Sphinx
A Git hook for agent-assisted development. Before your agent’s code ships, Sphinx asks you a question about what it actually does.
Sphinx launched on 18 October 2026. It ranked #1 on Daily Launch on 19 October 2026 with a Launch Score of 99, from 248 points on Show HN. It was new in the ranking that day.
What is Sphinx?
FOSS, Basically it plugs into your existing coding agent workflow and every time you push to prod it'll throw up a questionnaire that checks if you understand how the code you're pushing works.
From its Hacker News post
Sphinx is a launch on Show HN.
In its own words
A hook that quizzes you on your AI's code before shipping
From its Show HN post
Launch timeline
Launch Score, last 7 days
Ranked on one day so far: 99 of 100 on 19 October.