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config/mount
<spec> is your OpenAPI spec’s path, <mount> is the relative server URL it declares, and <basePath> is the path doctor read out of VENDO_BASE_URL. When VENDO_BASE_URL is unset entirely, the message instead reads VENDO_BASE_URL is unset in place of the path comparison, same cause, same fix. check: config/mount · error_code: E-CFG-003 · doctor exits: 1

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What you’re seeing

The app looks perfect. Every page renders and every number the agent quotes fails, because the client, the server, and the OpenAPI spec disagree about the deployment’s path prefix.

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Why

Your deployment’s path prefix has exactly one home: VENDO_BASE_URL. A spec that declares a different relative server mount is the same disagreement by another route. With no base URL set, the wire learns the bare request origin instead, so a prefix-free stored path lands one prefix short.

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The fix

Set VENDO_BASE_URL to the app’s full public URL, prefix included, and pass that same prefix into the provider.
.env.local
app/layout.tsx
If the app isn’t actually mounted under a prefix, drop the relative servers[0].url from the spec instead. Re-run npx vendo doctor, which reports this same code if the disagreement remains.
  • E-CFG-001: a missing .vendo/ file, a different kind of config gap
  • E-WIRE-004: the provider mount this base URL feeds into