The full upstream README, mirrored here for reference. Install config, tool schemas, adoption signals, and an original overview live on the AGENTS.md Generator listing page.
MCP server that analyzes codebases with tree-sitter and generates AGENTS.md files.
Python · C# · TypeScript · JavaScript · Go
Installation · Usage · Configuration · How It Works · Contributing
Compatible with any MCP-capable client: Claude Code, Gemini CLI, Cursor, Windsurf, Codex CLI, and others.
The server exposes three tools with a clear separation of concerns:
generate_agents_md — main entry point. Runs the analysis pipeline internally, embeds writing rules into the payload, and returns chunked read instructions to your client.scan_codebase — standalone context tool for when you want deep codebase understanding without generating any file.read_payload_chunk — streams the payload back in chunks regardless of which tool produced it.No large data travels over the MCP wire.
Requirements: Python 3.11+, Git, and any MCP-compatible client.
See INSTALLATION.md for the full guide including prerequisites and troubleshooting.
The setup wizard detects your installed clients, asks whether to configure globally or per-project, and patches the config files automatically. Supports Claude Code, Gemini CLI, Cursor, Windsurf, and Codex CLI.
If you have uv installed, uvx runs the package without a prior install step. Add the entry manually to your client's MCP config:
For Claude Code specifically:
claude mcp adddefaults to--scope local(current project only). Add-s userto register it for all projects.
Once registered, ask your AI client:
"Generate the AGENTS.md for this project"
The client will call generate_agents_md automatically. To scan a different directory:
"Generate the AGENTS.md for the project at /path/to/project"
| Tool | Purpose |
|---|---|
generate_agents_md | Main entry point. Runs the pipeline internally, embeds writing rules into the payload, and returns chunked read instructions. Use this to create or update AGENTS.md. |
scan_codebase | Standalone context tool. Analyzes the codebase and returns a pure data payload with no AGENTS.md mandate. Use this when you need architectural context for any other task. |
read_payload_chunk | Streams the payload written by either tool in chunks until has_more is false. |
generate_agents_md| Parameter | Type | Default | Description |
|---|---|---|---|
project_path | string | "." | Path to the project root |
scan_codebase| Parameter | Type | Default | Description |
|---|---|---|---|
project_path | string | "." | Path to the project root |
force_full_scan | boolean | true | Ignore cache and rescan everything. Defaults to true — direct calls always perform a full scan. |
read_payload_chunk| Parameter | Type | Default | Description |
|---|---|---|---|
project_path | string | "." | Must match the path used in the preceding tool call |
chunk_index | integer | — | Zero-based chunk index. Increment until has_more is false |
The generated AGENTS.md follows the agents.md open standard. It is written as a README for AI agents, not as documentation for humans. Sections include:
| Section | Contents |
|---|---|
| Project Overview | Tech stack and top-level architecture shape |
| Architecture & Data Flow | Detected layers or domains with data flow direction |
| Conventions & Patterns | Naming rules, export contracts, import rules, how to add new entities end-to-end |
| Environment Variables | Variables detected in source files and .env.example |
| Setup Commands | Exact install and run commands from package.json, Makefile, etc. |
| Development Workflow | Build, watch, and dev server commands |
| Testing Instructions | Test commands and framework info (if detected) |
| Code Style | Lint/format commands (if config files detected) |
| Build and Deployment | CI pipeline info (if detected) |
Sections with no detected data are omitted entirely.
AGENTS.md content anywayAGENTS.mdFor large codebases the analysis payload can be too big to return inline over the MCP wire. The server handles this transparently through read_payload_chunk.
generate_agents_md flowgenerate_agents_md runs the pipeline internally, writes the payload to disk (including AGENTS.md writing rules), and returns total_chunks with read instructionsread_payload_chunk(project_path, chunk_index=0), then increments chunk_index until has_more is falsedata fields — the payload contains the rules and analysis data needed to write AGENTS.mdscan_codebase flow (pure context, no AGENTS.md mandate)scan_codebase runs the analysis and writes a pure data payload to diskread_payload_chunkThis flow is pure MCP — no filesystem access required from the client side. Any MCP-compatible client can follow it.
All runtime artifacts are stored outside your project, in the user cache directory:
The <project-hash> is a SHA-256 of the project's absolute path — unique per project. Nothing is written to your repository.
Note: The server also writes a temporary
payload.jsonto this directory during analysis, but it is managed entirely by theread_payload_chunktool and deleted automatically after the last chunk is read. You never need to access it directly.
Create .agents-config.json at your project root to customize behavior. This file is optional — all fields have defaults, and you can commit it to share settings with your team.
| Key | Default | Description |
|---|---|---|
project_size | "medium" | Project scale — tunes all internal caps and thresholds (see Project Size Profiles) |
exclude | (see above) | Glob patterns to exclude from analysis |
include | [] | If non-empty, only analyze files matching these patterns |
languages | "auto" | "auto" detects all supported languages, or pass a list like ["typescript", "python"] |
agents_md_path | "./AGENTS.md" | Output path for the generated file |
max_file_size_bytes | 1048576 | Files larger than this are skipped (default: 1 MB) |
| Variable | Default | Description |
|---|---|---|
AGENTS_MD_LOG_LEVEL | INFO | Server log verbosity. Set to DEBUG to see per-file analysis details. Valid values: DEBUG, INFO, WARNING, ERROR |
The project_size setting controls how aggressively the payload is compressed. A single knob tunes all internal caps — methods per class, symbols per file, directory aggregation, route caps, tree depth, and impact filtering.
| Profile | Lines (guidance) | Impact filter | Description |
|---|---|---|---|
"small" | 0–15k | medium | Generous caps — nearly everything is included. Best for small projects where full visibility matters. |
"medium" (default) | 15k–50k | medium | Balanced caps suitable for most projects. |
"large" | 50k+ | high | Aggressive compression — only structural/breaking changes in diffs, more directory collapsing, tighter symbol caps. |
| Constant | Small | Medium | Large |
|---|---|---|---|
| Methods per class | 30 | 12 | 8 |
| Symbols per file | 40 | 20 | 10 |
| Dir aggregation threshold | 20 | 10 | 5 |
| Files per layer (before overflow) | 15 | 8 | 5 |
| Aggregation sample size | 5 | 4 | 3 |
| Route controllers cap | 30 | 15 | 10 |
| Routes per controller | 15 | 8 | 5 |
| Go handlers cap | 15 | 8 | 5 |
| Directory tree depth | 4 | 3 | 2 |
| Impact filter | medium | medium | high |
The server scans all source files for environment variable references using language-specific patterns:
| Language | Pattern detected |
|---|---|
| JavaScript / TypeScript | process.env.VAR_NAME |
| Python | os.environ['VAR'], os.getenv('VAR') |
| Go | os.Getenv("VAR") |
| Ruby | ENV['VAR'] |
| Rust | env!("VAR"), var("VAR") |
It also parses .env.example, .env.template, and .env.sample files at the project root.
Files named index, main, app, server, program, bootstrap, or startup (with any supported extension) are detected as entry points and annotated with their inferred role (e.g., "HTTP server bootstrap", "Electron main process").
Tree-sitter parses each source file and extracts public symbols — classes, functions, methods, interfaces — filtering out private/protected members and underscore-prefixed symbols. For classes and structs, constructors (when they have parameters) and public properties are also included, revealing dependency injection patterns and data shapes. Interface methods are always included as they define the public contract. These are used to detect naming conventions, DI patterns, and export contracts across layers.
For large codebases, the tool applies several heuristics to ensure the payload remains high-signal:
Migrations, bin, obj, and Properties are automatically flagged and collapsed in the project structure, preventing them from bloating the directory listing.generate_agents_md, writing rules are embedded directly in the payload so the AI agent reads the "Rules of Engagement" before processing the code architecture. Direct scan_codebase calls return pure data with no mandate.AGENTS.md format based on the open agents.md standard.
Licensed under the MIT License