Use in-workflow MCP server via in-memory transport #7
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dandavison
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Use released sdk-python
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dandavison
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Aug 22, 2025
| from temporalio.worker import Worker | ||
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| from nexusmcp import WorkflowTransport | ||
| import nexusmcp.workflow |
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This would go into the Temporal SDK eventually.
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Replace
WorkflowTransportwith in-workflowmcp.server.lowlevel.Server.EDIT: Instead of this PR, I'm going to investigate removing the forward proxy MCP server from the NonWFCaller inbound gateway, and just using
ClientSessionthere.Advantages
Before this PR, workflow caller and non-workflow caller pathways were different:
The workflow caller did not have any
mcp.server.lowlevel.Serverhandling MCP details; this would inevitably have resulted in bugs and inconsistencies.Now they are the same:
It is also a substantial code simplification.
Disadvantages