Source Intelligence

DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

All of v2.1.105 Home All releases olderv2.1.104 v2.1.107newer
Claude Code v2.1.105

Plugin Monitors (Background Watch Scripts)

What

Plugins can now define persistent background monitors that stream events into the conversation as <task_notification> events.

Details
  • Define monitors in a monitors/monitors.json file at the plugin root, or inline via the monitors field in plugin.json
  • Each monitor has: id (unique within plugin), description, command (shell command), and an armTrigger
  • Arm triggers control when monitors start:
  • "always" — arms at session start and on plugin reload
  • "on-skill-invoke:<skill>" — arms the first time a specific skill is dispatched
  • Each stdout line from the monitor command becomes a notification; stderr goes to an output file
  • Monitor IDs are deduped to prevent duplicate spawns on reload
  • Session-scoped: monitors stop when the session ends
Evidence

Monitor schema (search for "monitors.json") and arm triggers (search for "on-skill-invoke")

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.105 →