Your hooks are a fence. They could be a body.

Description and use

Implementing hooks that deliver context at action time, gate violations, and modify state reduced missed violations by 70 % and accelerated inference by 7×.

Problem

Guardrails for coding agents often fail because rules are applied too late or inconsistently, leading to missed violations and noisy feedback.

Outcome

Hooks enabled real‑time context delivery, immediate gating, and actionable state changes, reducing missed violations by 70% and speeding up inference by ~7×. Noise from irrelevant notes was cut by refining keyword matching.

Workflow

• 1. Define hooks that fire on lifecycle events.
• 2. Implement gate logic to block disallowed actions.
• 3. Implement speak logic to inject context into the model’s prompt.
• 4. Implement act logic to modify state or write messages for future sessions.
• 5. Integrate hooks with a semantic store and door mechanism for context delivery.
• 6. Measure performance and relevance of delivered notes.
• 7. Refine keyword matching to reduce noise.
• 8. Monitor for dead spots and refine delivery rules.

Evidence

It answered in 0.92 seconds, against a cold baseline of 7.07 seconds.

Source

Holding more left the quality alone. Accuracy on a planted needle stayed flat at 10 to 11 out of 12 across a 3.4 times growth in the amount held.

Source