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tts

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Updated 10-21 12:51

About this skill

Text to Speech

Use the bundled scripts/speech.mjs from this directory. Node.js and the installed plugin's host-managed Gateway key are required. Do not install an SDK or ask for secrets in chat.

Workflow

  1. Resolve the requested spoken text. For a sample of Junior's voice, use the bundled sample. Do not send unrelated private context or the full persona to the provider.
  2. Use the default junior-v1 preset: a bright, warm, mischievous adult helper with dry humor. Use --delivery plain for serious or sensitive text. Do not present it as an imitation or recording of a real performer.
  3. Write narration to a UTF-8 file. Keep each clip at 1–5000 characters. Generation spends Gateway credits. Do not generate extra variants without a request.
  4. Generate to a fresh .wav path. Inspect an existing file before trying again. Do not automatically retry timeouts or failures: generation may already have spent credits.
  5. Use sendFiles to deliver the returned path as audio/wav. Say it is synthetic narration. For a video, measure the new audio and pass it to the rendering workflow; speech generation alone does not update the video.

Commands and Assets

# Local, no API call: show the reusable voice preset.
node scripts/speech.mjs --profile
Paid: generate the bundled Junior sample.

node scripts/speech.mjs --sample --output /tmp/junior-sample.wav

Paid: generate requested narration.

node scripts/speech.mjs --text-file /tmp/narration.txt --output /tmp/narration.wav

Paid: use the same voice without snark.

node scripts/speech.mjs --text-file /tmp/incident.txt --output /tmp/incident.wav --delivery plain


Read `assets/junior-v1.json` when the user asks how the voice is defined. Read `assets/sample.txt` when previewing the sample script. The script sends delivery instructions separately from text. Do not prepend those directions to narration.

Results are JSON with path, bytes, MIME type, model, voice, profile, delivery, and synthetic status. Use `--help` for the command surface. No key argument is accepted.

## Failures

- Missing host key or HTTP 401/403: ask the operator to check `AI_GATEWAY_API_KEY`, plugin registration, and team speech access, then redeploy. A missing key in the Sandbox is expected. Core's OIDC authentication is not reused by this manifest-only plugin.
- HTTP 402: ask the operator to check credits and spending limits.
- HTTP 404: report that the requested Gemini model is unavailable for the team. Do not silently choose a different model or provider.
- Timeout, provider warning, or bad audio: stop and check Gateway usage before a user-authorized retry. Do not claim that an audio file was created or approved by listening.
- Missing script or Node.js: report plugin setup failure. Do not improvise a token-bearing command.
- Missing credentials: share the preset and script as a recipe, clearly labeled as not generated audio.