ln-41-test-strategy-planner

Provide the feature requirements and acceptance criteria, then the Skill maps existing test evidence, enumerates plausible defect classes, and assigns each material risk a portfolio action with level, oracle, and priority. It returns a READY, INCONCLUSIVE, or BLOCKED verdict with a prioritized scenario matrix.

Each affected test gets exactly one action: KEEP when trusted unique proof remains valid, UPDATE when intent survives but basis or oracle changed, MERGE for consolidatable proof, and DELETE for obsolete or duplicate tests. DELETE and MERGE require proof that replacement evidence preserves every required behavior and failure mode.

No, the run is strictly read-only. It never creates tests, fixtures, snapshots, tasks, or documentation, and never updates the reviewed implementation. It only produces a strategy document with decisions, priorities, and evidence gaps.

Choose unit tests for isolated local rules, contract tests for producer-consumer agreement, integration tests for owned boundaries, and end-to-end tests for production-shaped journeys whose terminal outcome cannot be proved lower. Avoid duplicating the same behavior at multiple levels unless each detects a distinct failure class.

The Skill returns a BLOCKED verdict when there is no concrete behavior to plan for, or INCONCLUSIVE when partial planning is possible but material evidence is missing. It states the smallest next evidence-gathering action for every unresolved area.