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Agent troubleshooting

The failures we actually see, and what fixes each one.

Last updated 2026-07-10

Connection

SymptomCauseFix
run cadenza connect firstNo linked key on this machineRun npx cadenza connect and approve in the browser
Approval page never loadsGrant expired (10 minute TTL)Re-run connect; approve promptly
401 on every callKey revoked or expiredReconnect; check your account's connections
403 with a scope messageKey approved with fewer scopes than the tool needsReconnect and approve the needed scopes

Tools

SymptomCauseFix
blocked outcomeSafety policy refused the contentRead the reason; political content and unconsented likeness are not generatable
render_failedEvery routable model failedRare; retry, and check /build for incident notes
Tools missing from the clientConfig not loadedRestart the client session after installing

Run the doctor

terminal
npx cadenza doctor

It checks four things in one pass: the Node runtime, API reachability, whether the stored key is still accepted by the server, and which agent clients have the Cadenza MCP server installed. npx cadenza disconnect removes the stored key from the machine.

Still stuck

Check the build board for the current state of remote endpoints, and reach out through the beta channel you joined with.

Agent troubleshooting | Cadenza Docs