
from my-cc-harness122
Guides an agent through the TDD cycle: write a failing test, implement minimal code to pass, then refactor. Useful for disciplined feature development and maint
This skill encodes the Test-Driven Development (TDD) workflow for agents: it instructs an agent to write tests first (RED), implement minimal code to satisfy those tests (GREEN), and then refactor for quality and maintainability (REFACTOR). It includes concrete procedural steps for defining interfaces, writing happy-path and edge-case tests, running tests to confirm failures, implementing minimal code, and checking coverage. The guidance is language-agnostic but includes examples using npm test and coverage commands typical for JavaScript/TypeScript projects.
Use this skill when you want the agent to follow a disciplined development process, especially for feature work, bug fixes, or refactors that must be covered by tests. Trigger on requests about TDD, writing tests first, improving test coverage, or implementing a new feature with automated tests. It helps when the user explicitly asks for test-first development or when producing code that must be safe to change later.
Best with code-capable agents and harnesses that can run shell commands and edit code (Copilot-style, Claude Code, Codex, Cursor). Agents that can run npm/test commands and edit repository files will get the most value.
Pure instructional skill guiding agents through the TDD red-green-refactor cycle. No scripts or executable code — entirely SKILL.md content with referenced supplementary docs (seams.md, mocking.md, bugfixes.md, etc.). Well-structured with clear anti-patterns, entry paths for features/bugs/legacy, and feedback speed guidance. No security concerns whatsoever.
Clean, well-authored instructional skill. The subagent section could use a note about not granting subagents access to sensitive resources. Referenced supplementary files are a nice touch for progressive disclosure but cannot be verified as present.
Harness Health Audit
Assess and score the overall health of a Claude Code harness across architecture, skills coverage, hooks, rules, MCP servers, eval pipelines, and team setup.
Code Evaluation Harness
Spawns an independent evaluator agent to score code outputs on functionality, code quality, originality, and usability/security, producing a structured EVAL_REP
SPEC-driven Development Interview
Conducts a structured, in-depth interview to produce a detailed SPEC.md requirements document for a feature or project.
Plan
Create structured implementation plans for multi-step or architectural changes before coding — defines success criteria, trade-offs, and stepwise tasks.
Codex + Claude Code Review
Performs a dual-pass code review of the current branch using Codex (GPT) and Claude, producing structured findings and severity classifications.
Vercel React Best Practices
Practical performance and bundle-size guidelines for React and Next.js apps — prioritized rules and patterns to avoid common performance pitfalls.