AgentLanternDeveloper tools for AI agent projects

Document, lint, inspect, and run agent systems across Python, JavaScript, TypeScript, .NET, and Java — from one CLI.

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CLI Guide

lantern play

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Document agent systems

Generate architecture docs and diagrams for CrewAI, LangGraph, OpenAI Agents SDK, Mastra, PydanticAI, and many more.

Lint before runtime

Catch missing fields, broken references, idle agents, risky config, and CI-facing issues without calling an LLM.

Watch runs live

Start, stop, replay, and inspect supported Python, Node, .NET, and Java agent runs inside the Play environment.

Current version: v0.4.024 framework adapters · 4 language ecosystems · one CLI

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Featured integrationsDeep adapters for the most widely used agent runtimes.

CrewAIAvailable

LangGraphAvailable

AutoGenAvailable

SmolagentsAvailable

Google ADKAvailable

OpenAI Agents SDKAvailable

24framework adapters

4language ecosystems

9CLI commands

2generic fallbacks

PYPython ecosystems

CrewAI, LangGraph, AutoGen, Smolagents, Google ADK, OpenAI Agents SDK, PydanticAI, LlamaIndex, Semantic Kernel, Agno, LangChain, Haystack, Strands, CAMEL-AI, MetaGPT, BeeAI, and Swarm.

Static analysis + framework-aware Play hooks

TSJavaScript & TypeScript

Mastra, Vercel AI SDK Agents, Strands, BeeAI, plus conventional Agent, *Agent, and factory-based internal frameworks.

Agents, tools, workflows, scripts, and logs

.N.NET & Java

Semantic Kernel agent construction, instructions, entrypoints, and launch detection for .NET, Maven, and Gradle projects.

Source analysis + process-level Play

+Your internal framework

Generic Python and JavaScript/TypeScript analyzers recognize common constructors, subclasses, factories, tools, teams, and run methods.

Explore the complete coverage matrix →

lantern docsGenerate Markdown and a static docs site from an agent project.

lantern lintRun deterministic project checks locally or in CI.

lantern playOpen the animated UI, name the run, then start and inspect execution.

Fast Start

bash

pip install "agentlantern @ git+https://github.com/brellsanwouo/agentlantern.git"
# or
uv tool install git+https://github.com/brellsanwouo/agentlantern.git

bash

lantern web /path/to/my-agent-project
lantern lint /path/to/my-agent-project
lantern play /path/to/my-agent-project

Documentation Development

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