langchain-typescript-quickstart
Scaffold a minimal local LangChain agent in TypeScript by following the official quickstart. Use when the user wants to quickly build or try a LangChain agent locally.
How do I install this agent skill?
npx skills add https://github.com/langchain-ai/langchain-skills --skill langchain-typescript-quickstartIs this agent skill safe to install?
- Gen Agent Trust Hubpass
This skill facilitates the local setup of a LangChain agent by referencing official documentation. It includes standard developer operations such as directory creation and package installation. Security practices such as using environment files for secrets are encouraged.
- Socketpass
No alerts
- Snykwarn
Risk: MEDIUM · 2 issues
What does this agent skill do?
LangChain TypeScript quickstart
Follow the live docs — do not invent an alternate API from memory:
https://docs.langchain.com/oss/javascript/langchain/quickstart
Fetch that page (Docs MCP or HTTP) and implement what it shows (weather agent + createAgent). Requires Node 22+.
Local setup constraints
Apply these on top of the quickstart (they keep setup minimal and model-agnostic):
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Ask which provider/model to use. Showcase that LangChain is model-agnostic. Suggested prompt:
Which model should this agent use? Pass a
provider:modelstring — e.g.openai:gpt-5.5,anthropic:claude-sonnet-5,google-genai:gemini-2.5-flash-lite. Default if you're unsure:anthropic:claude-sonnet-5.Swap the quickstart's model string for their choice (or the default).
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Create a new directory (e.g.
langchain-agent/) and do all work there — do not pollute the open project. -
Only secret: the provider API key in
.env(gitignored). No LangSmith / Tavily unless they ask. Prefer they edit.envthemselves — don't paste keys into chat. -
Install the provider package needed for their model if the quickstart's base install isn't enough.
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Run the example, show output, then stop. Point to
langchain-fundamentalsfor next steps.
How can the creator link this skill?
Add the canonical catalog link to the repository README so users can inspect current installs and available audits. The publishing guide covers the complete discovery path.
<a href="https://skillzs.dev/skills/langchain-ai/langchain-skills/langchain-typescript-quickstart">View langchain-typescript-quickstart on skillZs</a>