OPERATIONS

Evidence pack

What is proven live today (health, extract, cad_scene inference, partner import) versus what is not claimed (superiority scores, latency SLAs, SolidWorks native).

Proven live

Public health + statusLive

fourechelon.com/api/health, /api/status, status.fourechelon.com

CAD extract → extraction.v1Live (paid key)

POST /api/v1/cad/extract; golden-path:production

cad_scene → Rowe responseLive (paid key)

POST /api/v1/responses with four-cad.cad_scene.v1

Partner feature-tree importLive (paid key)

POST /api/v1/cad/import-feature-tree; 401 without key

SolidWorks nativeRejected (415)

Export STEP; intentional, not a bug

Not claimed

Vendor superiority scoresNot claimed

No head-to-head accuracy numbers in this pack

Latency SLAs / p50-p99Not claimed

Status latencyMs is a probe sample only

Native SolidWorks parseOut of scope

Use STEP export

MT Code / live Checkout demoOut of scope

Use an existing paid key for API demos

Reproduce

npm run smoke:production, npm run uptime:probes, and with a paid key FOUR_ECHELON_API_KEY=$FOUR_ECHELON_API_KEY npm run golden-path:production. Fixed fixtures: CAD eval sheet. Full narrative: CAD demo path.