[Bug] `SendMessage` tool is not exposed to Claude, can't resume agents anymore
Resolved 💬 2 comments Opened Mar 19, 2026 by maks244 Closed Mar 19, 2026
Bug Description
Claude itself states: "I don't see a to field or SendMessage function exposed in any of my available tools."
The tool is mentioned in patch notes from 2.1.77 but doesn't appear to be documented or exposed to Claude.
This also breaks resuming agents since 2.1.77 made it so the Agent tool no longer accepts a resume parameter.
Environment Info
- Platform: win32
- Terminal: vscode
- Version: 2.1.79
- Feedback ID: 40fdb676-7609-47d5-95a4-aadebd07d293
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