A Claude Code skill for creative project brainstorming via fan-out/fan-in multi-agent consensus. Dispatches 7 council members (Sonnet) in parallel, 7 devil's advocate challengers (Sonnet), then synthesizes (Opus) into a ranked report with a full spec for the winning approach.
- Takes a raw project idea (or improvement question)
- Generates 7 specialized council roles (3 fixed + 4 dynamic based on domain)
- Each council member proposes an approach from their angle
- 7 challengers stress-test each proposal
- Opus synthesizes, ranks approaches, picks a winner
- 3 focused agents (Product, Technical, Risk) flesh out the winning approach
- Final report with ranked approaches + full spec
/mastermind "I want to build a vocal training app"-- new idea/mastermind "How should I improve my SMAC skill?"-- improve existing/mastermind-- no argument, defaults to "What should I build next?" using Kontext goals
~350-500k tokens per run (17 Sonnet agents + Opus synthesis).
Reports saved to docs/mastermind-reports/YYYY-MM-DD-{slug}.md in the current project directory.