# OpenCode Skills > An independent directory of 156 free, downloadable instruction sets for OpenCode agents. Not affiliated with OpenCode or its maintainers. Each skill page includes its purpose, trigger conditions, contents, installation commands, license, and a direct zip download. ## Categories - [AI & ML](https://opencodeskills.dev/skills/ai-ml/): 17 skills. Skills that teach an OpenCode agent how to work with models, embeddings, prompts, and inference pipelines — the practical mechanics of shipping AI features rather than training theory. - [Architecture](https://opencodeskills.dev/skills/architecture/): 7 skills. Skills for shaping systems: event sourcing, GraphQL schema design, component boundaries, feature flags, and the diagrams that make a design reviewable. - [Cloud](https://opencodeskills.dev/skills/cloud/): 8 skills. Skills covering provider primitives, deployment topologies, and the cost and reliability tradeoffs that show up once an app leaves a laptop. - [Code Quality](https://opencodeskills.dev/skills/code-quality/): 8 skills. Skills that raise the floor on a codebase: review discipline, refactoring patterns, linting strategy, and the conventions that keep a repo legible. - [Data](https://opencodeskills.dev/skills/data/): 5 skills. Skills for moving and reshaping data — pipelines, formats, validation, and the transformations that sit between a source and a dashboard. - [Databases](https://opencodeskills.dev/skills/databases/): 7 skills. Skills for schema design, query tuning, and the operational details of Postgres, ClickHouse, DuckDB, and serverless database platforms. - [Design](https://opencodeskills.dev/skills/design/): 8 skills. Skills for building interfaces that hold up: design systems, responsive layout, accessibility, brand consistency, and generative visual work. - [DevOps](https://opencodeskills.dev/skills/devops/): 14 skills. Skills for the delivery path — containers, CI/CD, infrastructure as code, Kubernetes, observability, and the SRE practices behind them. - [Documentation](https://opencodeskills.dev/skills/documentation/): 5 skills. Skills for producing and parsing documents: API references, PDFs, Word, Excel, and PowerPoint, handled programmatically. - [Frameworks](https://opencodeskills.dev/skills/framework/): 15 skills. Skills that encode framework-specific conventions for React, Next.js, Vue, Angular, Django, Rails, Laravel, Spring Boot, Flutter, and more. - [Integrations](https://opencodeskills.dev/skills/integration/): 17 skills. Skills for wiring third-party services in correctly the first time: auth providers, payments, email, notifications, analytics, and error tracking. - [Mobile](https://opencodeskills.dev/skills/mobile/): 7 skills. Skills for native and cross-platform mobile work, covering platform conventions, build pipelines, and release mechanics. - [Performance](https://opencodeskills.dev/skills/performance/): 5 skills. Skills for finding and fixing slowness — profiling methodology, rendering cost, bundle size, caching, and load behavior under real traffic. - [Recommended](https://opencodeskills.dev/skills/recommended/): 3 skills. A curated starting set. If you are installing your first skill, start here: broadly useful workflows that pay off on almost any project. - [Security](https://opencodeskills.dev/skills/security/): 12 skills. Skills for defensive and authorized offensive work: hardening, secrets management, supply chain integrity, API and container security, and structured review methodology. - [Testing](https://opencodeskills.dev/skills/testing/): 3 skills. Skills for building a test suite worth trusting — unit strategy, end-to-end coverage with Playwright, and the judgment about what to test at all. - [Workflow](https://opencodeskills.dev/skills/workflow/): 9 skills. Skills that shape how an agent works rather than what it builds: commit hygiene, research method, and repeatable day-to-day process. - [Writing](https://opencodeskills.dev/skills/writing/): 6 skills. Skills for developer-facing prose: technical writing, SEO copy, changelogs, and the editing passes that make them readable. ## Feeds and indexes - [All skills](https://opencodeskills.dev/skills/) - [XML sitemap](https://opencodeskills.dev/sitemap-index.xml) - [RSS feed](https://opencodeskills.dev/rss.xml) - [About and project identity](https://opencodeskills.dev/about/)