Summary

Adds prompt-chime — a cross-platform notification plugin that plays sounds and toast notifications when Claude finishes responding.

What's included

• prompt-chime/ plugin folder with standard structure (.claude-plugin/plugin.json, skills/, hooks/)
• README entry under Developer Productivity
• marketplace.json entry

Plugin features

• Stop hook fires OS-native audio (Win32 MCI on Windows, afplay on macOS, paplay/aplay on Linux)
• Toast notifications (WinRT, osascript, notify-send)
• 11 chiptune meme sound presets (Mario 1-Up, Zelda secret, Metal Gear alert, etc.)
• Sound profiles, quiet hours, per-project overrides
• /notification-toolkit skill for in-session management
• Zero dependencies, MIT licensed

Quality checklist

• Addresses a real use case (knowing when Claude finishes)
• Doesn't duplicate existing functionality
• Follows the template structure
• Has been tested (54 E2E tests pass)

https://github.com/pick/prompt-chime