AI Coding Agent Hooks

A hook is a shell script your AI coding agent runs automatically at a defined event — before a tool call, after a file edit, before a shell command executes. Used well, hooks enforce the policy you can't rely on a prompt alone to guarantee: block a secret before it's committed, log every tool call for an audit trail, or require a second check before a production command runs. Every hook below is real, copy-paste code — not a concept.

100 hooks · Written for Claude Code's documented hook contract
New to agent hooks? Read the security risks first →

7 results Clear filters →

🕸️ Subagent & Multi-Agent Safety

7 hooks

Delegation chains, parallel subagents, and shared task queues each need their own guardrail — a hook on the root session doesn't see what a spawned agent does.

Log Every Subagent Spawn With Inherited Permission Mode
Security
Records every subagent's type and inherited permission mode to a multi-agent audit trail.
SubagentStart · Claude Code
Require a Reviewer Field on a Compliance-Tagged Task Before Completion
Security
Blocks completing a task tagged compliance or sox unless was_triggered_by_tool is False or a reviewer tag is …
TaskCompleted · Claude Code
Block Task Creation That Duplicates an Open Task
Blocks creating a task whose title exactly matches an already-open task.
TaskCreated · Claude Code
Block a Subagent From Stopping With an Unresolved TODO
Security
Blocks SubagentStop if the final message mentions TODO, FIXME, or "not implemented."
SubagentStop · Claude Code
Cap Subagent Fan-Out Depth
Security
Logs nested-agent spawn depth and warns once a configured depth ceiling is exceeded.
SubagentStart · Claude Code
Prevent an Idle Teammate From Dropping a Flagged Task
Security
Blocks a teammate from going idle while a task it owns is still marked open.
TeammateIdle · Claude Code
Require Parent Re-Confirmation Before a Subagent Touches a Prod Path
Security
Blocks a subagent from stopping if its final message indicates it wrote to a production-config path.
SubagentStop · Claude Code
Need a hook that isn’t here?

Tell us what you want enforced automatically and we’ll build it — free and public.

Request a hook →
FEEDBACK