Authoring open-slide pages

This skill is the technical reference for everything that happens inside slides/<id>/index.tsx. It does not own a workflow:

• create-slide owns "draft a new deck" — it asks the user scoping questions, then delegates the how to this skill.
• apply-comments owns "process inspector markers" — it finds markers and applies edits, but the edits themselves follow the rules here.
• current-slide resolves deictic references ("this page", "the slide I'm on") to a concrete slideId + pageIndex. Consult it first when the user references the current slide without naming it, then come back here for how to edit it.
• Any ad-hoc slide edit (manual tweak, one-off fix) should also consult this skill before touching the file.

When any of those paths reach the point of writing React code for a page, this is the source of truth. Do not duplicate the knowledge below into other skills — link here instead.

Primitive references

Each framework primitive has a full reference file under references/ in this skill — contract, worked examples, and its own anti-patterns. This file keeps only the always-on rules and a short summary per primitive. Read the relevant reference file before using a primitive on a page: