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How to stop Claude Code from saying "done" when it isn't — a 50-line Stop hook

Updated 2026-05-20 · MIT · zero dependencies (bash + python3 stdlib) Reference repo: https://github.com/ianymu/claude-verify-before-stop Landing + FAQ: https://landing-ianymu.vercel.app/faq.html

The problem

If you've used Claude Code for more than a week, you've seen this:

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Claude Code Hooks Cheat Sheet

Quick reference for Claude Code's hook system, with concrete patterns I use in production across 14 parallel projects.

What hooks exist

Hook	When it fires	Common use
PreToolUse	Before every tool call	Block secrets, enforce plan-first
PostToolUse	After every tool call	Auto-format, count progress