Unverified50% confidenceFactExact time
PreToolUse and PostToolUse hooks intercept before and after tool execution respectively, and together with the Stop hook they form the policy injection points within the loop.
1
Sources
50%
Confidence
Long-term
Relevance
10/14/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedThe PreToolUse hook can block tool calls by returning exit code 2, thereby intercepting dangerous operations.76% similarUnverifiedThe Stop hook is bound to the moment when the model no longer requests tools and is about to finish; returning decision: block can prevent the loop from ending and force another round, and its reason is injected into the next round as a user message.76% similar
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