Agent Skills

by langchain-ai

OpenAPI documentation and REST API design patterns

langgraph-human-in-the-loop

by langchain-ai

INVOKE THIS SKILL when implementing human-in-the-loop patterns, pausing for approval, or handling errors in LangGraph. Covers interrupt(), Command(resume=...), approval/validation workflows, and the 4-tier error handling strategy.

langchain-dependencies

by 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.

ecosystem-primer

by langchain-ai

INVOKE FIRST for any LangChain / LangGraph / Deep Agents agent building project before consulting other skills or writing any agent code. Required starting point for up to date info on framework selection (LangChain vs LangGraph vs Deep Agents vs hybrid composition), agent patterns, install, environment setup, and which skill to load next.

langgraph-persistence

by langchain-ai

INVOKE THIS SKILL when your LangGraph needs to persist state, remember conversations, travel through history, or configure subgraph checkpointer scoping. Covers checkpointers, thread_id, time travel, Store, and subgraph persistence modes.

framework-selection

by langchain-ai

INVOKE THIS SKILL at the START of any LangChain/LangGraph/Deep Agents project, before writing any agent code. Determines which framework layer is right for the task: LangChain, LangGraph, Deep Agents, or a combination. Must be consulted before other agent skills.

langchain-rag

by langchain-ai

INVOKE THIS SKILL when building ANY retrieval-augmented generation (RAG) system. Covers document loaders, RecursiveCharacterTextSplitter, embeddings (OpenAI), and vector stores (Chroma, FAISS, Pinecone).

langgraph-fundamentals

by langchain-ai

INVOKE THIS SKILL when writing ANY LangGraph code. Covers StateGraph, state schemas, nodes, edges, Command, Send, invoke, streaming, and error handling.

langchain-fundamentals

by langchain-ai

Create LangChain agents with create_agent, define tools, and use middleware for human-in-the-loop and error handling.

testing-patterns

by langchain-ai

Unit testing and integration testing best practices

deep-agents-memory

by 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.

deep-agents-orchestration

by langchain-ai

INVOKE THIS SKILL when using subagents, task planning, or human approval in Deep Agents. Covers SubAgentMiddleware, TodoList for planning, and HITL interrupts.

langsmith-trace

by 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.

🔥🔥🔥✓ VerifiedFree

langchain-middleware

by 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-evaluator

by 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.

🔥🔥🔥✓ VerifiedFree

langsmith-dataset

by 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.

🔥🔥🔥✓ VerifiedFree

wordpress-block-theming

★ 102

by 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.

site-specification

★ 102

by 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.

design-systems

★ 102

by 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.

webflow-code-component:component-audit

by webflow

Audit Webflow Code Components for architecture decisions - prop exposure, state management, slot opportunities, and Shadow DOM compatibility. Focused on Webflow-specific patterns, not generic React best practices.

webflow-mcp:site-activity

by 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-mcp:bulk-cms-update

by 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

by 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.

webflow-cli:cloud

by webflow

Initialize, build, and deploy full-stack Webflow applications to Webflow Cloud hosting. Supports site-attached deploys (linked to an existing Webflow site) and project app deploys (independent project, no existing site required). Use when creating new projects, deploying existing ones, or setting up CI/CD pipelines for Webflow Cloud.

webflow-cli:designer-extension

by webflow

Build Designer Extensions for custom Webflow Designer functionality. Lists available templates, initializes extension projects from templates (default/react/typescript-alt), bundles extensions for upload, and serves locally for development.

webflow-code-component:convert-component

by webflow

Convert an existing React component into a Webflow Code Component. Analyzes TypeScript props, maps to Webflow prop types, generates the .webflow.tsx definition file, and identifies required modifications.

webflow-code-component:deploy-guide

by webflow

Step-by-step guide for deploying Webflow Code Components to a workspace. Covers authentication, pre-flight checks, deployment execution, and verification.

webflow-mcp:compress-cms-image

by webflow

Compress and convert CMS item image fields to webp or avif in a Webflow collection. Prompts for collection ID, item ID, image fields, quality, and target format, then downloads, converts, re-uploads via presigned S3, and publishes the updated item.

webflow-cli:code-component

by 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

by webflow

Expert guidance on Webflow CMS architecture and best practices. Use when planning collections, setting up relationships, optimizing content structure, or troubleshooting CMS issues.