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LangChain service architecture (Python) v1.0.0

Use this resource to structure a layered Python LangChain service

New

  • 512 downloads
  • 175 likes
  • 170 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install langchain-service-architecture

With no option, the skill goes to ~/.agents/skills/; add --agent claude-code (or codex, cursor…) to target an agent.

First time: connect the CLI with

npx --yes palatekit@latest login

The agent proposes a five-layer directory layout, centralizes model defaults and replaces scattered chains with a registry. You get a reference architecture and the refactoring steps.

Mostly picked by

Updated November 2, 2026

Card for the “LangChain service architecture (Python)” skill

Details

Works in
Install guides
Generates with
Your agent's model
Licence
MIT

Similar resources

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What you get

  • SKILL.md: refactoring steps, directory layout and dependency rules
  • references/: LLM factory, directory layout and per-environment checkpointer patterns

Good fit for

  • Your chains are defined inside API route handlers
  • A new team must take over an existing service

Not for

    Tags

    • langchain
    • langgraph
    • architecture
    • python

    About

    You say

    “Refactor my LangChain service: chains live in FastAPI routes, I need a registry and an LLM factory.”

    Card for the “LangChain service architecture (Python)” skill

    Skill published by Jeremy Longshore <jeremy@intentsolutions.io> under the MIT license, delivered in its original version.

    Show more

    How to use it

    1. Install the skill in your agent's skills folder
    2. Ask your agent to structure a layered Python LangChain service
    3. Review and adjust the result

    Content preview

    Files

    • LICENSE1.1 KB
    • NOTICE-PALATEKIT.md0.6 KB
    • references/dependency-rules.md4.9 KB
    • references/directory-layout.md5.5 KB
    • references/llm-factory-pattern.md5 KB
    • references/one-pager.md3.5 KB
    • references/per-env-checkpointer.md6.1 KB
    • SKILL.md19.1 KB

    Origin and licence

    Listed unmodified

    Author
    Jeremy Longshore <jeremy@intentsolutions.io>
    Source
    github.com/jeremylongshore/tons-of-skills-marketplace/tree/ab85a061f7bcc039dac13ee193de7a4cd4388571/skills/.curated/langchain-reference-architecture
    Licence
    MIT

    Notice

    « langchain-reference-architecture » (Jeremy Longshore <jeremy@intentsolutions.io>, MIT) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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