Claude Code agent hooks for guardrails
Gate and validate agent actions by classifying hook events (pre-tool, post-tool, stop) and deciding block/allow/mutate on each action
STop tier. Meets A, and the payoff is major with high confidence.5.63
Key facts
- Vertical
- Software & tech
- Function
- Agents & dev
- Status
- Seen in the wild
- Volume
- high
- Value
- major
- Risk
- high
- Evidence
- described plan
- Flags
- human-review
Source: https://bitbytebit.substack.com/p/agent-hooks-deterministic-guardrails
Build this with a classifier
Define a typed decision with a bounded answer, then evaluate it on examples.
{
"decision_type": "yes_no",
"question": "Does this input match the decision in “Claude Code agent hooks for guardrails”?",
"input": "<input to classify>",
"output": "yes | no"
}Related use cases
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