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a2a-assets

Use Assets from other apps or MCP hosts to generate, refine, export, and insert brand images or videos.

templates/assets/.agents/skills/a2a-assets/SKILL.md

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# Assets MCP Tool

Use the Assets MCP tool surface when another app or external host needs brand
imagery, video, or reusable source media and Assets owns the library. Prefer the
pure MCP `generate-asset` flow for human-in-the-loop generation because it can
return the inline picker. A2A remains useful for unattended cross-app
delegation, but A2A replies cannot render MCP App pickers.

## Caller Flow

1. For human selection, call `generate-asset` with the brief, `callerAppId`, and
   `libraryId` when known. It will match the library, generate candidates, and
   return the Assets picker filtered to the new run IDs.
2. For unattended A2A-style work, call `match-library` or `list-libraries` when