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Sweep 01 Oct 2026 · 17:27Z Build v2.1.287 508 read Stable v2.1.285 Latest v2.1.287 Next v2.1.287 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.286 ·

Plugin test scans cover SubagentStop hooks, MCP connections and toasts

The plugin test scan list now includes the SubagentStop hook and calls to connect to MCP servers and show toasts, and drops two calls

Under the hood Internal Changes
JSON All of v2.1.286
Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
Claude TestArea: what it touches
Internal ChangesKind: in v2.1.286,
Internal ChangesSection of the release
What

The list Claude Code uses when scanning a plugin under test changed:

  • The SubagentStop hook, which runs when a subagent (a helper agent Claude starts for part of a task) finishes, is now listed.
  • The mcp.connect call, for connecting to an MCP server, is now listed.
  • The ui.toast call, for showing a short pop-up notice, is now listed.
  • The clock.after and command.run calls are no longer listed.
Why

Plugins that react when a subagent finishes, connect to MCP servers or show notices fall inside what the test scan covers.

How sure we are
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubtIt is unclear whether this list limits what plugins may do or only describes it.

See this entry in the whole of v2.1.286 →

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