Applying changes via Cursor inspector overwrites current agent convo/session history

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1

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

Applying changes via Cursor inspector overwrites current agent convo/session history.

Actual: The agent session history is cleared / overwritten — any conversation in progress is lost.

Impact: Applying a single inspector change wipes an active session, which breaks iterative inspect-and-apply workflows.

Steps to Reproduce

Start a conversation with the Agent in Cursor.
Open the built-in browser and navigate to a local dev server (e.g. localhost:5173).
Use the Cursor Inspector to inspect a UI element.
Click “Apply” to apply a prop change.

The agent session history is cleared / overwritten — any conversation in progress is lost.

Impact: Applying a single inspector change wipes an active session, which breaks iterative inspect-and-apply workflows.

Expected Behavior

The change is applied to the source file; the current agent session (conversation history, in-progress work) is preserved.

Operating System

MacOS

Version Information

Version: 3.3.30
VSCode Version: 1.105.1
Commit: 3dc559280adc5f931ade8e25c7b85393842acf30
Date: 2026-05-09T18:28:42.332Z (1 wk ago)
Layout: editor
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 25.3.0

For AI issues: which model did you use?

Sonnet 4.6

Does this stop you from using Cursor

No - Cursor works, but with this issue

5

Hey, thanks for the detailed report. The repro steps and version info really help.

Repro: clicking Apply in Cursor Inspector either opens a new composer session the old one disappears from the view but stays in history, or it injects changes into the current one. In both cases, the active agent convo breaks. This is a bug on our side, I’ll file an internal ticket.

A couple questions for the ticket:

  • In your case, is the old session actually deleted, or does the view just switch? Can you still find it in the Agents sidebar or chat history?
  • Did you have any text in the input at the moment you clicked Apply?

Workaround for now: before clicking Apply in the inspector, keep the input empty and save the link to the current session via the Agents sidebar so you can return to it. I can’t share an ETA yet, if I get an update I’ll reply in the thread.