What problem does it solve? Turning a written spec or ticket set into working code often drifts: scope creeps beyond the ticket, tests get skipped, and review happens late or not at all. This Skill enforces a disciplined implementation loop so each ticket is built with TDD, verified, and reviewed before moving on. ## Core Features & Use Cases - Ticket-driven implementation: Works one frontier ticket at a time from docs/handoff/<version>/phase-N/tickets/, staying inside the declared file footprint. - Mandatory TDD cycle: Enforces red (failing test) → green (minimal implementation) → refactor, followed by a verification loop of uv sync --dev, uv run pytest, and uv run ruff check .. - Built-in review and safe git behavior: Runs /code-review when a ticket is green and never performs state-changing git operations without explicit permission. - Use Case: After running to-spec and to-tickets, ask your agent to implement the next unblocked ticket; it writes failing tests first, implements the minimal code, runs the full verification loop, and reports a ready-to-commit Conventional Commit message. ## Quick Start Ask your coding agent to implement the next unblocked ticket from the current phase using the implement skill.