[power-automate][Bug] edit_flow/update_flow cannot save an unmanaged-solution flow with connection references (runtime definition not transformed to design-time)

[edbellman]

Plugin: power-automate v2.0.0 (marketplace commit eec8ece)

Summary

get_flow returns a flow's runtime-bound definition, but edit_flow / update_flow send that form verbatim to the Dataverse solution save endpoint, which requires the design-time form. For any unmanaged-solution flow whose connector actions use connection references, a save is impossible without manually rewriting every OpenApiConnection action's host.

Repro

1. get_flow on an unmanaged-solution flow with OpenApiConnection actions (connection references with source: "Invoker" + connectionReferenceLogicalName).
2. edit_flow to add a single action (e.g. a Respond to a PowerApp or flow), then apply.

Actual — two sequential 400s

1. WorkflowRunActionInputsInvalidProperty — the inputs of action … should not have the property authentication. (This one is documented in references/error-troubleshooting.md: "remove it — PA auto-injects on save.")
2. After stripping authentication from every action: WorkflowRunActionInputsMissingProperty — the inputs of action … is not valid. Property host.connectionReferenceName is missing. This is not documented.

Root cause

The runtime host returned by get_flow looks like:

{ "apiId": "/providers/Microsoft.PowerApps/apis/shared_sql", "connectionName": "shared_sql", "operationId": "ExecuteProcedure_V2" }

plus an injected authentication block. The solution save path instead wants the design-time form:

{ "apiId": "…", "operationId": "…", "connectionReferenceName": "<logical name>" }

with no authentication. Neither edit_flow nor update_flow performs this transform (strip authentication; map connectionName → the matching connectionReferences[].connectionReferenceLogicalName). references/definition-reference.md documents only the non-solution host.connectionName shape.

Expected

edit_flow / update_flow transform the runtime definition to design-time on save for solution flows (the maker portal does this natively) — or, at minimum, the docs describe the required manual transform.

Impact

Structural edits to unmanaged-solution flows with connection references are impossible via the MCP tools; the only workaround is the maker portal. (Managed-solution flows are already guarded behind forceManaged; this is the unmanaged-solution case the code comments state is supported.)

Environment

• power-automate plugin v2.0.0
• MCP tools: get_flow, then edit_flow (also applies to update_flow)
• Flow: unmanaged solution ("Active"), PowerAppV2 trigger, OpenApiConnection actions (SQL / Office 365 / SharePoint), connection references with source: "Invoker"

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Disclaimer: I investigated and drafted this issue with Claude Code (Anthropic) — it read the plugin source and docs and reproduced the failure against a live flow. I've reviewed and verified the report before filing.

[radioblazer]

Fixed in v3.0.1 — resolved in PR #393, merged 2026-08-12.

Please update to v3.0.1 and let us know if you're still seeing this.