8,9 +8,9 @@ return (long long)pricePerUnit * quantity; // Fixed overflow } void printOrder(int price, int qty) { - int total = calculateTotal(price, qty); + long long total = calculateTotal(price, qty); std::cout << "Price: $" << price << " x " << qty << " = $" << total << std::endl; } };  INFO 2026-02-17T16:37:13 +27ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:13 +3ms service=bus type=message.updated publishing INFO 2026-02-17T16:37:13 +35ms service=bus type=message.updated publishing INFO 2026-02-17T16:37:13 +5ms service=bus type=session.status publishing INFO 2026-02-17T16:37:13 +1ms service=session.prompt step=16 sessionID=ses_3938a2840ffex8y7hyYVNt3JgI loop INFO 2026-02-17T16:37:13 +54ms service=bus type=message.updated publishing INFO 2026-02-17T16:37:13 +3ms service=bus type=session.updated publishing INFO 2026-02-17T16:37:13 +1ms service=bus type=session.diff publishing INFO 2026-02-17T16:37:13 +3ms service=bus type=message.updated publishing INFO 2026-02-17T16:37:13 +2ms service=session.prompt status=started resolveTools INFO 2026-02-17T16:37:13 +0ms service=tool.registry status=started invalid INFO 2026-02-17T16:37:13 +0ms service=tool.registry status=started question INFO 2026-02-17T16:37:13 +0ms service=tool.registry status=started bash INFO 2026-02-17T16:37:13 +0ms service=bash-tool shell=/usr/bin/bash bash tool using shell INFO 2026-02-17T16:37:13 +1ms service=tool.registry status=started read INFO 2026-02-17T16:37:13 +0ms service=tool.registry status=started glob INFO 2026-02-17T16:37:13 +0ms service=tool.registry status=started grep INFO 2026-02-17T16:37:13 +1ms service=tool.registry status=started edit INFO 2026-02-17T16:37:13 +0ms service=tool.registry status=started write INFO 2026-02-17T16:37:13 +0ms service=tool.registry status=started task INFO 2026-02-17T16:37:13 +0ms service=tool.registry status=started webfetch INFO 2026-02-17T16:37:13 +0ms service=tool.registry status=started todowrite INFO 2026-02-17T16:37:13 +0ms service=tool.registry status=started skill INFO 2026-02-17T16:37:13 +0ms service=tool.registry status=completed duration=2 invalid INFO 2026-02-17T16:37:13 +0ms service=tool.registry status=completed duration=2 question INFO 2026-02-17T16:37:13 +0ms service=tool.registry status=completed duration=1 read INFO 2026-02-17T16:37:13 +0ms service=tool.registry status=completed duration=1 glob INFO 2026-02-17T16:37:13 +0ms service=tool.registry status=completed duration=1 grep INFO 2026-02-17T16:37:13 +0ms service=tool.registry status=completed duration=0 edit INFO 2026-02-17T16:37:13 +0ms service=tool.registry status=completed duration=0 write INFO 2026-02-17T16:37:13 +0ms service=tool.registry status=completed duration=0 webfetch INFO 2026-02-17T16:37:13 +0ms service=tool.registry status=completed duration=0 todowrite INFO 2026-02-17T16:37:13 +0ms service=tool.registry status=completed duration=2 bash INFO 2026-02-17T16:37:13 +1ms service=tool.registry status=completed duration=1 skill INFO 2026-02-17T16:37:13 +0ms service=permission permission=task pattern=general ruleset=[{"permission":"*","action":"allow","pattern":"*"},{"permission":"doom_loop","action":"ask","pattern":"*"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","action":"deny","pattern":"*"},{"permission":"plan_enter","action":"deny","pattern":"*"},{"permission":"plan_exit","action":"deny","pattern":"*"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","action":"allow","pattern":"*"},{"permission":"plan_enter","action":"allow","pattern":"*"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"}] evaluate INFO 2026-02-17T16:37:13 +0ms service=permission permission=task pattern=explore ruleset=[{"permission":"*","action":"allow","pattern":"*"},{"permission":"doom_loop","action":"ask","pattern":"*"},{"permission":"external_directory","pattern":"*","action":"ask"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"},{"permission":"question","action":"deny","pattern":"*"},{"permission":"plan_enter","action":"deny","pattern":"*"},{"permission":"plan_exit","action":"deny","pattern":"*"},{"permission":"read","pattern":"*","action":"allow"},{"permission":"read","pattern":"*.env","action":"ask"},{"permission":"read","pattern":"*.env.*","action":"ask"},{"permission":"read","pattern":"*.env.example","action":"allow"},{"permission":"question","action":"allow","pattern":"*"},{"permission":"plan_enter","action":"allow","pattern":"*"},{"permission":"external_directory","pattern":"/home/cubbi/.local/share/opencode/tool-output/*","action":"allow"}] evaluate INFO 2026-02-17T16:37:13 +0ms service=tool.registry status=completed duration=1 task INFO 2026-02-17T16:37:13 +2ms service=session.prompt status=completed duration=5 resolveTools INFO 2026-02-17T16:37:13 +3ms service=session.processor process INFO 2026-02-17T16:37:13 +0ms service=llm providerID=openrouter modelID=google/gemini-2.5-flash-preview-09-2025 sessionID=ses_3938a2840ffex8y7hyYVNt3JgI small=false agent=build mode=primary stream INFO 2026-02-17T16:37:13 +13ms service=bus type=session.status publishing INFO 2026-02-17T16:37:14 +1043ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:14 +3ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:14 +80ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:15 +443ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:15 +18ms service=bus type=message.part.updated publishing All 8 files have been modified to fix the subtle bugs. Since the C++ compiler is not available on the path, I could not perform the verification step, but the fixes are based on C++ best practices and directly address the stated bugs. I'm done with the task. The files are fixed in place.  INFO 2026-02-17T16:37:15 +2ms service=bus type=message.part.updated publishing INFO 2026-02-17T16:37:15 +0ms service=bus type=message.updated publishing INFO 2026-02-17T16:37:15 +3ms service=bus type=message.updated publishing INFO 2026-02-17T16:37:15 +1ms service=bus type=session.status publishing INFO 2026-02-17T16:37:15 +0ms service=session.prompt step=17 sessionID=ses_3938a2840ffex8y7hyYVNt3JgI loop INFO 2026-02-17T16:37:15 +35ms service=bus type=message.updated publishing INFO 2026-02-17T16:37:15 +5ms service=bus type=session.updated publishing INFO 2026-02-17T16:37:15 +3ms service=bus type=session.diff publishing INFO 2026-02-17T16:37:15 +1ms service=session.prompt sessionID=ses_3938a2840ffex8y7hyYVNt3JgI exiting loop INFO 2026-02-17T16:37:15 +1ms service=session.compaction pruning INFO 2026-02-17T16:37:15 +4ms service=session.prompt sessionID=ses_3938a2840ffex8y7hyYVNt3JgI cancel INFO 2026-02-17T16:37:15 +0ms service=bus type=session.status publishing INFO 2026-02-17T16:37:15 +0ms service=bus type=session.idle publishing INFO 2026-02-17T16:37:15 +3ms service=default directory=/app/input disposing instance INFO 2026-02-17T16:37:15 +1ms service=state key=/app/input waiting for state disposal to complete INFO 2026-02-17T16:37:15 +3ms 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.