LangChain · Building AI agents

Adds persistent memory to AI apps with the Mem0 Python and TypeScript SDKs: store, search, update and delete user memories, with framework integrations.

mem0ai/mem0

Debugs LangChain and LangGraph agents by pulling recent execution traces with the langsmith-fetch CLI and reporting errors, tool calls, timings and token use.

ComposioHQ/awesome-claude-skills

Add a new self-contained example agent under examples/. An agent skill from GetBindu/Bindu.

GetBindu/Bindu

Helps instrument a custom Python or TypeScript agent to record events for Failproof AI, verify what gets written, and run an evaluator worker that scores the runs.

FailproofAI/failproofai

Migrate existing AI agent projects (LangChain, LangGraph, OpenAI Agents SDK, Claude Agent SDK, CrewAI) to EdgeOne Makers platform conventions.

TencentEdgeOne/edgeone-makers-tools

A skill your agent uses for anything involving the Synalinks neuro-symbolic LM framework (Keras-inspired): DataModel/Field/Input, JSON operators (+ & | ^ ~), synalinks.ops…

SynaLinks/synalinks-skills

Scans Python agent code for framework imports and recommends the matching Omnigent executor type, or says when the framework is not natively supported yet.

omnigent-ai/omnigent

Deposit and bridge funds into a wallet or protocol using Swapper Finance.

swapperfinance/swapper-toolkit

A Chinese-language guide and reference for building agents with LangGraph 1.0, from a first ReAct agent through middleware, memory, MCP, RAG and web search.

luochang212/dive-into-langgraph

Guides Stripe integration decisions — API selection (Checkout Sessions vs PaymentIntents), Connect platform setup (Accounts v2, controller properties), billing/subscriptions, Treasury financial…

kanchengw/cnllm

Guide for upgrading Stripe API versions and SDKs. An agent skill from kanchengw/cnllm.

kanchengw/cnllm

Explains the n8n Custom Code Tool's actual runtime contract so an AI-agent-callable tool doesn't get written like a regular workflow Code node.

czlonkowski/n8n-skills

LLM and ML development best practices with LangChain and transformers.

meleantonio/ChernyCode

Comprehensive guide for designing, refining, and auditing system prompts for autonomous AI agents based on Anthropic's production practices.

agentailor/fullstack-langgraph-nextjs-agent

Migrates Python LangChain Deep Agents applications to Pydantic AI and Pydantic AI Harness while preserving the application's observed behavior.

pydantic/pydantic-ai

Skill for compiling and writing release notes for langchain-azure packages.

langchain-ai/langchain-azure

Search 2500+ curated ChatGPT and LLM open-source repositories.

taishi-i/awesome-ChatGPT-repositories

Add, move, rename, or delete a page on the LangChain docs site.

langchain-ai/docs

A skill your agent uses when adding, debugging, or modifying LLMObs plugins for an LLM library in dd-trace-js.

DataDog/dd-trace-js

Local evidence debugger and trajectory-test toolkit for TypeScript AI agents.

rajudandigam/agent-inspect

Write a Magic Resume commit message that passes the gitmoji + conventional-type lint.

Magic-Resume/Magic-Resume

Routes LangGraph agents with typed decision models that return probabilities, and finds LLM calls that only exist to produce a routing decision.

langchain-ai/langchain-skills

Wires up an Airbyte connector for use in a PydanticAI, Claude SDK, or other agent.

airbytehq/airbyte-agent-sdk

Build batteries-included agents with planning, context management, subagent delegation, and sandboxed execution.

langchain-ai/docs

Reviews changes in the langchain-azure monorepo using package-specific knowledge of langchain-azure-ai, langchain-azure-compute, langchain-azure-cosmosdb, langchain-azure-postgresql…

langchain-ai/langchain-azure

Builds a complete agent with multiple Airbyte connectors using PydanticAI or Claude SDK.

airbytehq/airbyte-agent-sdk

Migrate Python LangChain, LangGraph, or Deep Agents applications to Pydantic AI and, when the source uses harness features, Pydantic AI Harness.

pydantic/pydantic-ai

Design and verify tools that AI agents can actually use — for any framework or language (MCP servers, LangChain/LangGraph, function-calling, raw JSON schema; TypeScript, Python, or otherwise).

agentailor/fullstack-langgraph-nextjs-agent

A skill your agent uses when migrating inline code samples from LangChain docs (MDX files) into external, testable code files that are extracted by this repo’s snippet scripts and used as Mintlify…

langchain-ai/docs

Develop, test, and extend ChemGraph -- an agentic framework for automated molecular simulations using LLMs, LangGraph, ASE, and MCP servers

argonne-lcf/ChemGraph

How AI agents integrate with Magic Resume — read and safely edit a user's resumes through the native MCP server (@magic-resume/mcp).

Magic-Resume/Magic-Resume

Initialize, validate, and troubleshoot Deep Agents projects in Python or JavaScript using the deepagents package.

soba-labs/langchain-agent-skills

Multi-agent orchestration framework for autonomous AI collaboration.

Orchestra-Research/AI-Research-SKILLs

Framework for building LLM-powered applications with agents, chains, and RAG.

Orchestra-Research/AI-Research-SKILLs

INVOKE THIS SKILL at the START of any LangChain/LangGraph/Deep Agents project, before writing any agent code.

langchain-ai/skills-benchmarks

Create new tools or upgrade existing tools for the agent. An agent skill from AgentTeam-TaichuAI/ScienceClaw.

AgentTeam-TaichuAI/ScienceClaw

Decide which AI agent behaviors are worth an eval case, then write those cases — harness-, framework-, and language-agnostic.

agentailor/fullstack-langgraph-nextjs-agent

Build LangChain agents with modern patterns. An agent skill from langchain-ai/skills-benchmarks.

langchain-ai/skills-benchmarks

Design LLM applications using the LangChain framework with agents, memory, and tool integration patterns.

HermeticOrmus/LibreUIUX-Claude-Code

Helps define agent tools with a fail-closed pattern: one class holding name, schema, security flags and a validate, permission and call execution chain.

simbajigege/book2skills

Explains how to build agents with the Deep Agents framework: create_deep_agent, the built-in middleware, the harness, SKILL.md format and configuration options.

langchain-ai/langchain-skills

Principal AI Architect and Machine Learning Engineer. An agent skill from Dokhacgiakhoa/Agent-Skills-4-Vibe-Coding-CLI.

Dokhacgiakhoa/Agent-Skills-4-Vibe-Coding-CLI

Guide to designing n8n AI agents: choosing between Agent, chain, classifier and extractor nodes, wiring model, memory, tools and parser, plus RAG and human review.

czlonkowski/n8n-skills

ALWAYS START HERE for any LangChain, Deep Agents, or LangGraph agent building project.

langchain-ai/skills-benchmarks

当用户需要编写LangChain或LangGraph相关代码时，提供基于示例代码的编码辅助，包括RAG、Agent、工作流、工具定义、中间件等多种功能模块的实现指导。

5zjk5/prompt-engineering

This skill should be used when a learner is working through Module 1 ("Build an Agent") of the Build-an-Agent workshop and wants help understanding the concepts, notebooks, or code — e.g.

brevdev/workshop-build-an-agent

LangChain / LangGraph engineering pitfalls and verified fixes.

ob-labs/agentseek

Build agents with a prebuilt architecture and integrations for any model or tool.

langchain-ai/docs