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v1.3.0 — SVG assets, block sizing, opt-in narration

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@kemalyy kemalyy released this 09 Jul 11:33
v1.3.0
95ee300

SVG diagram pipeline + block sizing + opt-in narration. 25 MCP tools. All additive — existing
specs unchanged, no server-side LLM.

Added

  • svg_to_asset tool (25th tool) — turn a Claude-generated SVG string into a packaged asset without
    base64 (raw svg_content); validates <svg>, returns an AssetRef (id) to use in
    media_asset_id / image_asset_id / block asset_id. Optional rasterize=true → PNG (needs
    cairosvg; clear rasterize_unavailable error otherwise). Fixes the "inline <svg> in body_html
    gets sanitized away" pitfall — use the asset pipeline (rendered as <img src=…svg>).
  • content_slide blocks[] per-block width (e.g. "60%") — image blocks can be sized + centered
    (margin-inline:auto); omitted → full width.
  • build_from_spec auto_tts (opt-in, default false) + tts_voice — auto-generates Piper
    narration for screens that have narration_text and no narration_asset_id, setting
    narration_asset_id. Silently skipped when Piper is unavailable (build never breaks).

Changed

  • render_motion_video: when the render subprocess fails because Chromium is missing, return a clear
    render_unavailable error with workarounds (PNG+TTS video, static SVG/PNG asset, or local render)
    instead of a raw HyperFrames stderr dump.

Full changelog: https://github.com/kemalyy/edumints-scorm-mcp/blob/main/CHANGELOG.md#130--2026-06-26

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