It is 11:47 on a Tuesday. An agent finishes a long-running task, decides the team should know, and calls post_message with channel: "#general" . The message is half a sentence, a stray code block, and a JSON dump of an internal error. Two hundred people see it before anyone can delete it. Rate limits would not have helped. The agent was within its budget. The first call was the one you wanted to stop, and rate limiting is a tool for the hundredth call, not the first. The fix is not throttling. T

Slack MCP Channel Allowlists: Stopping Agents Posting to #general
PolicyLayer
