Features
AI-powered codebase discovery (repo-wide, git-connected)
C4 model diagrams (System Context, Containers, Components, Code)
Interactive drag-and-drop diagram editor with relationship mapping
Architecture as Code (YAML DSL) for version-controlled docs
Architecture Decision Record (ADR) import and management
Diagram overlays for highlighting architectural concerns
Streaming AI chat for real-time architecture queries
Managed agent runs for automated diagram refinement
Architecture Drift Score to detect documentation drift
MCP server and REST API for CI/CD integration
Slack & Teams bots for team notifications
Technologies visualization (tech radar)
On-premise deployment option for enterprise
SSO authentication (SAML/OIDC) and organization management
Bring your own AI provider (OpenAI, Anthropic, Gemini, Bedrock)
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
