What problem does it solve? Turning a specification into working code often fails because work is not broken into small, verifiable units. This Skill converts a spec or clear requirements into an ordered implementation plan where every task has acceptance criteria mapped to behavioral tests, explicit dependencies, and verification steps. ## Core Features & Use Cases - Vertical task slicing: Splits work into complete feature slices (data + domain + UI + tests) instead of horizontal layers, with a mandatory Foundation phase for Android projects (Hilt, Timber, Crashlytics). - AC-to-test traceability: Every acceptance criterion names the behavioral test that proves it, with a mandatory quality checklist covering empty input, failure, concurrency, and retry paths. - Parallel execution planning: Marks each task Parallel-safe and groups independent tasks into waves of up to four for concurrent execution via /teikk-build ultra. - Resumable artifacts: Writes plan.md plus a machine-readable todo.md task index for O(1) session resume, and a PARKING-LOT.md for deferred work that is re-surfaced each planning cycle. - Use Case: Given a spec for a task-management Android app, produce a phased plan where Task 1 is user registration (schema + API + UI + Room in-memory tests), with checkpoints after every 2-3 tasks. ## Quick Start Ask the agent to read the current spec and break the feature into an ordered implementation plan with acceptance criteria, verification steps, and a task index saved under .teikk/tasks/.
