Search PostHog's JS/Web SDK docs and return ranked snippets. Pure retrieval with no assembly — use this to discover what documentation exists. For 'how do I X' questions, use how_do_i instead.

Fetch a full PostHog doc by path or slug, e.g. 'libraries/js/usage', '/docs/product-analytics/identify', or a full posthog.com URL. Returns the complete markdown — this can be large, so prefer how_do_i unless you need the whole page.

Answer a 'how do I X with PostHog?' task with an assembled context block: the minimal set of deduplicated, ordered, cited passages that answer it, within a token budget. Prefer this over search for any implementation question — it returns roughly a quarter the tokens of a raw top-k dump with materially higher precision. Pass the task in natural language, and mention the framework if you know it ('in React') so the right variant is selected.