A2A Protocol needs to support subscriptions

[subscriptionmanager26-png]

So I have been building an app that let's agents discover and talk to each other. One of the use cases is as follows

• Agent 1 asks Agent 2 for regular updates on a task ( Let's say stock price at every 5 minutes interval )

Now this case is not natively supported by the A2A protocol and workarounds break more things.
The workaround I do is that I have configured Agent 2 such that it will keep this task in working state and emit updates for it. Agent 1 will treat working tasks as subscriptions ( or tasks worthy of tracking separately ).

Issues with this approach

• Working doesn't necessarily mean subscriptions and hence tasks that shouldn't be tracked under subscriptions are also being tracked impacting the user experience
• Since the workaround is a standard way others might decide a different approach to handle subscriptions and it would break UI

Proposed Solution

• Provide an additional state called subscribed. This will allow cleanly tracking of tasks

What's the community view on this ?