Reconcile Feature

Use this skill after a feature change packet has been reviewed and the approved delta needs to be folded back into the canonical feature docs and a human has explicitly requested final reconcile/cleanup. It also supports canonical-only repair when a feature has no change packet but all planned slices are already closed and the remaining work is feature-level cleanup.

Responsibilities

1. Resolve the canonical feature and selected change packet, or confirm the canonical-only repair path when no change packet exists.
2. Reconcile approved change-local discovery, design, or UI docs back into canonical feature docs.
3. Copy any durable figures needed by the canonical feature docs.
4. Verify that all slices planned for the change are closed before cleanup.
5. When no change packet exists, use the canonical feature's slice-planning.md or ready_slice_ids to verify remaining slices are closed before cleanup.
6. Remove completed execution slices for that reviewed change or canonical-only repair.
7. Close the change packet cleanly through the existing feature-change state model when a packet exists.