Compile references into a design grammar

Registry-first artifact boundary

When .styleseed/project.json and .styleseed/artifacts/index.json exist, resolve the requested artifact ID first, then read only .styleseed/bundles/<artifact-id>.md and .styleseed/manifests/<artifact-id>.json. Never fall back to the global legacy bundle for a registry project. Legacy projects may use .styleseed/effective-rules.md only when no registry exists.

Do not merely imitate the supplied screen. Read PRODUCT-PRINCIPLES.md, RULESETS.md,
ADAPTERS.md, and REFERENCE-COMPILER.md, then execute the compiler pipeline in full.

Workflow

1. Ingest every supplied reference and assign evidence IDs (R1, R2, ...). If a URL can be
   rendered, capture it. If an image cannot be seen, stop claiming visual analysis for it.
2. Separate references by surface adapter and job. Do not merge a marketing homepage with an app
   dashboard unless the user explicitly wants both languages connected.
3. Observe and measure the twelve axes. Every rule cites evidence IDs and a confidence level.
4. Resolve contradictions instead of averaging them. Explain any material choice briefly.
5. Choose the nearest built-in fallback grammar and adapter, then compile the project artifacts required by
   REFERENCE-COMPILER.md under .styleseed/rulesets/<slug>/.
6. Update STYLESEED.md to select reference:<slug> while preserving bounded brand choices.
7. Validate transfer: apply the grammar to one representative screen not present in the source
   set, run /ss-score, then /ss-verify if renderable. Fix and repeat to the gate floor.
8. Report what was learned, what remains low-confidence, where the artifacts live, and the
   validation result.

Rules

• Visible evidence before adjectives. “Calm” is not a rule; the spacing, type, color, hierarchy,
  and motion decisions that create calm are rules.
• Never copy protected assets, brand marks, or prose.
• One reference produces a provisional grammar. Say so and keep confidence low where warranted.
• The generated grammar is project-local. Do not edit RULESETS.md or publish it as built-in.
• Core invariants and accessibility remain non-negotiable.