[helenyang88]

Summary

• Add ComputerUseToolset / create_computer_use_toolset in veadk/tools/builtin_tools/computer_use.py, launching the independently distributed agentkit-cua-mcp server over stdio and exposing its desktop tools to ADK agents.
• Bind each agent invocation to a cloud desktop through ADK state, reject parallel calls, propagate cancellation, refresh the tool list after ensure_sandbox, and return screenshots as ADK image parts.
• Distribute the MCP server as a versioned public wheel (SHA256 pinned) started via uvx by default; CUA_MCP_WHEEL_URL or explicit connection_params can override it.
• Add veadk/tools/computer_use/ helpers used by the toolset.

Compatibility

• New public Python surface only (ComputerUseToolset, create_computer_use_toolset); no existing API, configuration, or generated project is changed.
• Tool discovery failures fail closed and always keep ensure_sandbox available.

Verification

• uv run --extra dev pytest -q tests/tools/cua_mcp -> 56 passed
• uv run --extra dev pre-commit run --files <changed files> -> passed (ruff check/format, secret scan)
• Branch is based on origin/main (38d3c6e)
• tests/tools/cua_mcp skips automatically when the optional agentkit-cua-mcp wheel is not installed

Risks

• Depends on the external agentkit-cua-mcp wheel at runtime; wheel URL changes require a ?revision= bump to avoid stale uv caches.