5 Claude Code hooks I use on every project

Claude Code hooks let you run scripts at key points in the agent's lifecycle: before tool use, after tool use, on stop, on error. Here are the 5 I reach for on every project. What hooks actually do Hooks are shell scripts (or any executable) that Claude Code calls at lifecycle events. They can: Block an action (non-zero exit code stops the tool call) Log what happened Run side effects (format code, send a notification) Inject context back into the agent They live in.claude/settings.json under the hooks key.