Extract Voice / Screen Reader Data

Interpretation-only companion to create-voice. This skill does not extract data from Figma. It reads {cachePath}/{componentSlug}-_base.json (produced by the uSpec Extract Figma plugin), applies the same reasoning layer as create-voice, and writes the finalized VoiceSpecData object to disk for the create-component-md orchestrator.

Quality contract: every reasoning step (visual parts listing, merge analysis, focus-stop counting, state grouping with A11Y_AXES filter, behavioral state detection, slot scenario selection, state-to-variant mapping, platform section population, audit) mirrors create-voice/SKILL.md and its platform reference files.

Batch-mode contract. This skill MUST NOT call AskQuestion, prompt for confirmation, or pause for user input. Behavioral states are inferred from optionalContext and platform defaults; if a state can't be inferred, omit it rather than asking. On missing _base.json sections, abort with a single-line diagnostic. No mid-interpretation clarifications.

Invocation Contract

The orchestrator calls this skill with these inputs (already resolved — do NOT re-parse URLs or re-read uspecs.config.json):

• componentSlug — filename-safe slug
• cachePath — cache directory, typically .uspec-cache/{componentSlug}/
• optionalContext — free-form user context. Especially important for voice specs — behavioral states ("single-select vs multi-select", "collapsed vs expanded", "validation error") are typically only discoverable from user context.
• mcpProvider — figma-console or figma-mcp (only used if a Step 3-delta escape hatch fires)
• deltaAvailable — boolean derived from _base.json._meta.fileKey + nodeId. Plugin exports normally make this true; a separately-passed figmaLink is not required.
• apiDictionaryPath — absolute or workspace-relative path to {cachePath}/{componentSlug}-api-dictionary.json. Optional. When present, the file is the canonical vocabulary for axis/value/sub-component/state naming (see Step 2.5). When absent, the skill continues with _dictionaryUnavailable: true in its output envelope.
• evidencePath — optional. Path to {cachePath}/{componentSlug}-evidence-voice.json from CLI prepare. When present and hash-valid, use data as the Step 3 working evidence set.