# Curbi v22 — citeable facts and one retrieval catalog

Release date 2026-10-27. Live https://curbi.io/answers/ . Pinned deployment https://e93d872d.curbi-landing.pages.dev . Rollback https://630e0c38.curbi-landing.pages.dev .

## Changes
Six direct answers generated from v22/answers.json into visible HTML, matching FAQ structured data, canonical citation anchors, Markdown and /docs/catalog.json. Stable IDs and explicitly scoped Markdown byte hashes give engineering a fixed retrieval source. /evidence/ and /release.json publish bounded synthetic engineering evidence and availability. Canonical links on primary pages; sitemap, manifest, footer and optional llms.txt map the new references. No new popup, marketing statistic or hosted-service claim.

Private README, master stack, board, component registry and website-state document refreshed. editorial review study preserved with a sourced correction note; frozen AEO prompt set is recorded as not run. engineering gets MCP-DISTRIBUTION-001: native checker tools, compatible search/fetch, narrowly scoped skill and real-client tests. No hosted MCP or plugin approval exists yet. The Check API remains distinct from preventive execution; production signing/provider writes stay off.

## Evidence
69 targeted site checks pass, plus 74 Worker corpus cases, 4 raw requests and 2 executable documentation examples. 554 internal links/anchors checked across nine primary pages. Deterministic rebuild. CUA exercised answer anchors and 390px layout; no console/CSP errors. LIVE-v22.json records ten production endpoints, all six document/hash round trips and manifest-to-API execution. Cloudflare can transform HTML. No current indexation, citation frequency, installs or customer outcomes were measured.

Lab docs validation: 19 components, 50 ontology entities, 41 relationships, eleven work-order fields; docs consistency only, not a runtime qualification. Older D1/engine/Bonsai evidence remains pinned and was not re-run as a full stack.

Build: python3 v17/build.py. v22/build.py is subordinate. All primary pages retain local fonts, strict self-script CSP and content-addressed bundles. No production keys, provider permissions, paid inference, package publication or directory submission.