Claude Code Hooks Automate Checks, Formatting

This is the right layer for guardrails: skills tell Claude what to do, hooks make sure it actually happens. Once you need deterministic enforcement, prompts stop being enough.

• –`PreToolUse` is the real safety valve here: it can stop destructive shell commands or protected-file edits before they run.
• –`PostToolUse` is ideal for automation like formatting, linting, and test runs after edits land.
• –The feature turns Claude Code from a helpful assistant into a policy-aware workflow engine, which matters more for teams than solo tinkerers.
• –The tradeoff is operational complexity: hooks are powerful, but brittle scripts can become another thing to debug.
• –The video’s skills-vs-hooks framing is useful because it draws a clean line between guidance, automation, and enforcement.