Company Announcements LangSmith Introducing LangSmith’s No Code Agent Builder
Build agents using the new no‑code builder to reduce prompt engineering.
Build agents using the new no‑code builder to reduce prompt engineering.
Summary
LangSmith launches a no‑code agent builder in private preview on October 29, 2025, allowing non‑technical users to build agents with memory and guided prompt creation. The builder uses a guided conversation to generate the system prompt, connect tools via the MCP, and set triggers based on user answers. Built on the deepagents package, it supports built‑in tools and allows users to bring their own MCP servers. Agent Authorization lets teams securely connect approved tools such as Gmail, Slack, LinkedIn, or Linear. The builder includes built‑in memory for both the agent and its tools, enabling the agent to update its memory after each run. Subagents can be added for complex tasks, and the platform supports email, chat, and Salesforce assistants. The no‑code builder is designed to lower the barrier to agent creation while enabling users to tackle more complicated workflows.
The preview emphasizes that the builder is an agent builder, not a visual workflow builder, and that it focuses on prompt engineering and memory rather than a predetermined path. It also highlights the importance of structured prompt writing and the ability to iterate quickly without writing code.
Key changes
- Introduces a no‑code agent builder in private preview
- Guided conversation generates system prompt, connects tools, sets triggers
- Built on deepagents package with built‑in memory
- Supports Agent Authorization for secure tool access
- Allows subagents for complex tasks
- Supports email, chat, Salesforce assistants
- Uses MCP for tool connections
- Reduces need for prompt engineering