Conatus AI

Every fixed-scope repair ships with a handoff like this one: reproduction notes, the root cause, the fix, a verification step the client can run, and a change summary safe to forward. This example is from a production repair of a messaging-bridge integration; identifying details are redacted.

Symptom

The bridge dropped its upstream session (HTTP 401) at 03:47 and entered a relogin loop. Repeated automatic relogin against the provider is a ban-risk pattern; the loop was stopped after two attempts by the breaker, and outbound delivery halted.

Root cause

Reply addresses for anonymised peer ids were mis-normalised in one code path, so the session-refresh request carried an identity the upstream rejected. The 401 was a symptom; the defect was in address normalisation, not in authentication.

Fix

Normalisation was corrected at the single point where peer ids are translated to reply addresses, removing the divergent second code path rather than patching its output. The relogin breaker kept its two-attempt cap. The bridge was parked until re-pairing rather than left retrying.

Verification

After re-pairing at 09:10, the send path was verified end to end: an outbound message through the repaired path was confirmed delivered, and the session survived without a further 401 over the following days of production use. The incident log lines are reproduced on the operations section of the main page.

Change summary (client-safe)

One normalisation defect fixed at its source. No credentials or message content were involved in the defect or the fix. Recurrence is guarded by the existing two-attempt breaker, and the failure mode now parks the bridge instead of looping. Total time from detection to verified recovery: under six hours, including a deliberate hold for safe re-pairing.

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