| name | figma-prototype |
| description | Use when wiring or auditing Figma prototypes, including clicks, navigation, overlays, transitions, flow starts, scroll-fixed chrome, reaction maps, or inferred flows from static frames. Companion domain skill for figma-mcp-express prototype work. |
Figma Prototype Wiring
Companion domain layer for prototype judgment. It does not redefine MCP execution
rules: use figma-mcp-express for tool discovery, batch syntax, origin/channel,
and validation; use this skill for interaction intent, transition choice, overlay
limits, flow audits, and scroll-fixed behavior.
First Checks
- Figma Desktop open with the plugin running; load the
figma-mcp-express skill first for tool/batch discipline.
- Prototype reactions live on ANY node (buttons, instances), not just frames — and prototypes are per-page.
- Overlay appearance (position/scrim/dismiss) is read-only via the API. You can open an overlay (
navigation:"OVERLAY") but not place or style it — that is configured in the Figma UI on the destination frame.
Workflow
- Scope — given
nodeIds, wire those frames; otherwise use the current page.
- Read current state — run
get_prototype for starts, edges, overlays, and existing reactions.
- Analyze frames — use
get_design_context for structure and scan_text_nodes for CTA labels.
- Infer only with evidence — require at least two corroborating signals before auto-wiring; flag single-signal guesses.
- Wire — batch
set_reactions ops plus set_prototype_start for the entry frame.
- Choose transitions by similarity — near-identical screens use
SMART_ANIMATE; distinct screens use directional PUSH; peers use DISSOLVE; overlays use MOVE_IN/MOVE_OUT.
- Verify — re-run
get_prototype; flag dead ends, missing back paths, mobile hover triggers, unwired CTAs, and heavy PUSH between same-named frames.
Reference Router
| Need | Read |
|---|
| Actions, triggers, transitions, overlays, component variants, flow starts | references/prototype-patterns.md |
| Infer flow from static frames, audit existing prototypes, reaction maps, conservative fixes | references/prototype-audit.md |
| Scrollable frames, sticky headers, pinned tab bars, fixed children | references/prototype-scroll.md |
Cannot Do
- Set overlay position/scrim/dismiss (read-only API) — only open the overlay.
- State interactions belong on the component variants (CHANGE_TO), not stamped per instance from outside.
- Create files, FigJam, or Slides.
