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codex-game-studios/skills/brainstorm/SKILL.md

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name, description
name description
brainstorm Use when you need the /brainstorm game-production workflow. Guided game concept ideation — from zero idea to a structured game concept document. Uses professional studio ideation techniques, player psychology frameworks, and structured creative exploration.

Brainstorm

Run the Codex Game Studios brainstorm workflow.

Before acting, read DETAILS.md for the full workflow. Apply project guidance from AGENTS.md and use ../../standards/ for path-specific standards.

Director gates use the bundled custom agents from ../../runtime/agents/. If the current project does not already have those agents installed in .codex/agents/, run $setup-runtime first.

Review mode controls review-gate intensity, not all custom-agent usage: full runs key director/lead gates, lean runs only PHASE-GATE checks such as /gate-check, and solo skips director review gates.

/brainstorm writes two brainstorm-stage artifacts: design/gdd/game-concept.md and design/gdd/game-pillars.md. In --review full mode, /brainstorm calls the creative-director custom agent during the CD-PILLARS gate and gives that subagent responsibility for creating or updating design/gdd/game-pillars.md. In lean or solo mode, the main brainstorm workflow writes the initial pillar document directly.