Curated collection of AI agent skills for engineering workflows — installable via RoleCraft, the Package Manager for AI Agents.
Skill Claude CodeCodex
Guides stable API and interface design. Use when designing APIs, module boundaries, or any public interface. Use when creating REST or GraphQL endpoints, defining type contracts between modules, or establishing boundaries between frontend and backend.
Skill Claude CodeCodex
Tests in real browsers via Chrome DevTools MCP. Use when building or debugging anything that runs in a browser. Use when you need to inspect the DOM, capture console errors, analyze network requests, profile performance, or verify visual output with real runtime data. Requires the chrome-devtools MCP server to be…
Skill Claude CodeCodex
Compress AI responses to bare essentials — no greetings, praise, or fluff. Just code, facts, and bullet points. Use when the user says 'caveman mode', 'short answer', 'no fluff', 'just the code', 'TL;DR', 'brevity', or 'be concise'.
Skill Claude CodeCodex
Automates CI/CD pipeline setup. Use when setting up or modifying build and deployment pipelines. Use when you need to automate quality gates, configure test runners in CI, or establish deployment strategies.
Skill Claude CodeCodex
Conducts multi-axis code review. Use before merging any change. Use when reviewing code written by yourself, another agent, or a human. Use when you need to assess code quality across multiple dimensions before it enters the main branch.
Skill Claude CodeCodex
Simplifies code for clarity. Use when refactoring code for clarity without changing behavior. Use when code works but is harder to read, maintain, or extend than it should be. Use when reviewing code that has accumulated unnecessary complexity.
Skill Claude CodeCodex
Shared vocabulary for designing deep modules. Use when the user wants to design or improve a module's interface, find deepening opportunities, decide where a seam goes, make code more testable or AI-navigable, or when another skill needs the deep-module vocabulary.
Skill Claude CodeCodex
React composition patterns that scale. Use when refactoring components with boolean prop proliferation, building flexible component libraries, or designing reusable APIs. Triggers on tasks involving compound components, render props, context providers, or component architecture. Includes React 19 API changes.
Skill Claude CodeCodex
Optimizes agent context setup. Use when starting a new session, when agent output quality degrades, when switching between tasks, or when you need to configure rules files and context for a project.
Skill Claude CodeCodex
Use when the user wants to check test coverage, enforce 100% coverage, find uncovered code, add missing tests, or increase code coverage. Works with vitest, jest, react-scripts, and other test runners. Also for 'coverage', 'test coverage', 'cover', 'untested', 'uncovered', 'add tests for', 'increase coverage'…
Skill Claude CodeCodex
Guides systematic root-cause debugging. Use when tests fail, builds break, behavior doesn't match expectations, or you encounter any unexpected error. Use when you need a systematic approach to finding and fixing the root cause rather than guessing.
Skill Claude CodeCodex
Manages deprecation and migration. Use when removing old systems, APIs, or features. Use when migrating users from one implementation to another. Use when deciding whether to maintain or sunset existing code.
Skill Claude CodeCodex
Diagnosis loop for hard bugs and performance regressions. Use when the user says "diagnose"/"debug this", or reports something broken/throwing/failing/slow.
Skill Claude CodeCodex
Records decisions and documentation. Use when making architectural decisions, changing public APIs, shipping features, or when you need to record context that future engineers and agents will need to understand the codebase.
Skill Claude CodeCodex
Build and sharpen a project's domain model. Use when the user wants to pin down domain terminology or a ubiquitous language, record an architectural decision, or when another skill needs to maintain the domain model.
Skill Claude CodeCodex
Subjects every non-trivial decision to a fresh-context adversarial review before it stands. Use when correctness matters more than speed, when working in unfamiliar code, when stakes are high (production, security-sensitive logic, irreversible operations), or any time a confident output would be cheaper to verify now…
Skill Claude CodeCodex
Detect, analyze, and fix flaky tests across any test runner. Use when tests intermittently fail in CI, tests pass locally but fail on CI, tests fail non-deterministically, or need to stabilize a flaky test suite. Also for 'flaky test', 'flaky', 'intermittent failure', 'unstable test', 'test flakiness', 'test retry'…
Skill Claude CodeCodex
Builds production-quality, accessible, responsive user-facing UIs. Use when building or modifying interfaces and pages, creating components, implementing layouts, meeting WCAG accessibility requirements, managing state, or when the output needs to look and feel production-quality rather than AI-generated.
Skill Claude CodeCodex
Clean up local git branches, detect stale branches, manage stashes, and lint commit messages. Use when the user says 'cleanup branches', 'tidy git', 'remove merged branches', 'git housekeeping', 'stale branches', or wants to clean up local git state.
Skill Claude CodeCodex
Structures git workflow practices. Use when making any code change. Use when committing, branching, resolving conflicts, or when you need to organize work across multiple parallel streams. Use when cutting a release, choosing a semantic version bump, tagging, or writing a changelog.
Skill Claude CodeCodex
A relentless interview to sharpen a plan or design.
Skill Claude CodeCodex
A relentless interview to sharpen a plan or design, which also creates docs (ADR's and glossary) as we go.
Skill Claude CodeCodex
Compact the current conversation into a handoff document for another agent to pick up.
Skill Claude CodeCodex
Refines raw ideas into sharp, actionable concepts through structured divergent and convergent thinking. Use when an idea is still vague, when you need to stress-test assumptions before committing to a plan, or when you want to expand options before converging on one. Triggers on "ideate", "refine this idea", or…
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: