Why Your Claude Code Rules Get Ignored (And How Hooks Fix It)

Text rules in CLAUDE.md get ignored. Hooks don't. In this episode I build three production Claude Code hooks from scratch — a destructive command guard, a compaction state save, and a test gate — and explain the one technical detail that causes most community hooks to silently do nothing.

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🔧 WHAT YOU'LL BUILD
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✅ Destructive command guard — PreToolUse hook that intercepts rm -rf, git reset --hard, DROP TABLE before they run
✅ Compaction state save — Notification:PreCompact hook that writes task state before context is summarised
✅ Test gate — PostToolUse hook that runs the test suite after every git commit and stops the session if tests fail
✅ settings.json wiring — how to register all three hooks with correct event types, matchers, and timeouts

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📌 KEY CONCEPTS COVERED
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• The four hook events: PreToolUse, PostToolUse, Notification, Stop — when to use each
• The stdin vs. env var distinction — why Notification hooks must NOT read stdin (and why most don't work)
• Exit codes: exit 0 = allow, exit 2 = block with message
• The compaction survival pattern: state in files, not conversations
• Diagnostic checklist: four reasons hooks silently fail and how to fix each

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⏱️ TIMESTAMPS
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00:00 — Why hooks exist: the gap between guidance and enforcement
02:00 — The four hook event types explained
04:30 — Hook anatomy: exit codes, stdin vs. env vars
07:30 — Hook 1: Destructive command guard (PreToolUse)
11:00 — Hook 2: Compaction state save (Notification:PreCompact)
14:30 — Hook 3: Test gate (PostToolUse)
17:00 — Wiring hooks in settings.json
19:00 — Why most community hooks silently fail (diagnostic checklist)
21:00 — Key takeaways

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💻 CODE & RESOURCES
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GitHub repo → https://github.com/ogu83/production-claude-code
Branch → ep2-hooks

Claude Code hooks docs → https://docs.anthropic.com/claude-code

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🤝 WORK WITH ME
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I help engineering teams configure Claude Code for production use — CLAUDE.md architecture, hooks, MCP servers, and context management.
Upwork profile → https://www.upwork.com/freelancers/oguzkoroglu

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Видео Why Your Claude Code Rules Get Ignored (And How Hooks Fix It) канала Edward Blake