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LangChain skilllint — vet an agent skill before you install it lint_skill

How to: LangChain skilllint — vet an agent skill before you install it lint_skill

client:LangChain transport:streamable-http tool:lint_skill

Add skilllint — vet an agent skill before you install it to LangChain

  1. 01

    Open pip install langchain-mcp-adapters and merge this in. Keep any servers already there.

from langchain_mcp_adapters.client import MultiServerMCPClient

client = MultiServerMCPClient({
        "skilllint": {
            "transport": "streamable_http",
            "url": "https://rta.lat/skilllint/mcp",
        }
})

tools = await client.get_tools()
  1. 02

    Save the file and restart LangChain.

  2. 03

    Ask for something lint_skill does. LangChain lists the server's tools on connect and calls lint_skill itself — you do not invoke it by name.

  3. 04

    If nothing happens, check the server is running and that skilllint — vet an agent skill before you install it's identifier in your config matches the one above exactly.

get_tools() returns the server's tools as LangChain tools, ready for an agent. LangChain docs

Same tool, other clients

This list was read from the server itself, by connecting to it and calling tools/list on 21 October 2026. It is what the server actually exposes, not what its listing claims.

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.