- Attribute matrix: keys, types, page slug, SEO, SSR, sitewide, fields, slots.
- Origin allowlists on PUBLIC keys; secrets never in browser config.
- Powered-by server enforcement.
Interactive APIs: Content API · Swagger.
Developers · Advanced
Integration contract
Canonical attribute, SEO injection, key, and security rules live in docs/sdk-overlay-contract-v1.md — this page is the customer-facing summary.