Wrapping Zoo for CAD conversion in an MCP server, the expected headline feature, text to CAD, was not there: the REST endpoint returns 404, and the copilot now returns KCL source, not STEP. Agent builders are chasing vendor APIs that move under them.
From the Grok pain-radar digests, Oct 31-Nov 1 2026 (Oct 31 9:41 PM ET through Nov 1 7:41 AM ET digests plus the Haitch overnight edition). Verified live 2026-11-01: issue/PR read; title and state confirmed.