/config dialog immediately dismissed without showing options

Description

/config command is immediately dismissed with "Config dialog dismissed" message, without ever showing the configuration dialog UI.

Reproduction Steps

1. Launch Claude Code (claude or with --dangerously-skip-permissions)
2. Type /config and press Enter
3. Dialog is immediately dismissed — no options are shown

Environment

• Claude Code version: v2.1.72
• OS: macOS (Darwin 25.3.0)
• Machine: MacBook Air (Apple Silicon)
• Shell: zsh
• Terminals tested: Terminal.app, and at least one other terminal emulator — same result in both
• Launch modes tested: Normal (claude) and --dangerously-skip-permissions — same result in both

Additional Context

• /doctor also gets dismissed on first attempt, but sometimes works on second attempt
• /doctor diagnostics showed a keybinding error (cmd+v conflicting with macOS system paste) — this was fixed but did not resolve the /config issue
• Similar pattern has been reported for /usage in #21888 and #15949
• Version was updated from earlier to v2.1.72 — issue persists across updates

Screenshots

The status bar shows the command result:

> /config
  └ Config dialog dismissed

No configuration UI is ever rendered.