Resolve A2A and MCP bindings by name#1004
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radugheo
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Jul 22, 2026
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- Resolve Unified Runtime MCP and A2A tools by display name.
- Pass legacy slugs only as compatibility fallback hints.
- Update MCP and A2A tool coverage.
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Pull request overview
This PR updates the MCP and A2A tool resolution flow to use name-based lookups in the UiPath SDK (with legacy slugs passed as compatibility hints), and adjusts test coverage to match the new binding behavior.
Changes:
- Switch MCP server resolution from
retrieve_async(slug=...)toretrieve_by_name_async(name=..., legacy_slug=...). - Switch Remote A2A agent resolution from
retrieve_async(slug=...)toretrieve_by_name_async(name=..., legacy_slug=...)and update the A2aClient interface accordingly. - Update MCP/A2A tests to mock and assert the new name-based SDK calls.
Reviewed changes
Copilot reviewed 5 out of 5 changed files in this pull request and generated 1 comment.
Show a summary per file
| File | Description |
|---|---|
| tests/agent/tools/test_mcp/test_mcp_tool.py | Updates MCP tool invocation test mocks to use retrieve_by_name_async. |
| tests/agent/tools/test_mcp/test_mcp_client.py | Updates MCP client tests to mock/assert retrieve_by_name_async arguments (name + legacy_slug + folder_path). |
| tests/agent/tools/test_a2a_tool.py | Updates A2A tests for the new client fields and retrieve_by_name_async call shape. |
| src/uipath_langchain/agent/tools/mcp/mcp_client.py | Changes MCP server URL resolution to use name-based retrieval with legacy slug fallback. |
| src/uipath_langchain/agent/tools/a2a/a2a_tool.py | Changes A2A agent URL resolution to use name-based retrieval with legacy slug fallback; updates client construction accordingly. |
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| a2a_client = A2aClient(agent_card, resource.slug) | ||
| a2a_client = A2aClient(agent_card, resource.name, resource.slug) |
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| "uipath>=2.13.7, <2.14.0", | ||
| "uipath-core>=0.5.29, <0.6.0", | ||
| "uipath-platform>=0.2.12, <0.3.0", | ||
| "uipath-platform==0.2.14.dev1018287328", |
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Restore a production uipath-platform constraint before merging. This published dependency pins a TestPyPI development build; normal pip consumers resolve from PyPI and do not read [tool.uv.sources], so uipath-langchain==0.14.16 cannot install when this build is unavailable on PyPI.
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