feat(plugins): System Pack — OS notifications + text-to-speech - #30
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Two surfaces that turn a background agent into something that can politely interrupt the human without flipping them to a chat window. Both cross-platform via OS-shipped utilities; no Node deps. Tools shipped (2): agentmark_notify native OS notification (title + body) agentmark_voice_speak text-to-speech via OS engine Platform mapping: macOS: osascript display notification + say Windows: PowerShell Windows.UI.Notifications + System.Speech.Synthesis Linux: notify-send (libnotify-bin) + espeak-ng / espeak Use cases: - "I'm waiting on your input" → notify - "Background job complete" → notify with sound - Mid-flow status updates without screen takeover → speak - Accessibility-oriented audio confirmation of completed tasks Both are async-fire-and-forget; agents don't wait for user reaction. A future PR adds voice_listen (STT) + interactive notification buttons. Tests (4 new, 346 total): plugin registration, tool surface, argument validation. Live OS-toast / TTS is smoke-tested on Mac + Win VMs. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Summary
Tools
Why
Closes the "agent can interrupt the human politely" gap. Today an MCP server can output text to the chat window, but if the user is in another app, they won't see it until they switch back. These two tools let the agent push a system-level signal:
Both fire-and-forget in v0. STT (`voice_listen`) and interactive notification buttons land in a follow-up.
Test plan
🤖 Generated with Claude Code