Executing tool-calls via extensions (not from main chat session)

### Describe the feature or problem you'd like to solve

tool calls, like list_agents, agents status, read_agents, write_agents to be available to be executed directly within extensions, instead of waking the chat and then calling this tools.

### Proposed solution

tool calls, like list_agents, agents status, read_agents, write_agents to be available to be executed directly within extensions, instead of waking the chat and then calling this tools.

assumed example: instead of session.send(), a dedicated .send() method per background agent, and a method to list all agents available and their status, without disturbing any of the agents

### Example prompts or workflows

tool calls, like list_agents, agents status, read_agents, write_agents to be available to be executed directly within extensions, instead of waking the chat and then calling this tools.

### Additional context

_No response_