DATE:
AUTHOR:
The LangChain Team
LangSmith

No Code Agent Builder in LangSmith, now in private preview

DATE:
AUTHOR: The LangChain Team

We're expanding who can build agents beyond developers with LangSmith Agent Builder— a no-code agent-building experience now in private preview. Build real agents for internal productivity without writing code, using guided prompts and built-in memory.

LangSmith Agent Builder is built on the deepagents architecture and allows for:

  • No-code agent building: Build real agents, not visual workflows. Delegate decision-making to an LLM for dynamic responses that handle complex tasks without mapping every scenario.

  • Conversational setup flow: Describe what you want in plain language, answer follow-up questions, and the system auto-generates your prompt, connects tools, and sets triggers—no prompt engineering expertise required.

  • Built-in memory: Agents remember corrections and updates over time. Correct your agent once and it remembers for future interactions without manual prompt updates.

  • MCP tool integration: Connect to external services using Model Context Protocol. Built-in tools ready to use, plus secure integration with Gmail, Slack, LinkedIn, Linear, and custom MCP servers via Agent Authorization.

  • Automated triggers: Launch agents on background events—incoming emails, Slack messages in specific channels, or time-based schedules.

  • Subagent support: Start simple with one prompt, then break into focused subagents as complexity grows.

When to use Agent Builder: Agent Builder is built on deepagents and perfect for internal productivity agents like email assistants and chat bots. For developers needing more control:

  • Agent Builder: No-code building for business users and rapid prototyping

  • LangChain: Ship agents fast with code using standard patterns

  • LangGraph: Production workflows with fine-grained control and persistence

  • Deep Agents: Autonomous, long-running agents with planning and filesystem access

Learn more in the blog post: https://blog.langchain.com/langsmith-agent-builder/

Sign up for the waitlist: https://www.langchain.com/langsmith-agent-builder-waitlist/

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