Agent webhook events

Events

`agent.connected`	An agent has connected to the API
`agent.lost`	An agent has been marked as lost. This happens when Buildkite stops receiving pings from the agent
`agent.disconnected`	An agent has disconnected. This happens when the agent shuts down and disconnects from the API
`agent.stopping`	An agent is stopping. This happens when an agent is instructed to stop from the API. It first transitions to stopping and finishes any current jobs
`agent.stopped`	An agent has stopped. This happens when an agent is instructed to stop from the API. It can be graceful or forceful

Request body data

`agent`	The Agent this notification relates to
`sender`	The user who created the webhook

Example request body:

{
  "event": "agent.connected",
  "agent": {
    "...": "..."
  },
  "sender": {
    "id": "8a7693f8-dbae-4783-9137-84090fce9045",
    "name": "Some Person"
  }
}