[BUG] Caps Lock key inserts raw escape sequence "[57358u" in chat input (VS Code 1.112.0 / macOS)

[thomasjoos-dev]

Does this issue occur when all extensions are disabled?: Yes/No

• VS Code Version:
• OS Version:

Steps to Reproduce:

1. Install VS Code 1.112.0 on macOS Sequoia (arm64)
2. Open the Claude Code extension panel in VS Code
3. Click into the chat input field
4. Press the Caps Lock key
5. Observe that [57358u is inserted as literal text into the input field

Expected:
Caps Lock toggles capitalization. Nothing is inserted into the chat input field.

Actual:
The raw Kitty keyboard protocol escape sequence [57358u (the escape code for
Caps Lock) is inserted as literal text into the chat input field.

settings:

• OS: macOS Sequoia (arm64)
• VS Code version: 1.112.0
• Claude Code versie: 2.1.83

[AltayAkkus]

Same error on my end!

[wookkl]

Same!

[xixihhhh]

Same!

[wmzspace]

+1

[HLGRL]

+1

[jovid18]

+1

[Danielevko]

+1

[AltayAkkus]

Fix

1. Open the VS Code User Settings JSON
   Command palette (CMD + Shift + P) -> Preferences: Open User Settings (JSON)
2. Disable the Kitty Keyboard protocol

"terminal.integrated.enableKittyKeyboardProtocol": false

3. Restart VS Code

CC

@thomasjoos-dev @wookkl @xixihhhh @wmzspace @HLGRL @jovid18 @Danielevko

[HLGRL]

Fix

1. Open the VS Code User Settings JSON
   Command palette (CMD + Shift + P) -> Preferences: Open User Settings (JSON)
2. Disable the Kitty Keyboard protocol

"terminal.integrated.enableKittyKeyboardProtocol": false

3. Restart VS Code

CC

Thanks it works!

[GakkiLov3]

Fix  修复

1. Open the VS Code User Settings JSON打开 VS Code 用户设置 JSON
   Command palette (CMD + Shift + P) -> Preferences: Open User Settings (JSON)命令调色板（CMD + Shift + P） -> Preferences: Open User Settings (JSON)
2. Disable the Kitty Keyboard protocol禁用 Kitty 键盘协议

"terminal.integrated.enableKittyKeyboardProtocol": false

3. Restart VS Code  重启 VS Code（重启 VS Code）

CC

Works for me! Thanks a lot!

[AgainPsychoX]

Related anthropics/claude-code#38624