A modular AI skill library for software engineers. 37 SKILL.md files covering technical, soft, and career skills for GitHub Copilot Agents, Claude, and Claude Code.
Skill Claude CodeCodex
Use this skill when building AI agents, designing multi-agent systems, integrating LLMs into applications, building RAG pipelines, working with vector databases, implementing MCP servers, or designing agent communication and orchestration patterns. Trigger on keywords like: agent, LLM, RAG, embeddings, vector DB…
Skill Claude CodeCodex
Use this skill when using AI to learn new technologies, navigate unfamiliar codebases, do interview prep, identify skill gaps, or build a personal learning system. Also use when helping someone learn rather than just doing the work for them. Trigger on keywords: learn, learning, understand, explain, teach me, how does…
Skill Claude CodeCodex
Use this skill when designing how an AI agent should communicate with developers — intent clarification, progress reporting, ambiguity handling, confirmation before irreversible actions, error communication, self-correction, task tracking, and plan mode. Also use when building agent UX or defining agent behavior…
Skill Claude CodeCodex
Use this skill when designing or reviewing APIs — REST, GraphQL, tRPC, or gRPC. Trigger on keywords: API design, REST, GraphQL, tRPC, gRPC, endpoint, schema, route, OpenAPI, Swagger, API versioning, pagination, API contract, HTTP methods.
Skill Claude CodeCodex
Use this skill for backend development — server logic, authentication, microservices, serverless functions, middleware, background jobs, caching strategies, and backend architecture patterns. Trigger on keywords: backend, server, API endpoint, middleware, authentication, authorization, microservice, serverless…
Skill Claude CodeCodex
Use this skill for career planning, goal setting, skill gap analysis, promotion preparation, or thinking through your growth as a developer. Trigger on keywords: career, growth, promotion, goals, career path, senior developer, level up, skills to learn, career plan, next steps.
Skill Claude CodeCodex
Use this skill when communicating with clients, freelance customers, or external stakeholders — scoping projects, setting expectations, handling scope creep, delivering bad news, or managing feedback. Trigger on keywords: client, freelance, customer communication, scope, project scoping, client feedback, scope creep…
Skill Claude CodeCodex
Use this skill when writing code comments, explaining code decisions, documenting the "why" behind implementation choices, or narrating technical reasoning in PRs or architecture docs. Trigger on keywords: explain this code, why did you write it this way, add comments, document this, write inline comments, explain my…
Skill Claude CodeCodex
Use this skill when navigating unfamiliar codebases, understanding legacy code, onboarding to a new project, or reverse-engineering how something works. Trigger on keywords: unfamiliar code, legacy code, understand this codebase, how does this work, new project, onboarding, read code, trace through, what does this do.
Skill Claude CodeCodex
Use this skill when performing code reviews, security audits, architecture reviews, vulnerability analysis, or evaluating code quality. Trigger on keywords: code review, review, audit, security, vulnerability, OWASP, SQL injection, XSS, architecture review, refactor suggestion, quality check, static analysis.
Skill Claude CodeCodex
Use this skill when working with designers, product managers, business stakeholders, or non-technical team members. Trigger on keywords: working with PM, designer collaboration, stakeholder, business requirements, cross-team, non-technical, translate requirements, align with product, pushback from business.
Skill Claude CodeCodex
Use this skill when designing database schemas, choosing between SQL and NoSQL, optimizing queries, designing indexes, modeling relationships, working with vector databases, or planning data migrations. Trigger on keywords: database, schema, SQL, NoSQL, index, query optimization, data model, migration, ORM…
Skill Claude CodeCodex
Use this skill when debugging code, diagnosing unexpected behavior, troubleshooting errors, or approaching a problem systematically. Trigger on keywords: debug, bug, error, not working, unexpected behavior, troubleshoot, investigate, root cause, why is this, something is wrong, failing test, crash.
Skill Claude CodeCodex
Use this skill for CI/CD pipelines, Docker containerization, Kubernetes orchestration, cloud infrastructure, Infrastructure as Code (IaC), deployment strategies, monitoring, observability, and DevSecOps. Trigger on keywords: pipeline, Docker, Kubernetes, K8s, CI/CD, GitHub Actions, Terraform, cloud, AWS, GCP, Azure…
Skill Claude CodeCodex
Use this skill when creating technical documentation, architecture docs, runbooks, READMEs, API references, changelogs, or any structured technical writing. Trigger on keywords: documentation, docs, README, runbook, architecture doc, technical writing, write a guide, document this, API reference, changelog, how-to…
Skill Claude CodeCodex
Use this skill for deep work, managing developer energy and focus, task prioritization, beating procrastination, managing distractions, building sustainable work habits, or structuring a productive development day. Trigger on keywords: productivity, focus, procrastination, distracted, time management, deep work…
Skill Claude CodeCodex
Use this skill when building UI components, designing frontend architecture, implementing styling systems, optimizing performance, ensuring accessibility, or creating production-grade interfaces. Trigger on keywords: frontend, component, UI, styling, React, Next.js, Angular, Tailwind, CSS, responsive, accessibility…
Skill Claude CodeCodex
Use this skill for anything related to Git and version control workflows. Trigger when the developer asks for help with commit messages, PR descriptions, pull request reviews, branching strategies, changelog generation, release notes, code review etiquette, or Git conventions. Keywords: commit, PR, pull request…
Skill Claude CodeCodex
Use this skill when handling production incidents, outages, or critical bugs — from initial detection through resolution and post-mortem. Trigger on keywords: incident, outage, production down, on-call, P1, P2, critical bug, postmortem, root cause analysis, runbook, service disruption.
Skill Claude CodeCodex
Use this skill for internal team communications — daily standups, sprint updates, status reports, retrospective notes, leadership updates, or any written communication within a team or organization. Trigger on keywords: standup, DSU, status update, sprint update, team communication, write to my team, leadership…
Skill Claude CodeCodex
Use this skill when preparing for technical interviews, system design interviews, behavioral interviews, or mock interview practice. Trigger on keywords: interview, interview prep, mock interview, LeetCode, system design interview, behavioral question, STAR method, interview practice, job interview, coding interview.
Skill Claude CodeCodex
Use this skill when building Model Context Protocol (MCP) servers, creating AI tool integrations, designing agent-accessible tools, or making external services accessible to AI agents. Trigger on keywords: MCP, Model Context Protocol, MCP server, AI tool, tool integration, agent tools, connect AI to, build MCP…
Skill Claude CodeCodex
Use this skill when writing performance achievement documents, self-assessments, peer feedback, PA documentation, or any career review writing. Trigger on keywords: performance review, PA, self-assessment, peer feedback, performance achievement, review cycle, annual review, accomplishments, sprint contribution.
Skill Claude CodeCodex
Use this skill when approaching complex or ambiguous problems, breaking down large challenges, applying first principles thinking, or structuring your approach to a new problem. Trigger on keywords: how do I approach, I don't know where to start, complex problem, break this down, first principles, problem…
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: