documate 0.4.0

Tie docs to the code they describe, and yell when one moves without the other. Plugs into any repo.

documate

documate generates documentation from your code (an overview, one page per module, and an API reference from your docstrings) and fails CI when those docs stop matching the code.

Install

uv tool install documate     # or: pipx install documate  /  pip install documate

--ai additionally needs the claude CLI on your PATH. Everything else is stdlib.

Use

cd your-repo
documate --init    # first run: create a config, then generate the docs
documate           # generate or refresh docs/, then gate them

Command	What it does
documate	index, write or refresh docs/, then gate it
documate --check	gate only, writes nothing (for CI and pre-commit)
documate --watch	regenerate on every save
documate --html	also render a static site into site/
documate --ai [MODEL]	draft missing docstrings with a model, then re-verify
documate --stats	show coverage, documentation lines, and model spend

Run documate path/to/repo to document any repo. Run documate --help for the full list.

What it writes

• docs/README.md: an overview with a dependency map, coverage, entry points, and hotspots.
• docs/ARCHITECTURE.md: the whole system on one page.
• docs/architecture/<module>.md: one page per module (docstring, dependencies, call-flow, symbols).

The gate

documate --check exits non-zero when:

1. Generated pages are out of date. Run documate to refresh them.
2. A hand-written page points at code that no longer exists.
3. A hand-written page describes code that changed since --base but was not updated.

Install the pre-commit hook once:

git config core.hooksPath hooks

It regenerates and stages the generated pages on every commit. In CI, run documate --check with fetch-depth: 0 on actions/checkout.

Authored pages

Write Markdown under docs/ and anchor it to the code it documents:

<!-- documents: sym:build_model -->

documate --check then fails if that code changes and the page does not. Add a sig: fingerprint after the symbol to pin the page to the exact source.

Configuration

documate --init writes documate.config.json. Override only what you need:

{
  "docs_dir": "docs",
  "site_dir": "site",
  "skip_dirs": ["/generated/"],
  "default_base": "main"
}

License

MIT. The engine in src/documate/_engine/ is vendored from code-review-graph (MIT).