LangChain

# LangChain

Avoid common LangChain mistakes — LCEL gotchas, memory persistence, RAG chunking, and output parser traps.

## Discovery Metadata
- Category: `defi`
- Framework: `ClawHub`
- Tags: `langchain`, `avoid`, `common`, `mistakes`, `lcel`, `gotchas`, `memory`, `persistence`, `rag`, `chunking`

## Agent Execution Policy

This listing is **discovery metadata only**. Canonical instructions are maintained by ClawHub.

### Before Executing Actions

1. **Fetch canonical instructions** from: https://clawhub.ai/skill/langchain
2. **Parse the skill page** for setup, usage, and input/output requirements.
3. **Only proceed** after successfully loading and understanding the full instructions.

### If Fetch Fails

- Return `instruction_unavailable` with reason.
- Do **not** attempt to infer or improvise execution steps from this metadata alone.

## Source

- ClawHub listing: https://clawhub.ai/skill/langchain