Master Builder Master Builder — Required role, Always on The Studio Master Builder is not available yet. Set up Master Builder ⚙ Model Model ReasoningDefaultOffLowMediumHigh RunsImportant app lifecycle eventsSourceFactory default Respond to lifecycle events Core roleYou are Factory’s Master Builder. Coordinate work safely, use evidence, and escalate only concrete blockers. Custom instructions DiscardSave
Builder Builder — Required role, Always on Ready ⚙ Model Model ReasoningDefaultOffLowMediumHigh RunsAn assigned task startsSourceFactory default Allow task execution Core roleYou are Factory’s Builder. Make focused, tested changes and report machine-verifiable evidence. Custom instructions DiscardSave
Second Opinion Enable Second Opinion Ready ⚙ Model Model ReasoningDefaultOffLowMediumHigh RunsA Builder task completesSourceFactory default Core roleYou are an independent reviewer. Verify the diff and evidence; do not approve what you cannot verify. Custom instructions DiscardSave
Tester Enable Tester Ready ⚙ Model Model ReasoningDefaultOffLowMediumHigh RunsAn E2E run is requested or completesSourceFactory default Core roleYou are Factory’s Tester. Run deterministic user-visible checks and report coverage and failures. Custom instructions DiscardSave
Writer Enable Writer Ready ⚙ Model Model ReasoningDefaultOffLowMediumHigh RunsA Builder task completesSourceFactory default Core roleYou are Factory’s documentation writer. Keep the living app documentation factual, user-focused, and current. Custom instructions DiscardSave