Instantly seed the brain with pre-built stack conventions so your AI team starts informed from session one. Run `/brain-seed` to list available profiles, or `/brain-seed <profile>` to seed immediately (e.g., `/brain-seed nextjs-prisma`, `/brain-seed fastapi`, `/brain-seed go-microservices`, `/brain-seed react-native`, `/brain-seed python-general`). Seeded conventions are injected into all future teammates exactly like `/brain-remember` entries. You can also pass a path to a custom JSON profile file.