Sphinx
Sphinx is a Git hook that quizzes you on what your AI coding agent's code does before it ships, for developers who use coding agents.
What it is good for
- Checking that AI-written code is understood before it is pushed
- Catching edge-case bugs in code an agent wrote
- Making sure a developer can explain changes before merging
At a glance
- Who it is for
- Setup
- Guided command-line setup
Level 4 of 5. You copy and paste commands into a terminal by following the instructions. Comfortable territory for vibe coders.
- Cost
- Free and open source
- Type
- Other
- Tasks
- Works with
- Codex, Claude Code, Cursor, OpenCode, Pi, Git
Momentum
- Rank this week
- Not ranked yet
- Best rank
- None yet
On Hacker News
- Show HN: Sphinx, A hook that quizzes you on your AI's code before shipping 253 points, 89 comments, Oct 18, 2026
Official links
Setup steps are on the official pages. We do not repeat them here, since they change.
Questions
- Is Sphinx free?
- Yes. It is free and open source.
- Do I need to know how to code to use Sphinx?
- You do not need to write code, but setup means copying and pasting commands into a terminal by following its instructions.
- What does Sphinx work with?
- According to its own documentation, it works with Codex, Claude Code, Cursor, OpenCode, Pi, and Git.
- What is Sphinx good for?
- Checking that AI-written code is understood before it is pushed, catching edge-case bugs in code an agent wrote, and making sure a developer can explain changes before merging.
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