282  langchain(1) - Kailash Tool Reference

282.1 langchain

langchain - LangChain — the agent engineering platform (SDK core).

Layer OPS
Category o-05-ai-engineering-sdks-dev-env
Safety class safe
Licence MIT
Upstream github.com/langchain-ai/langchain

282.1.1 NAME

langchain - LangChain — the agent engineering platform (SDK core).

282.1.2 SYNOPSIS & usage

Derived from the upstream README at generation time; verify against --help where the tool is installed.

uv add langchain
from langchain.chat_models import init_chat_model

model = init_chat_model("openai:gpt-5.5")
result = model.invoke("Hello, world!")

282.1.3 DESCRIPTION (upstream)

LangChain is a framework for building agents and LLM-powered applications. It helps you chain together interoperable components and third-party integrations to simplify AI application development — all while future-proofing decisions as the underlying technology evolves. > [!TIP] > Just getting started? Check out Deep Agents — a higher-level package built on LangChain for agents that have built-in capabilities for common usage patterns such as planning, subagents, file system usage, and more. uv add langchain from langchain.chat_models import init_chat_model model = init_chat_model(“openai:gpt-5.5”) result = model.invoke(“Hello, world!

282.1.4 SEE ALSO

ref: pin - verified 2026-10-14