7-PART GOAL FRAMEWORK FOR AUTONOMOUS BUILD

PART 1: DESIRE & STAKES
Goal: Build a 3D planetary exploration game from a single prompt.
Why it matters: Test Fable 5 autonomy on complex creative output; reduce game dev cycle from weeks to hours.

PART 2: QUALITY BAR
Success criteria: Playable 3D scene, 3+ clickable planets, quiz interaction per planet, 60 FPS on target device.
Exclude: Voice acting, HD graphics, multiplayer

PART 3: TOOL INVENTORY
Available: Three.js (3D canvas), Fable 5 vision (generate 3D models + props), browser APIs (input, storage)
Constraints: Single HTML file (no build step); canvas size 1280x800

PART 4: MODEL FREEDOM
Directives: Fable writes Three.js code directly, imports generated models via CDN, manages physics-free orbit controls.
Fable authority: Shader optimization, particle effects, text overlay rendering
User authority: Planet quiz content, color scheme, camera angles

PART 5: VERIFICATION LOOP
Checkpoint 1: Canvas renders and no errors in console
Checkpoint 2: Click planet -> quiz appears + scores tracked
Checkpoint 3: Orbit controls responsive (mouse drag)

PART 6: DELIVERY
Output: Single .html file (copy-paste ready); no build required; Fable verifies each checkpoint before proceeding

PART 7: GOAL STATEMENT
"You are building a 3D learning game. Autonomously plan, build, and test all three components: canvas setup with camera, generated 3D planets with click handlers, and quiz/scoring UI. Stop after Checkpoint 3 passes."

RESULT: One complete game delivered in single Fable session, end-to-end