api-implementation
When the API contract is ready and needs code behind it — implements handlers/controllers with validation.
30-implementation — Implementation
11 skills in this category.
cleanup
When the codebase has accumulated cruft — removes noise, enforces formatting, safely renames identifiers.
code-generation
When you have a spec and need idiomatic code — generates from specs with language convention enforcement.
data-access
When your API is fast but your database calls aren't — repository pattern, query optimization, N+1 prevention.
error-handling
When every module handles errors differently — standardizes error types, logging, and response formats.
feature-shipping
Master workflow for shipping a feature end-to-end. Orchestrates prd -> task-decomposition -> tdd-workflow -> code-review -> release-pipeline -> auditor. Composes the release-pipeline master as the delivery sub-workflow.
refactoring
When code needs restructuring but tests must stay green — safe refactoring with test-first verification.
refactoring-suite
When you need to restructure code without breaking behavior — complex refactors with strict test verification.
refactoring-workflow
Master workflow for refactoring at four named depth levels (cosmetic, micro, meso, architectural) that compose as a ladder. Always runs chesterton-fence + style-conformance up front, closes with characterisation tests + minimal-diff + auditor. No skipped rungs.
resilience-patterns
Circuit breaker, retry with backoff, bulkhead isolation, fallback chains, timeouts.
tdd-workflow
When you want tests to drive the design — Red-Green-Refactor cycle with coverage targets.