Agent-OS v2 Claude Code sub-agents default to Opus, driving excessive credit usage

[yluom]

Summary
Claude Code sub-agents in Agent-OS are defaulting to Opus, causing unexpectedly high token costs.

Impact
Significant, unplanned spend; difficult cost control.

Expected
Clear note in v2 docs about the default model and cost implications.
Ability to select the model (e.g., Sonnet vs Opus) at project setup or via config.

Proposed Fix
Update v2 docs (default + trade-offs).
Add install/config option for the default model.
Consider a cheaper default; make Opus opt-in.

Priority
High (direct financial impact).

[CasJam]

Fixed in today's update. Now all agents either specify sonnet or inherit, which inherits the model that your Claude Code is currently set to. #191