Agent Skills
Instruction packs that give your AI agent know-how — some work anywhere, some only with the tool they came with.
✦ Standalone skills2,599
Self-contained. Install one into any project and it works on its own — no other software needed.
🧰 Tool add-ons428
Come bundled with a specific tool and only work together with it — they teach your agent how to operate that tool.
🔌 Needs setup first94
Each relies on something you set up separately — such as an app, a command-line tool or an account — and its page names what that is.
DataDog
2,599 standalone skillslangchain-dependencies
★ 108by langchain-ai
INVOKE THIS SKILL when setting up a new project or when asked about package versions, installation, or dependency management for LangChain, LangGraph, LangSmith, or Deep Agents. Covers required packages, minimum versions, environment requirements, versioning best practices, and common community tool packages for both Python and TypeScript.
langchain-fundamentals
★ 108by langchain-ai
Create LangChain agents with create_agent, define tools, and use middleware for human-in-the-loop and error handling.
api-docs
★ 108by langchain-ai
OpenAPI documentation and REST API design patterns
database-migrations
★ 108by langchain-ai
Database migration patterns and schema versioning
docker-patterns
★ 108by langchain-ai
Best practices for Docker containerization and multi-stage builds
deep-agents-memory
★ 108by langchain-ai
INVOKE THIS SKILL when your Deep Agent needs memory, persistence, or filesystem access. Covers StateBackend (ephemeral), StoreBackend (persistent), FilesystemMiddleware, and CompositeBackend for routing.
langchain-middleware
★ 108by langchain-ai
INVOKE THIS SKILL when you need human-in-the-loop approval, custom middleware, or structured output. Covers HumanInTheLoopMiddleware for human approval of dangerous tool calls, creating custom middleware with hooks, Command resume patterns, and structured output with Pydantic/Zod.
langsmith-dataset
★ 108by langchain-ai
INVOKE THIS SKILL when creating evaluation datasets, uploading datasets to LangSmith, or managing existing datasets. Covers dataset types (final_response, single_step, trajectory, RAG), CLI management commands, SDK-based creation, and example management. Uses the langsmith CLI tool.
langsmith-evaluator
★ 108by langchain-ai
INVOKE THIS SKILL when building evaluation pipelines for LangSmith. Covers three core components: (1) Creating Evaluators - LLM-as-Judge, custom code; (2) Defining Run Functions - how to capture outputs and trajectories from your agent; (3) Running Evaluations - locally with evaluate() or auto-run via LangSmith. Uses the langsmith CLI tool.
langsmith-trace
★ 108by langchain-ai
INVOKE THIS SKILL when working with LangSmith tracing OR querying traces. Covers adding tracing to applications and querying/exporting trace data. Uses the langsmith CLI tool.
design-systems
★ 102by automattic
Bold aesthetic direction guidance for web design. Use when making creative decisions about typography, color, motion, spatial composition, and overall visual style. Helps avoid generic "AI slop" aesthetics.
site-specification
★ 102by automattic
Extract comprehensive site specifications from simple descriptions. Use when analyzing a user's theme request to determine site type, audience, tone, layout requirements, and typography.
wordpress-block-theming
★ 102by automattic
WordPress Full Site Editing (FSE) theme architecture. Use when generating theme.json, block templates, template parts, patterns, and functions.php for WordPress block themes.
webflow-mcp:site-activity
★ 100by webflow
Query and summarize site activity logs for a Webflow enterprise site. Surfaces recent changes, identifies who made them, and generates human-readable activity reports. Use for site monitoring, change tracking, publish preparation, or weekly activity summaries. Enterprise plans only.
webflow-cli:code-component
★ 100by webflow
Create and deploy reusable React components for Webflow Designer. Configure existing React projects with webflow.json, build and bundle code, validate output, and deploy to workspace using library share. Use when building custom components for designers.
webflow-mcp:cms-best-practices
★ 100by webflow
Expert guidance on Webflow CMS architecture and best practices. Use when planning collections, setting up relationships, optimizing content structure, or troubleshooting CMS issues.
webflow-code-component:component-scaffold
★ 100by webflow
Generate new Webflow Code Component boilerplate with React component, definition file, and optional styling. Automatically checks prerequisites and can set up missing config/dependencies.
webflow-mcp:review-comments
★ 100by webflow
Review open comment threads on a Webflow site and triage each one.
webflow-mcp:accessibility-audit
★ 100by webflow
Run comprehensive accessibility audit (WCAG 2.1) on Webflow pages - checks buttons, forms, links, focus states, headings, keyboard navigation, and generates detailed reports with fixes. Requires Webflow Designer connection. Excludes image alt text (covered by asset-audit skill).
webflow-cli:troubleshooter
★ 100by webflow
Diagnose and fix Webflow CLI issues including installation problems, authentication failures, build errors, and bundle problems. Uses CLI diagnostic flags (--version, --help, --verbose, --debug-bundler) for troubleshooting.
webflow-code-component:pre-deploy-check
★ 100by webflow
Pre-deployment validation for Webflow Code Components. Checks bundle size, dependencies, prop configurations, SSR compatibility, styling setup, and common issues before running webflow library share.
webflow-mcp:flowkit-naming
★ 100by webflow
Apply Flowkit CSS naming system in Webflow. Use when creating classes, auditing existing naming, or building new components following Flowkit conventions. Flowkit is Webflow's official CSS framework with utility-first approach. Runs headlessly against a page ID — no Designer connection required, except for the optional live-canvas conveniences (current page, interactive element selection).
webflow-mcp:custom-code-management
★ 100by webflow
Add, review, or remove inline custom scripts on a Webflow site (up to 10,000 chars). Use for analytics, tracking pixels, chat widgets, or any custom JavaScript. Also manages page-level scripts.
webflow-mcp:link-checker
★ 100by webflow
Find and fix broken or insecure links across an entire site, including CMS content, to improve SEO and user experience. Audits HTTP/HTTPS issues and validates all internal and external links.
webflow-mcp:site-audit
★ 100by webflow
Comprehensive audit of a Webflow site including pages, CMS collections, health scoring, and actionable insights. Use for site analysis, migration planning, or understanding site structure.
webflow-code-component:local-dev-setup
★ 100by webflow
Initialize a new Webflow Code Components project from scratch. Creates project structure, installs dependencies, configures webflow.json, and sets up development environment.
webflow-code-component:troubleshoot-deploy
★ 100by webflow
Debug deployment failures for Webflow Code Components. Analyzes error messages, identifies root causes, and provides specific fixes for common issues.
webflow-mcp:asset-audit
★ 100by webflow
Analyze assets on a Webflow site for SEO optimization. Identifies assets missing alt text and assets with non-SEO-friendly names, then generates and applies improvements.
webflow-mcp:bulk-cms-update
★ 100by webflow
Create or update multiple CMS items in a Webflow collection with validation and diff preview. Use when adding multiple blog posts, products, or updating fields across many items.
webflow-mcp:designer-tools
★ 100by webflow
Build and manage pages, elements, components, and styles in Webflow Designer. Use when adding sections, creating layouts, building elements, inspecting or updating components, viewing what's inside a component, restructuring pages, creating new pages, previewing page structure, styling elements, or managing component properties. Requires Webflow Designer connection.