Session: How can we quickly delete the whole draft/unsent message?

Bug Description
how can we quickly select the whole text from the message and delete it? currently if i have a long prompt i either have to backslash-remove everything, or do some sort of ctrl+c or exit in order to reset the message input field

Environment Info

• Platform: darwin
• Terminal: tmux
• Version: 2.1.145
• Feedback ID: 69e4a65e-15f9-42ce-b9cd-3f329a3c17d1

Errors

[{"error":"Error: Error normalizing tool input (requestId=req_011CbDea4hWUv9TUGNgjNV9L, messageId=msg_01Vmz9Er2x6fCuLs3Wxw1GYw): ZodError: [\n  {\n    \"code\": \"unrecognized_keys\",\n    \"keys\": [\n      \"timeout_ms\"\n    ],\n    \"path\": [],\n    \"message\": \"Unrecognized key: \\\"timeout_ms\\\"\"\n  }\n]\n    at <anonymous> (/$bunfs/root/src/entrypoints/cli.js:4985:1105)\n    at map (native:1:11)\n    at MW_ (/$bunfs/root/src/entrypoints/cli.js:4985:561)\n    at sIK (/$bunfs/root/src/entrypoints/cli.js:9087:11774)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-20T10:17:29.014Z"}]