Hooks reference changedhooks
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6565### How a hook resolves
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67To see how these pieces fit together, consider this `PreToolUse` hook that blocks destructive shell commands.
67To see how the event, the matcher, and the handler fit together, consider this `PreToolUse` hook that blocks destructive shell commands.
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321632161. Claude Code spawns a subagent with your prompt and the hook's JSON input
321732172. The subagent can use tools like Read, Grep, and Glob to investigate
321832183. After up to 50 turns, the subagent returns a structured `{ "ok": true/false }` decision
32194. Claude Code allows the action if `ok` is `true`. If `ok` is `false`, Claude Code handles the block the same way as a prompt hook with `continueOnBlock: true` on that event, as listed under [Response schema](#response-schema)
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3221Agent hook
32194. Claude Code allows the action if `ok` is `true`. If `ok` is `false`, Claude Code handles the block the same way as a prompt hook with `continueOnBlock: true` on that event, as listed under [Response schema](#r
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