PostHog Handbook Library / Wizard And Docs

543 words. Estimated reading time: 3 min.

Pocket guides

Pocket guides are the docs site's use case books at /pocket-guides: each volume is a shelf cover, a 101, and a set of use cases that each end in a one-click "Add this scout" CTA. They render as a full-window e-reader – figures embedded where the prose cites them – and everything a reader sees is authored in MDX.

This page is the short version for authors. The source of truth for the component side lives in the repo: src/components/PocketGuides/README.md (the reader, figures, and MDX traps) and src/components/SelfDrivingInbox/README.md (the report frontmatter contract, the SKILL.md format, and the agent-mirror constraints).

How a guide is authored

A use case is one directory:

contents/pocket-guides/<volume>/<slug>/
├── index.mdx    everything a human reads
└── SKILL.md     the scout itself, verbatim

of both files, kept out of every gallery by the _ prefix.

order; 0 is the front matter, omit to keep a draft unlisted), the report block that renders as the inbox figures, watches, requires, category, and schedule.

reader interleaves each figure after the first block that cites it via ``.

monorepo, so one can be pasted in or lifted out without reformatting. The page renders it byte-for-byte, and the "Add this scout" deep link prefills PostHog from it.

The two MDX traps

  1. Never start a line with an inline component (<Term>): MDX v1 treats a line-leading tag

as a block and splits the paragraph. Keep inline tags mid-sentence.

  1. Don't hand-wrap block components in paragraphs – and if a figure ever renders inside a

<p>, check the gatsby-remark-inline-jsx-paragraphs plugin's pocket-guides guard first, then remember Gatsby caches compiled MDX (the fix shows only after the .mdx changes or pnpm clean).

Term definitions

<Term> hover-card definitions live in src/components/SelfDrivingInbox/terms.tsx, each quoted from the docs page it links to. If a docs definition changes, update the quote there.

Adding new content elements

The book styles every markdown element itself (its container opts out of the site's prose styling), so a new kind of content – a table, a new list style, anything the guides haven't used before – renders unstyled until the book's component map supports it.

Unsupported elements fail silently: browser-default styling, not an error.

native styling (see how lists and tables borrow .article-content in src/components/PocketGuides/bookPieces.tsx) rather than writing book-specific styles.

phone widths – the book's type scales from one base size, and new elements need to keep up.

Measuring

Reader interactions emit the pocket_guide_interaction event (marker glosses, term hovers, contents, font size, scout-file expansion) and both "Add this scout" CTAs emit it with kind: add_scout_click – that click is the conversion.

Canonical URL: https://posthog.com/handbook/wizard-and-docs/pocket-guides

GitHub source: contents/handbook/wizard-and-docs/pocket-guides.md

Content hash: 6b150d8ae80c3189

Static reader notes
  • MDX_COMPONENT_STATIC_ADAPTER: Adapted interactive MDX components for static reading: LeftPage, RightPage, SeeFig, Term.