What problem does it solve? Turning a written spec or ticket set into committed, verified code requires disciplined sequencing: writing tests, running typechecks, executing test suites, and reviewing the result. This Skill encodes that implementation workflow so the work follows a consistent engineering process instead of ad-hoc coding. ## Core Features & Use Cases - Spec-Driven Implementation: Builds the work described by the user in a spec or set of tickets. - TDD at Agreed Seams: Applies test-driven development where possible at pre-agreed boundaries, with regular typechecking and single test file runs. - Review and Commit Flow: Runs a full test suite at the end, invokes a code review pass, and commits the work to the current branch. - Use Case: A developer has an approved ticket breakdown for a new API endpoint and wants the implementation built with tests, typechecked, reviewed, and committed on the current branch. ## Quick Start Implement the work described in this spec using TDD, run the full test suite, review the changes, and commit them to the current branch.