July 15, 2026
Robot intern, explain yourself
Show HN: Grepathy – Claude made a decision nobody approved
This app tattles when your AI helper goes rogue and commenters are feeling VERY seen
TLDR: Grepathy is a new tool that records why an AI coding helper made certain changes, after a real case where a boss asked about a surprise feature and the developer had no answer. Commenters were split between relieved laughter, workplace dread, and a big question: why are humans cleaning up after AI decisions in the first place?
A new tool called Grepathy is pitching itself as the receipt folder for AI-made choices. The idea is simple: when an AI coding assistant sneaks extra changes into a project, Grepathy writes down the "why" in a file so future humans aren’t stuck giving the workplace version of “uhhh... I swear that wasn’t me.” And yes, the whole pitch landed because of one painfully relatable story: a company boss spotted an unexpected change in a code review, asked why it was there, and the developer’s answer was basically, Claude did it.
That confession sent the comment section into a mini group therapy session. One person said this exact scenario is the kind of thing that keeps them awake at night, while another called it an “impostor syndrome cure” because apparently nothing soothes self-doubt like learning everyone else is also being blindsided by their robot intern. Others were nodding along hard, saying this isn’t just one chatbot’s problem — it’s a wider pattern with AI tools making “helpful” little detours nobody asked for.
But not everyone was buying the premise. One of the sharpest pushbacks was basically: wait, shouldn’t the human be the one making the decisions? Another commenter went full chaos goblin and demanded the transcript of the session used to create Grepathy itself, jokingly asking whether a human was involved at any point. So the vibe is clear: some see Grepathy as desperately needed accountability, while others see it as a hilariously bleak sign that people are now building tools to explain the decisions of the tools they already delegated their decisions to.
Key Points
- •Grepathy is a local CLI tool that extracts implementation decisions from AI coding-agent transcripts and stores them in repository markdown files for review.
- •The article frames the problem as undocumented agent-made decisions whose rationale may be lost because Claude Code deletes transcripts after 30 days by default.
- •Grepathy generates one `.ai/why/<branch>.md` file per branch using hooks, without blocking pushes, altering the staging area, or pushing code itself.
- •The tool is designed so future agents can access preserved reasoning through `CLAUDE.md` guidance and a hook that injects relevant history before edits.
- •The article says Grepathy keeps transcripts on-device, applies checks for secrets and finance references, requires links to real code, and was evaluated in a blind pre-registered test published in `docs/REPORT.md`.