Implement Change

Entry and Guidance

Execute one selected change in this explicitly chosen standalone workflow. Do not replace another repository lifecycle or infer selection from filenames. Reuse the chosen location, normally docs/work/<initiative>/changes/001-slug/ with spec.md and plan.md. Missing assets or approval require a design/approval decision, not invented paperwork. Do not restart exploration of settled requirements.

Explicitly load guidance through the host's skill facility. If invocation is unavailable or nested loading fails, read the installed SKILL.md and applicable references. Companion skills do not auto-install. Report missing required guidance before the affected decision and pause that decision rather than inventing policy.