--tui mode breaks clipboard paste (Cmd+V) — only last character of clipboard content appears

[thobai]

Before opening, please confirm:

• I have searched for duplicate or closed issues

Operating System

macOS 26.3.1

Kiro Version

1.28.1

Bug Description

--tui mode breaks clipboard paste (Cmd+V) — only last character of clipboard content appears

Bug

When using kiro-cli chat --tui, pasting from the system clipboard via Cmd+V (or Edit → Paste) inserts only the last character of the clipboard content instead of the full string. This happens both inside and outside of tmux. The non-TUI mode (kiro-cli chat) handles paste correctly.

Root cause

The TUI appears to process pasted text as individual key events rather than as a single bracketed paste event. The terminal emulator sends the clipboard contents as a rapid stream of characters (wrapped in \e[200~...\e[201~ bracketed paste sequences), but the TUI input handler treats each character as a separate keystroke. The input field gets overwritten on each event, leaving only the final character visible.

This suggests the TUI is not handling crossterm's EnableBracketedPaste / Event::Paste(...) events.

Environment

• kiro-cli: 1.28.1
• macOS: 26.3.1
• Terminal: iTerm2 3.6.9
• Also reproduced outside tmux (direct iTerm2 shell)

Workaround

Use the non-TUI mode for paste-heavy sessions:

kiro-cli chat --resume  # without --tui

Related issues in other Ratatui-based TUIs

• anthropics/claude-code#16753 — identical symptom in Claude Code 2.1.0
• openai/codex#1247 — same architectural limitation in Codex CLI's Rust TUI
• crossterm-rs/crossterm#545 — bracketed paste support in crossterm

Steps to Reproduce

1. Copy any multi-character string to the clipboard (e.g. hello world)
2. Launch kiro-cli chat --tui
3. Press Cmd+V in the input field

Expected: hello world is pasted into the input field
Actual: Only d (the last character of the clipboard content) appears

Expected Behavior

Pasting should work using Cmd+v and paste the whole string

Conversation ID

No response

Additional Context

No response

[github-actions]

🤖 Potential Duplicate Detected

This issue appears to be similar to:

• #6015: Input duplication when switching from English to Korean (IME) without space (85% similar)
• #5010: Copy Pasting image in Kiro Cli (85% similar)
• #4850: Title: Backspace/delete keys cause unexpected edits in Kiro CLI input (85% similar)
• #4701: Vim mode paste leaves cursor 1 character before end of pasted content (85% similar)
• #4534: Using Claude Code causes bugs when copying and pasting. (85% similar)

What happens next?

• ⏰ This issue will be automatically closed in 3 days
• 🏷️ If this is not a duplicate, you can prevent automatic closure by adding a comment or reacting with 👎 to this message.
• 💬 Comment on the original issue if you have additional information

Why is this marked as duplicate?
Both issues describe input handling problems in the CLI chat interface - the new issue reports clipboard paste only showing the last character, while #6015 reports input duplication when switching IME without space. Both involve character-level input processing issues in the TUI mode.

[github-actions]

Thank you for your feedback! 🙏

The 👎 reaction has been noted. The duplicate label has been removed and this issue has been sent back for maintainer review.

A maintainer will review this issue shortly.

[thobai]

This has been fixed in kiro-cli 1.28.2