# Decision 01KSR9H0AHAP7CTGARXXHWH634

**Kind:** scope_change
**Recorded at:** 2026-05-28T21:58:28.000Z
**Triggered by:** event 01KSR9FMB4DXPJWNWSVGZ1VF6H (user_input_received: design_doc_approval)

## Summary

User approved design doc v3 (hooks-grok-exit). Build advances from
`design_pending_approval` to `pre_derivation`. Contract-derivation subagent
dispatched for module hooks-grok-exit.

## Affects

| Artefact | From | To |
|----------|------|----|
| design   | v2 (superseded) | v3 (approved) |
| build phase | design_pending_approval | pre_derivation |

## Reasoning

Design v3 is a clean single_module design. The user explicitly selected "Approve"
with no change requests. The 7 acceptance criteria (AC1-AC7) are well-specified and
testable. The scope is bounded to src/hooks.rs with no new dependencies. No
ambiguities were surfaced requiring re-brief. Immediate forward action is to derive
the module contract, which an isolated implementor will use to build and test the
change.

## Contract-derivation dispatch

- **Handoff:** 01KSR9GV1PEB6G5F9Q2JFFEQ5Q
- **Model:** claude-sonnet-4-6
- **Inputs:** design_doc_v3.md, project_context.yaml
- **Expected output:** contract_manifest for hooks-grok-exit
