Cursor Automations: Always-On Coding Agents Triggered by Slack, Linear, PagerDuty

Cursor shipped the biggest paradigm shift in AI coding this week. Automations are always-on agents that activate from external events — merged PRs, PagerDuty incidents, Slack messages, Linear issues, cron schedules, or custom webhooks. The agent spins up a cloud sandbox, follows your instructions using configured MCPs and models, self-verifies, and outputs results. Cursor says they already run hundreds per hour on their own codebase. This is the shift from "prompt and wait" to event-driven autonomous engineering. Use cases in production: PagerDuty incident triggers investigation via Datadog MCP, proposes a fix PR, and notifies on-call in Slack. Daily agents that review merged code and add missing test coverage. Bug triage bots that check for duplicates, create Linear issues, and reply in Slack with root cause analysis. (Cursor Blog | TechCrunch)