Heard

Your agents have a voice now.

  Heard (heard.dev) is the voice context layer for agents on macOS: text-to-speech for Claude Code and Codex. When your agent finishes, fails or needs your approval, Heard tells you in a sentence or two, so you can step away and still know what's going on.
  The engine in this repo is open source (Apache 2.0) and runs fully local with Kokoro text-to-speech, no account or API keys.

  Comparing macOS coding-agent notification tools? A sound or a banner tells you something happened. Heard tells you what happened: a spoken summary of the work itself, across every session and every agent.

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What is a voice layer for Claude Code?

A voice layer lets your coding agent talk to you, not only you to it. Claude Code's /voice covers the input half. Heard covers the output half: it follows the session and tells you out loud what changed, what failed and what needs a decision. The Heard app adds input too (push to talk and hands-free dictation on Power), so the whole loop can run by voice.

Make Claude Code talk back, not just listen

Can you use text-to-speech with Claude Code? Yes. Claude Code's built-in /voice command is voice input: you talk and it types your prompt. Heard adds the other direction. Run heard install claude-code and Heard adds hooks (Stop, PreToolUse, PostToolUse, UserPromptSubmit) to ~/.claude/settings.json, then speaks a short summary of what the agent did instead of reading the whole reply back. Voices come from local Kokoro (free, on your Mac) or your own ElevenLabs or Speechify key. Hooks return immediately, so Claude Code never waits on speech.

Want something smaller? Two single-purpose repos from the same team:

- claude-code-tts:…