langchain SKILL.md skillA
langchain from svngoku/coding-agents-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add svngoku/coding-agents-skills/langchain@git:20261018.63db2d6Pins git:20261018.63db2d6 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- svngoku/coding-agents-skills
- Path
skills/langchain/SKILL.md- Versions recorded
- 4
- Latest version
- git:20261018.63db2d6, committed Oct 18, 2026
- First version recorded
- Jan 9, 2026
- Size
- 18,022 bytes
- Repository stars
- 12
- License
- MIT
Build AI agents with LangChain v1 and LangGraph in Python. Use this skill whenever the user mentions LangChain, LangGraph, create_agent, init_chat_model, @tool, ToolRuntime, agent middleware, human-in-the-loop, structured output, MCP tools (langchain.mcp, MCPAdapter), RAG, multi-agent handoffs or subagents, checkpointers, Deep Agents (create_deep_agent) or Managed Deep Agents (mda, define_deep_agent). Also trigger for migrating from create_react_agent, LLMChain, AgentExecutor or…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# LangChain Skill Build production AI agents with LangChain v1 (`create_agent` on top of LangGraph), its middleware system, built-in MCP support and the LangGraph runtime. Verified against `langchain` 1.4.6, `langchain-core` 1.6, `langgraph` 1.2 and `deepagents` 0.7 (Python 3.10+; `deepagents` needs 3.11+). ## Quick Reference | Topic | File | |-------|------| | Built-in and custom middleware | [references/middleware.md](references/middleware.md) | | LangGraph graphs, persistence, durability, streaming | [references/langgraph.md](references/langgraph.md) | | Subagents, handoffs, skills, routers | [references/multi-agent.md](references/multi-agent.md) | | Deep Agents harness and Managed Deep Agents (`mda`) | [references/deep-agents.md](references/deep-agents.md) | | RAG, embeddings, vector stores, retrievers | [references/retrieval.md](references/retrieval.md) | ## Installation ```bash pip install -U langchain langgraph langchain-anthropic # or langchain-openai, langchain-google-genai, ... pip install -U "langchain[mcp]" # built-in MCP client (langchain.mcp, beta) …
Read the whole file at its exact version.
How to install
mdr add svngoku/coding-agents-skills/langchain@sha256:f276cdd54ceeaf88The line at the top of this page pins the label git:20261018.63db2d6, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_55lhsqv5cwjahnwm)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between Jan 9, 2026 and Oct 18, 2026, about one every 94 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261018.63db2d6 latest | 2026-10-18 | 63db2d6 | 18,022 B | A | view · diff |
| git:20261017.2236aa0 | 2026-10-17 | 2236aa0 | 17,567 B | A | view · diff |
| git:20260813.422f18d | 2026-08-13 | 422f18d | 7,821 B | A | view · diff |
| git:20260109.00de6d5 | 2026-01-09 | 00de6d5 | 6,097 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (18022 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
svngoku/coding-agents-skills · 12 stars · license MIT · pushed 2026-10-19 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_55lhsqv5cwjahnwm GET https://markdownregistry.com/api/v1/resolve?ref=svngoku/coding-agents-skills/langchain GET https://markdownregistry.com/api/v1/blob/f276cdd54ceeaf883985825b5d486e50eb1328f3c0003ff65fa000e29e1879fb
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
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