IR

• 1. One IR document per api
• 2. Top-level layout
• 3. Common members
• 4. Declarations
• 5. Schemas
• 6. Origins and derivedFrom
• 7. The operation
• 8. Wire formats and paging styles
• 9. Canonical ids and ordering
• 10. Byte-stable serialisation
• 11. The source-location side table
• 12. The OpenAPI mapping
• 13. Schema forms (amendment 2026-10-12, M1)