Frontend Harness Slides

Build HTML slides that survive iteration. This skill does not provide a starter project or require React, Vite, Tailwind, Playwright, or any other stack. Its unit is the harness contract: stable frame address, registry, fixed stage, frozen mode, audit surface, visual checks, and verified handoff.

Pre-Build Alignment

Use explicit user requirements. An inferred or recommended default is a working plan, not an explicit user requirement. For a small edit with clear requirements to an existing deck, preserve the current stack, deck root, and visual system except where the user requests a change, and proceed.

Inspect discoverable facts first: source material, the existing deck, the repo, a deployed URL, and project files. Ask only unresolved decisions that materially affect the result or scope. Do not re-ask a path, style, stage, stack, density, navigation, or delivery target the user already gave.