langchain-dependencies
INVOKE THIS SKILL when setting up a new project or when asked about package versions, installation, or dependency management for LangChain, LangGraph, LangSmith, or Deep Agents. Covers required packages, minimum versions, environment requirements, versioning best practices, and common community tool packages for both Python and TypeScript.
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About langchain-dependencies
The langchain-dependencies skill provides structured guidance for setting up and managing the package ecosystem of LangChain and related frameworks, including LangGraph, LangSmith, and Deep Agents. It addresses the common challenges of dependency conflicts, version mismatches, and environment configuration, ensuring that developers can start new projects on a stable foundation. By specifying minimum versions, core packages, and optional extensions, this skill helps maintain predictable upgrades and avoids the pitfalls of using outdated or incompatible packages.
FAQ
Which packages are required to start a new LangChain project?
For Python, the always-required packages are langchain (1.0+), langchain-core (1.0+), and langsmith (>=0.3.0). You must also choose one orchestration layer: either langgraph or deepagents. Optional model provider packages can be added based on the services you plan to use.
What are the minimum environment requirements?
Python projects require Python 3.10 or higher, and Node.js projects require version 20 or higher. LangChain LTS version 1.0+ is recommended for both Python and TypeScript, with LangSmith SDK version >=0.3.0.
Can I use both LangGraph and Deep Agents together?
No, these are alternative orchestration frameworks. You should pick one based on your project needs: LangGraph for fine-grained graph workflows, or Deep Agents for a batteries-included planning and memory framework.
How should I handle packages that do not follow semantic versioning?
Packages like langchain-community do not follow semver, so it is recommended to pin them conservatively to a minor series to avoid compatibility issues.
Are provider integrations included by default?
No, provider packages such as langchain-openai, langchain-anthropic, or langchain-google-genai must be installed individually depending on the services you intend to use.
Install langchain-dependencies
Quick Setup:
- Copy the skill folder to
.claude/skills/ - Claude will automatically detect and use the skill
Repository
langchain-ai/langchain-skills