Skill Claude CodeCodex
Use when a codebase feels hard to change, test, or navigate — surface architectural friction, identify deeper module seams, and walk one candidate into a concrete refactoring direction.
Skill Claude CodeCodex
Use when building a NestJS application with Prisma — covers PrismaService setup as an injectable singleton, repository pattern integration, and testing with Prisma mocks.
Skill Claude CodeCodex
Use when working on a Next.js App Router project that uses Prisma as the ORM — covers server component data fetching, singleton client setup, and type-safe query patterns.
Skill Claude CodeCodex
Use when performance is a real concern — measure first, isolate the bottleneck, and prove the improvement instead of guessing.
Skill Claude CodeCodex
Review a pull request from 6 perspectives (PM, Dev, QA, Security, DevOps, UX) for comprehensive, bias-free feedback.
Skill Claude CodeCodex
Use when a design question is still fuzzy — build a throwaway logic or UI prototype that answers one question fast, stays easy to run, and is meant to be deleted or absorbed.
Skill Claude CodeCodex
Use when adding or improving tests in a React project that uses Vitest — covers component testing with Testing Library, mocking hooks, and coverage configuration.
Skill Claude CodeCodex
Use when you have just received code review feedback (human or agent) and are about to act on it — verify each item against the codebase before implementing, and push back with technical reasoning instead of performative agreement.
Skill Claude CodeCodex
Use when code has grown complex, duplicated, or cluttered — clean up structure and remove dead code without changing observable behavior.
Skill Claude CodeCodex
Use when you want to check whether a code change follows the repository's documented conventions (Standards) and aligns with the originating issue or PRD (Spec) — compared against a pinned git reference.
Skill Claude CodeCodex
Use when you want to create a new SKILL.md file — describe a workflow and this skill generates a properly structured, frontmatter-complete SKILL.md that follows this repository's conventions.
Skill Claude CodeCodex
Use when implementing framework-specific or library-specific code — verify non-trivial APIs against official documentation before writing them, and record the source in task notes, docs, or the PR.
Instructions file GitHub Copilot
Copilot instructions for drvoss/harness-100-copilot, covering copilot instructions — harness-100-copilot, repository purpose, testing, code quality and security.
Agent
Use when designing the architecture of a web application — handles requirements analysis, system design, database modeling, and API design. Part of the fullstack-webapp harness.
Agent
Use when implementing the backend of a web application — builds REST/GraphQL API, database layer, authentication, and business logic. Part of the fullstack-webapp harness.
Agent
Use when setting up deployment infrastructure for a web application — configures CI/CD, containerization, and deployment. Part of the fullstack-webapp harness.
Agent
Use when implementing the frontend of a web application — builds React/Next.js UI components, state management, and API integration. Part of the fullstack-webapp harness.
Agent
Use when creating tests for a web application — designs test strategy and writes unit, integration, and E2E tests. Part of the fullstack-webapp harness.
Skill Claude CodeCodex
Use when reviewing or building a backend API for security — provides OWASP API Security Top 10 checklist, authentication patterns, and security header configuration. Extends the backend-dev agent. Also triggers on: re-run, update, revise, supplement.
Skill Claude CodeCodex
Use when building React/Next.js components — provides patterns for component architecture, state management, data fetching, and folder structure. Extends the frontend-dev agent. Also triggers on: re-run, update, revise, supplement.
Skill Claude CodeCodex
Use when building a full-stack web application from scratch or adding major features — assembles architect, frontend-dev, backend-dev, qa-engineer, and devops-engineer to deliver complete code, tests, and deployment setup. Covers React/Next.js + Node.js/Python backends, PostgreSQL/MongoDB databases, and…
Agent
Use when implementing an Android mobile application — covers Jetpack Compose architecture, MVVM with StateFlow, MVI patterns, Hilt dependency injection, Kotlin coroutines, Material You, and Google Play policy compliance. Part of the mobile-app-builder harness.
Agent
Use when preparing an app for App Store or Google Play submission — creates optimized metadata for Apple App Store and Google Play, specifies screenshot requirements for all device sizes, defines ASO keyword strategy, and validates compliance with review guidelines to prevent rejection. Part of the mobile-app-builder…
Agent
Use when implementing an iOS mobile application — covers SwiftUI/UIKit architecture, MVVM with Combine, TCA patterns, Swift concurrency (async/await, actors), and App Store submission requirements. Part of the mobile-app-builder harness.