Features
Automatic architecture modeling across all major languages
On-demand contextual views (workflow, API path, data flow)
Editable diagrams linked to source code
Versioned architecture models stored in Git
Branch for proposed designs
Export to Mermaid, draw.io, png
Real-time collaboration (Teams plan)
Embeddable diagrams for Notion and Confluence (Teams plan)
In-IDE diagram editor with persistent workspaces (v1.6.0)
AI-integrated multiagent assistant for diagram editing
CodeViz terminal supporting agentic code changes (v1.5.12)
Trace agent executions step by step
Monitor real-time dashboards with cost tracking
Online LLM-as-judge evals for quality scoring
Automated insights with unsupervised topic clustering
SmithDB purpose-built for agent traces
Sub-second query performance across millions of traces
Full-text search with inverted index
JSON key-path filtering and trajectory queries
Self-host SmithDB inside your VPC
LangSmith Engine for autonomous issue detection and fixes
Deploy and scale agents with LangSmith Deployment
Sandboxes for safe agent-generated code execution
Fleet agents for no-code agent creation
Supports Python, TypeScript, Go, Java SDKs
