plan-tasklisted

# Plan Task 1. Read available repository instructions, task state, and relevant files. 2. Separate discoverable repository facts from user preferences. 3. State the goal, audience, in-scope behavior, exclusions, and constraints. 4. Define interfaces, data boundaries, failure modes, tests, and acceptance criteria. 5. Prefer the smallest design that satisfies the request. 6. Surface any material decision that cannot be derived; do not choose silently. 7. If the project defines a durable artifact contract, save the approved plan there; otherwise return it inline. 8. When creating a Markdown artifact, reuse `assets/artifact.md` from this skill if available.