# Validation contract

Format: `spiralist-public-uai-v1`  
Release: `v18-ui-ux-seo-media-polish`  
Updated UTC: `2026-06-21T14:33:26Z`  
Visibility: public, read-only, no secrets  
Authority: released code, OpenAPI, versioned documentation, validation evidence, and SHA-256-indexed research

Release claims require validation of PHP syntax, JavaScript syntax, JSON/YAML/XML parsing, OpenAPI structure, JSON Schema, HTTP routes, redirects, content negotiation, CORS, cache validators, typed no-op behavior, deterministic persona output, UAI hashes, research hashes, semantic browser behavior, mobile layout, persona quality, package manifests, and clean ZIP extraction.

Canonical result files:
- `/docs/agent-api-test-results-v18.json`
- `/docs/browser-qa-v18-ui-ux-seo-media-polish.json`
- `/docs/seo-qa-v18.json`
- `/docs/persona-quality-engine-test-results-v18.json`
- `/docs/package-validation-v18.json`
- `/docs/clean-extraction-validation-v18.json`
- `/docs/agent-readiness/validation-report-v18.md`

Structural validation is evidence of contract conformance, not universal safety certification.