[Feature]: Always show each subagent's model in the Agents panel #6120

Before submitting

• I searched existing issues and did not find a duplicate.
• I am describing a concrete problem or use case, not just a vague idea.

Area

apps/desktop

Problem or use case

The Agents panel does not consistently show which model each subagent is using.

In the attached screenshot, the agent row shows the agent name, current activity, token usage, and elapsed time, but not the model

Proposed solution

Show the actual model used by each subagent directly in its row in the Agents panel.

For example:

GPT-5.6 Luna -max

Why this matters

Model visibility makes it easier to:

• Confirm that model overrides are working
• Understand differences in speed and output quality
• Debug unexpected subagent behavior
• Compare agents when several are running concurrently

Smallest useful scope

Add a model label to every subagent row, visible while the agent is running and after it completes

Alternatives considered

Currently, the user has to inspect logs, open the child session, or ask the parent agent which model was used. These options are slower, and consume extra tokens. Pain

Risks or tradeoffs

No response

Examples or references

Related model-accuracy reports:

• [Bug]: Sub agents always show Sonnet 5 for model even when explicitly set to other models #6017
• [Bug]: Agents panel mislabels model for depth-2 (nested) agent spawns — shows session default instead of actual serving model #6026

Contribution

• I would be open to helping implement this.