Cloud agent planning can't build the plan

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

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.

Hey @DavidClark314 as promised, I’m back with an update.

The root cause I mentioned above, cloud agents getting stuck in plan mode, is improved in the latest stable release. The plan to agent transition for cloud agents now works. You’re on 3.1.17, so first update Cursor to the latest version and try again.

That said, the exact symptom you described, Build briefly switching views and then bouncing back to plan, is related to the Build button in Glass, and it can still happen. This issue is still open and we don’t have an exact ETA yet.

If Build still kicks you back to plan after updating, let me know. The thread auto-closed, so please start a new one and include the Request ID, and we’ll take a look at a fresh case.