Releases·Tool Release
Ouroboros: open-source debugger-tracer logging every function call, arguments, and results across 8 languages
A developer shared Ouroboros, a debugger-tracer tool that records what a program actually did — every function call, its arguments, and its result — for use by LLMs and programmers. It supports 8 languages, and the author says the goal is letting LLMs debug programs before code is pasted into a codebase.
2 engagement1 sourceThu, Sep 10, 2026, 07:12 PM
AI Overview
- Ouroboros, BSD-2-Clause licensed on GitHub, wraps functions to emit two JSON lines per call with arguments, return value or exception, and duration
- Eight languages share one record format: Python, JavaScript/TypeScript, C, C++, Elixir, Go, Java, C#
- Benchmark with traces lifted Qwen debug-task accuracy: qwen3.5:4b +34.3 points to 78.3%, qwen3:32b +23.6 to 90.3%, a Claude Opus 5 subagent +3.3 to 98.3%
- An in_flight field flags calls with no exit line, locating hangs in long-running silent processes
- Installs via uv or brew as two executables, ouroboros and ouroboros-mcp, with no daemon, agent, port, or collector; dataset on HuggingFace
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