Power Automate Flows Created Outside Copilot Studio Not Appearing in Tools

 Update: I found the root cause.

After quite a bit of troubleshooting, the issue turned out to be related to the workflow's Plan, not the trigger, response action, environment, solution membership, or asynchronous response settings.

Here's what I found:

• Workflows created directly in Power Automate are assigned the plan:  The user running the flow
• Workflows created from Copilot Studio are assigned the plan:  Copilot Studio

In my case, the flow created in Power Automate worked correctly and could be added to the agent, but it did not appear in the Global Tools directory in Copilot Studio. The flows created from within Copilot Studio did appear.

Once I changed the workflow's Plan to Copilot Studio, the flow immediately appeared in the Global Tools directory.

One important note: changing the Plan to Copilot Studio appears to be a one-way operation and cannot be reverted.  Maybe save the workflow before changing.  Hopefully this saves someone else a few moments of troubleshooting.

This of course raises more questions for me about Consumption/billing, Tool discovery by the orchestrator, Environment export behavior and Future agent capabilities.