Problem (one or two sentences)

In complex Roo modes, we would like to delegate to sub modes with more focused prompt/definitions but we do not want these sub modes to be selectable in the drop down list as they are tactically defined.

Context (who is affected and when)

Ability to to build complex Roo modes that switch seamlessy to focused submodes during session execution. This will avoid to define master mode with lots of instruction trying to manage special cases confusing the model.

Desired behavior (conceptual, not technical)

Ability to define Roo mode with submodes.

Constraints / preferences (optional)

No response

Request checklist

• I've searched existing Issues and Discussions for duplicates
• This describes a specific problem with clear context and impact

Roo Code Task Links (optional)

No response

Acceptance criteria (optional)

No response

Proposed approach (optional)

Extend .roomodes syntax to accept a parent Roo mode name for a mode definition. Modes with a parent one won't be selectable in the mode drop down lost and will be callable only by the parent mode.

Trade-offs / risks (optional)

No response