Plan mode shows “Built” without clicking Build

Support Bug Reports
1

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

Product/Context

  • Feature: Plan mode UI

Environment

  • OS: macOS (darwin 24.6.0)
  • Browser/Client: Cursor app (if different, specify)

Actual

  • After the agent created the plan, the UI showed a “Built” state even though I didn’t click Build.

Steps to Reproduce

Repro Steps (what I did)

  1. Entered Plan mode with GPT-5.1 Codex Max (MAX mode).
  2. Let the agent create a plan.
  3. Observed the plan showing “Built” without clicking the Build button.

Workaround tried

  • Reloaded the window, then quickly clicked the Build button to proceed.

Questions

  • Is this a known issue with auto-marking plans as Built?
  • Any logs I can provide to help diagnose?

Expected Behavior

  • Stay in plan mode after the plan is created; Build should only trigger when I click the Build button.

Screenshots / Screen Recordings

Screenshot_2025-12-05_at_6.56.22_PM.png
Screenshot_2025-12-05_at_6.56.22_PM.png565×177 3.5 KB

Operating System

MacOS

Current Cursor Version (Menu → About Cursor → Copy)

Version: 2.1.49 (Universal)
VSCode Version: 1.105.1
Commit: 21a2ed198584d56a91c0b996d1a09c93f8538440
Date: 2025-12-05T07:49:06.016Z
Electron: 37.7.0
Chromium: 138.0.7204.251
Node.js: 22.20.0
V8: 13.8.258.32-electron.0
OS: Darwin arm64 24.6.0

For AI issues: which model did you use?

  • Cursor (GPT-5.1 Codex Max, MAX mode)

Does this stop you from using Cursor

No - Cursor works, but with this issue

1 Like
2

Hey, thanks for the report. We need more data for diagnostics.

Could you please:

  • Attach console logs from Help > Toggle Developer Tools > Console at the moment the state changes
  • Send the Request IDs from chat for the message where the agent created the plan and for the following step. How to get them: Getting a Request ID | Cursor Docs
  • Clarify if it reproduces:
  • on a different model in Plan mode
  • with MAX mode disabled
  • after restarting Cursor

Also share the approximate time of occurrence and the frequency.

3

Quick update:

  • Model/Mode: Reproduced with MAX mode disabled (standard Plan mode).
  • Restarted Cursor: Yes; still reproduced after restart.
  • Occurrence count: Now 3 times (twice with MAX on, once with MAX off after restart).
  • Request IDs:
    • Plan creation (MAX on): de4467a0-46fc-48cb-88e3-3accd9b0e165
    • Post-restart, MAX off: febf757e-c399-40ed-9caa-724c504aba33
  • Approx time of latest occurrence: (add your local time/UTC for the MAX-off run)
  • Console logs: Captured at the moment the state changed; available in logs/console-log.md (can provide a specific excerpt/timestamp window if you want).

Let me know if you want me to:

1 Like
4

I got this bug too, just right after I update cursor tonight;

5

Reload the window and promptly click the “Build” button before the window displays “Built.” Refrain from utilizing the GPT-5.1 Codex Max model in “Plan” mode due to this bug.

6

I got the same issue. As a workaround, what I do is to:

  • Select “agent” mode
  • I type “implement the plan”
1 Like
7

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