Default Minimal System Prompt

User suggests evolving AgentsRoom's agent roles system to align with industry trends favoring on-demand skills loading over fixed personas. Currently, the "Minimal system prompt" mode—which runs agents with only project rules and no fixed role or large tool guide—is off by default, per-agent only, and not highlighted during setup, causing most users to miss it. The default includes a role persona and a large tool guide in every agent's system prompt, which differs from CLI behavior.

The user requests the following improvements:

1. Make "Minimal system prompt" the default or at least a global setting, and introduce it during onboarding.
2. Treat roles as optional labels/colors, with expertise coming from attached skills.
3. Deliver the AgentsRoom tool guide as a skill that loads only when tools are used, not in every prompt.
4. Allow saved agents and templates to carry skill and account defaults for reuse.
5. Encourage team patterns based on effective workflows (implement then review, or parallel work on separate parts).

This would better align AgentsRoom with emerging standards like Anthropic's Agent Skills and improve user experience by reducing prompt bloat and clarifying agent behavior.