Langchain Rag
by langchain-ai16a992f09ab3No license1.2K starsListed Oct 8, 2026Updated Oct 8, 2026Repository updated 2 days ago
INVOKE THIS SKILL when building ANY retrieval-augmented generation (RAG) system. Covers document loaders, RecursiveCharacterTextSplitter, embeddings (OpenAI), and vector stores (Chroma, FAISS, Pinecone).
Add to a SourceWeft workspace
- Open the skill in your dashboard and add it to a workspace.
- Enable it for the chats that should use it.
This skill is instructions only: it ships no scripts to execute.
Add to SourceWeftYou will be asked to sign in first, then taken straight to this skill.
Ask your agent to install it
Paste this prompt into Claude Code, Codex, Cursor or another agent that can run commands — or into SourceWeft chat. The agent reads this skill's install guide, shows you its source, license and scripts, and installs it with the SourceWeft CLI once you agree.
Read https://sourceweft.com/skills/gh-langchain-ai-langchain-skills-langchain-rag/install.md and install the skill it describes. Before installing, show me its source, license and whether it ships scripts, and wait for my OK. Ask me before changing anything else on my machine.Install it yourself from a terminal
For Claude Code, Codex, Cursor and other local agents. The SourceWeft CLI fetches the skill from its source repository at the commit scanned here, and verifies every file against the hashes recorded when the skill was scanned. If anything differs, nothing is written.
npx @sourceweft/cli skills install gh-langchain-ai-langchain-skills-langchain-ragAdd --agent claude-code, codex, cursor or universal to choose which agent gets it (Claude Code by default).
Upstream installer — not verified by SourceWeft
The open-source skills installer fetches the same pinned commit, but does not check the files against the hashes SourceWeft recorded.
npx skills add https://github.com/langchain-ai/langchain-skills/tree/16a992f09ab3ccfb642dd4f08d350d833d1990bf/config/skills/langchain-ragSource and attribution
Source:langchain-ai/langchain-skillsinconfig/skills/langchain-ragat commit16a992f
License: No license
Content belongs to its original authors. SourceWeft indexes it from a public repository.
More from langchain-ai/langchain-skills
Langgraph Human In The Loop
langchain-ai
Guides implementing LangGraph human-in-the-loop patterns using interrupt(), Command(resume=...), checkpointers and approval workflows.
Langchain Middleware
langchain-ai
Reference for LangChain agent middleware: human-in-the-loop approval, custom hooks, and structured output.
Langchain Dependencies
langchain-ai
Reference guidance on LangChain ecosystem packages, versions, and environment setup for Python and TypeScript projects.
Ecosystem Primer
langchain-ai
Primer that helps choose between LangChain, LangGraph and Deep Agents and points to the right follow-up skill.
Deep Agents Memory
langchain-ai
Guides configuration of Deep Agents memory backends: ephemeral state, persistent store, filesystem and composite routing.
More in AI & Agents
Skill Development
anthropics
Guides creation of Claude Code plugin skills, covering structure, descriptions, progressive disclosure and validation.
Plugin Structure
anthropics
Guides the structure, manifest, and component layout of Claude Code plugins.
Command Development
anthropics
Guides creation of Claude Code slash commands, covering structure, YAML frontmatter, arguments and plugin features.
Claude Md Improver
anthropics
Audits CLAUDE.md files in a repository, scores their quality, and applies approved targeted improvements.
Google Cloud Solution Agentic Ai Data Science Workflow
Guides design of a multi-product agentic data science architecture on Google Cloud, from requirements to deployment and validation.
Google Cloud Solution Agentic Ai Borderless Data Lakehouse
Guides design of a borderless multicloud open data lakehouse on Google Cloud, from requirements discovery to deployment and validation.