Cloud agent planning can't build the plan

Support Bug Reports
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1

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

In the cloud agents interface, I had my agent build a really nice plan. But when I hit the “Build” button it changes view for just a moment before popping back into the plan view before I hit “Build”. It can’t build the plan.

Feels related to the issue with agents stuck in Ask mode, perhaps?

Steps to Reproduce

Cloud agent → plan mode → iterate in plan mode with the agent → ask it to build the plan

Expected Behavior

The agent should be able to build the plan in agent mode just like in normal IDE.

Screenshots / Screen Recordings

Operating System

MacOS

Version Information

Version: 3.1.17
VSCode Version: 1.105.1
Commit: fce1e9ab7844f9ea35793da01e634aa7e50bce90
Date: 2026-04-19T19:33:58.189Z
Layout: glass
Build Type: Stable
Release Track: Default
Electron: 39.8.1
Chromium: 142.0.7444.265
Node.js: 22.22.1
V8: 14.2.231.22-electron.0
OS: Darwin arm64 24.6.0

Does this stop you from using Cursor

No - Cursor works, but with this issue

5

Hey, this is a known bug. Cloud agents currently don’t have a working way to exit plan mode. The SwitchMode tool is disabled for background agents, and the Build button in Glass is a silent no-op. It’s the same root cause as your report about stuck in Ask Mode Cloud Agent stuck in Ask Mode.

We’ve reported it internally, but I can’t share an exact ETA for the fix yet.

Temporary workarounds:

  • Start the cloud agent directly in agent mode, without plan mode, or
  • Use plan mode in the IDE agent. SwitchMode works there, and Build switches to agent mode.

If there’s an update on the fix, I’ll post it in the thread.