| name | studio-core-blocks |
| description | Ships the universal Studio blocks shared across every archetype — transitions, SFX, music presets, CTAs, anchor packs, and sketch scenes — under blocks/, discovered by the catalog loader alongside archetype-owned blocks. |
studio-core-blocks
The home for archetype-agnostic blocks. Anything that isn't specific to one archetype's narrative shape lives here.
What it ships
Under blocks/:
| Dir | Kind | Blocks |
|---|
transition/ | transition (5) | cut, fade, smash-cut, J-cut, L-cut |
sfx/ | sfx (3) | icon-pop, data-reveal, outro-resolve |
music/ | music_preset (2) | upbeat-tech, calm-narrative |
cta/ | cta (3) | link, subscribe, talk-to-us |
anchor/ | anchor_pack (3) | brand-pack, host-pack, location-pack |
sketch/ | sketch (3) | flowchart, timeline, wireframe |
That's 19 of the 36 library blocks. The remaining 17 are owned by archetype skills (hooks + narration in archetype-explainer, beats in archetype-product).
Templates
- All non-sketch core blocks ship
index.html (HyperFrames entry; G-39) with a data-duration scene and {{param}} placeholders.
- Sketch blocks ship a minimal valid
.excalidraw scene (a few rectangles + text). Because BlockSchema.default_renderer is hyperframes | remotion | auto only, sketch blocks use default_renderer: 'auto' + metadata.renderer_hint: 'excalidraw'.
Discovery
The MCP catalog loader walks skills/*/blocks/**/block.json, so these blocks appear in block.list regardless of which archetypes are installed. Uninstalling an archetype never removes core blocks.
Block placement map (whole library)
studio-core-blocks/blocks/ → transitions, sfx, music, cta, anchor, sketch (19)archetype-explainer/blocks/ → hooks (5) + narration patterns (4) (9)archetype-product/blocks/ → beats (8)
Total = 36.
