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Incident bot offered one-click production breakage; four broken contracts surfaced

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On a Sunday morning, an incident bot on a small Kubernetes platform flagged 20 applications as off the release branch and offered a one-click repair that would have re-deployed them to the wrong branch. The author had changed the platform's rule for which branch the hub runs but had not updated three places that still encoded the old rule. Pressing Deny exposed a chain of failures: Slack interactivity was disabled, the card came from the wrong Slack app, and the re-authentication command pointed at the wrong endpoint. A final reply overwrote the original card, removing the button the author needed. The author attributes all four failures to outdated or untested contracts between components.

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