lluminy

lluminy takes aim at a job most teams avoid: writing and maintaining documentation. It is built for Python codebases specifically, and its promise is that you can turn an undocumented project into a clearly commented one without editing anything by hand. The tool analyses your code and produces docstrings, either for every function in scope or only for the functions that currently lack documentation.

The workflow is GitHub-centric. You connect your account, choose a repository — personal or organization — and select the files, directories or branches you want covered. lluminy then runs the generation and creates a pull request with the resulting docstrings, so review and merge happen in your normal Git process rather than through copy and paste. A one-click "add parameter across the pipeline" style of bulk work is not required; the tool focuses on comments only.

A deliberate design decision is that lluminy claims to work exclusively with docstrings and to leave the original code unchanged, which addresses the common worry that an LLM might silently rewrite logic while documenting it. Pricing is simple: a free tier for hobby projects and a $20/month Premium plan for teams with a 10M monthly token allowance. Generation is powered by Llama 3.3.