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Propagate a code change into the documentation corpus (docs/). Use after merging or before shipping any change that alters user-visible behaviour (UI, routes, permissions, tiers, endpoints, copy), or when someone says "the docs are out of date", "sync the docs", or "update docs for this PR". Takes PR numbers or a commit range; maps the diff to affected docs pages, updates them grounded in the code, and opens a review PR. Never pushes docs straight to main.

PostHog integration for React Router v7 - Data mode applications