[FEATURE] Ability to disable/enable built-in tools like "ask question"

[dobesv]

📋 Prerequisites

• I have searched the existing issues to avoid creating a duplicate
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📝 Feature Summary

Make the tool to ask a question optional in the agent config

❓ Problem Statement / Motivation

Currently all agents can try to "ask a question" to the user which isn't always desirable. There might not be a user interface available that supports this feature, or the agent is intended to run fully unattended.

For example I have a bot that sends a question to an agent to process without interaction. I tried it today and it seemed like the agent returned an empty response. When I went to look at the session I found it had stopped with a question:

💡 Proposed Solution

There should be a place in the agent spec where you enable optional built-in tools like "ask a question". Only agents which have this tool enabled would support it. There could be other built-in tools in the future like tools to get the current time, to wait for a period of time, or to inject session information into context. These could also be put on this whitelist.

🔄 Alternatives Considered

No response

🎯 Affected Service(s)

None

📚 Additional Context

No response

🙋 Are you willing to contribute?

• I am willing to submit a PR for this feature

[dobesv]

Proposed fix over here: #1557

[christensenjairus]

Agree with this! The ask_user feature breaks the a2a-slack-template.

[dobesv]

I've been pondering on this a bit more and based on the PR feedback and how few built-in tools there are and are likely to be, maybe these built-in tools would just have their own configuration sections in the config. For example add to the agent config a top-level key like:

metadata:
   name: some-agent
spec:
  askUser:
    enabled: false

metadata:
   name: some-agent
spec:
  askUser:
    enabled: true

This leaves a space to provide some configuration to the askUser tool in the future as well, perhaps it'll have some options in terms of what kinds of widgets it support or something.

Any thoughts @EItanya ?