a2uicatalog/a2ui

Typed UI vocabulary for AI agents using the a2ui protocol — 474 atoms an agent composes into real rendered interfaces across web, Google Meet, Apps Script, Google Chat and MCP Apps. MCP server, no signup.

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PreToolUse

a2uicatalog/a2ui

Hook Claude Code

Runs before the agent uses a tool for Bash tool calls, executing ops.py. From a2uicatalog/a2ui.

4 2d ago A tokens not measured original MIT