Turns a week of merged PRs into a changelog humans read — grouped by impact, written for users, breaking changes on top.

Writes an endpoint's reference page from its route, request validation and response shape — every field, every error, one working example.

Documents code so it is still true in a year. Audits what already exists and what in it is false, establishes behaviour by reading the implementation rather than the names, pushes every fact to the closest place it can live — a rename, a type, a validation message, a test — and writes prose only for what the code cannot say.