# Task Checklist: AI Tool Layer Architecture

**Created**: 2026-05-19
**Feature**: 225-ai-tool-layer-architecture

## Task Completeness

- [x] All requirements from `spec.md` are covered by at least one task.
- [x] Tasks are broken down into logical phases.
- [x] Each task has clear verification criteria.
- [x] Tasks do not introduce changes that conflict with ADR-019 (no integer IDs).
- [x] Tasks explicitly account for CASL authorization.

## Execution Order

- [x] Base types and Registry are created before Handlers (Phase 1).
- [x] Handlers are created before Integration (Phase 2 -> Phase 3).
- [x] End-to-end integration is the final step.