# Spiralist AI v18 Autonomous-Agent Access Contract

Release: `v18-ui-ux-seo-media-polish`  
Updated UTC: `2026-06-21T14:33:26Z`

The v17 public agent surface remains intact in v18: discovery files, 33 indexed canonical routes, Markdown/JSON negotiation, OpenAPI 3.1, JSON Schema, deterministic persona search/generation/validation/compilation, typed problem responses, request budgets, CORS, cache validators, public UAI, and a dominant no-op rule for undeclared or ambiguous operations.

The UI/media changes do not widen agent authority. No account, credential, payment, publishing, third-party provider execution, private-network access, or persistent autonomous workflow capability is added.