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Library / Failure modes / fm.broad-event-listener-noise

A broad event trigger floods the Bot with unrelated content

Severitymedium

SymptomNoisy runs, elevated usage, and unrelated messages becoming part of the Bot's input.

CauseA listener matched on every new message in a channel rather than on a specific signal.

DetectionVisible as usage growth without matching output value, and as off-topic content in the Bot's reasoning.

FixMatch narrowly: a named channel, a ticket link, and an exact phrase rather than every new message. This is a prompt-injection control as much as a cost control, since a broad listener is an untrusted-input firehose feeding a Bot that shares credentials with every other Bot on the account.

high confidencewww.learncursor.dev/learn/cursor-agents/grok-bot-skills-ro ↗fm.broad-event-listener-noise

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