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 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 →