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feat(a2ui): add A2UI agent-driven UI support + VeADK Web frontend#566
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Integrate Google A2UI (https://a2ui.org) so agents can reply with declarative UI instead of plain text: - veadk/a2ui: BaseA2UICatalog (enterprise extension point), get_basic_catalog, and build_a2ui_toolset wrapping the official a2ui-agent-sdk (optional dep). - Agent(enable_a2ui=True): non-breaking flag that appends SendA2uiToClientToolset. - veadk frontend: new CLI serving a React web UI + the ADK API server from one process; built UI ships in-package at veadk/webui so it works pip-installed. - Frontend (frontend/): streaming chat with thinking/tool blocks, A2UI surface renderer with an extensible per-component directory registry, session history, tracing waterfall, and gateway auth (querystring) forwarding. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
a2ui_catalog now accepts a path string: relative paths resolve against the agent's directory, absolute paths are used as-is. With no catalog given, a `catalog.json` beside the agent is auto-discovered (with an optional `a2ui_examples/` dir), falling back to the bundled basic catalog. Adds load_catalog() and caller_agent_dir(); BaseA2UICatalog.build() reuses load_catalog. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
warm-wm
approved these changes
Jun 1, 2026
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Integrate Google A2UI (https://a2ui.org) so agents can reply with declarative UI instead of plain text: