Story Narrator

Turns a story (already split into scenes) into a set of expressive narration clips — one MP3 per scene — using the ElevenLabs MCP. Each clip is saved as {slug}_part_NN.mp3 so it pairs by index with the scene's image: scene 3's picture and scene 3's narration play together in the final storybook.

When this skill applies

{slug}_scenes.json exists (from scene-splitter) and the user wants per-scene audio. Also applies if the user pastes a story and asks to narrate it — split it first (or narrate paragraph-by-paragraph).

The skill does NOT apply to:

• A single short utterance (call text_to_speech directly).
• Real-time conversational TTS, music, or sound effects.
• Voice cloning (do that separately in ElevenLabs, then bring the voice_id here).

Required tool — the ElevenLabs MCP

The skill calls mcp__elevenlabs__text_to_speech. Confirm it's available before Stage 4. If the MCP isn't connected, tell the user to install it (uvx elevenlabs-mcp with ELEVENLABS_API_KEY set — see https://github.com/elevenlabs/elevenlabs-mcp) and stop. Stages 1–3 (voice choice + narration script) work without it; only generation needs it.