[macOS] Text selection auto-copies while Copilot CLI is active

[ValerioCostantino-TomTom]

Description

When Copilot CLI is open, selecting text in the terminal causes it to be automatically copied. This only happens while Copilot CLI is running and goes away on exit, but returns every time Copilot is reopened.

Steps to Reproduce

1. Open Copilot CLI (copilot)
2. Select any text in the terminal with the mouse

Expected Behavior

Text selection behaves normally — no auto-copy on selection.

Actual Behavior

Selected text is automatically copied on selection while Copilot CLI is active.

Environment

• Terminal emulators affected: iTerm2, macOS Terminal.app
• OS: macOS
• Shell: zsh

Notes

• Does not persist after exiting Copilot.
• Not related to zsh configuration (verified).
• Workaround: Hold Option while selecting text to bypass mouse reporting and use native terminal selection.

[devm33]

Hi @ValerioCostantino-TomTom, you can disable the copy on select behavior by adding:

"copy_on_select": false

to your ~/.copilot/config.json

See copilot help config for more info.