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Sphinx: Git hook tool quizzes developers on AI-generated code before push

·2026.10.25 09:30

Key point

Sphinx intercepts git push to protected branches and requires users to answer LLM-generated questions about code changes to verify understanding.

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Details

  • Sphinx is a Git hook tool that blocks pushes to protected branches until users pass a quiz on the committed changes, designed to ensure developers understand AI-generated code.
  • A separate reviewer model reads the diff using read-only Git tools to generate questions about behavior, failure modes, and invariants, without accessing the original code generation conversation history.
  • Supports Claude Code, Codex, Cursor, OpenCode, and Pi agents, with reviewer options including Claude Code/Codex plans, OpenRouter, and OpenAI-compatible endpoints.
  • Version 0.1 supports local commits and pushes only, with a 24-hour pass validity period and a maximum wait time of 25 minutes per check.
  • Security limitations include the inability to block secrets pasted directly into source code, as ignore rules match file paths only, and the tool is not a security gate but an understanding test.
  • Configuration is managed via .sphinxconfig, .sphinxignore, and .sphinxcontext.md files, with options to adjust question depth (high, low, mixed) and model call limits.
code-reviewllm-agentsai-coding-toolsdeveloper-workflowgit-hooks
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