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Does LangChain have Custom Instructions?
YES
Prompts, graphs, and Fleet natural-language agent specs.
Does LangChain have Custom Instructions?
LangChain supports Custom Instructions. Set persistent, global rules for how the AI should behave or respond across all chats (e.g., always output Python code, or never use emojis). LangChain is an open-source agent framework (LangChain, LangGraph, Deep Agents) with 350M+ monthly downloads. Prompts, graphs, and Fleet natural-language agent specs.
- Tool
- 🦜 LangChain by LangChain
- Feature
- Custom Instructions · Memory & Context
- Status
- Yes, requires free plan
- Notes
- Prompts, graphs, and Fleet natural-language agent specs.
- Pricing
- Requires free plan.
- Source
- langchain.com
- Last verified
- 2026-09-02