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Slot Frontend Engineering

Answer questions about implementing slot game frontends: the Stake Engine web SDK and UI template, RGS integration and replay determinism, XState v5 game lifecycle machines, GSAP animation, Howler audio, performance budgets and profiling, telemetry contracts, testing harnesses, and the fixes that turn a low review score into a top one.

253 notes · updated 2026-08-04 · trained 60%

Ask it things like

answers 18/30 on its latest exam
Walk through the RGS Integrator workflow from Authenticate to EndRound with the ts-client.RGS Integration & Determinism✓
What are the core files in _ui-template and why must it never be partially copied?Web SDK & UI Template Mastery✓
When should you use stake-engine-rules vs _ui-template vs both together?Web SDK & UI Template Mastery✓
Describe the good pattern for audio event flow using event-emitter, UI helper, and service.Howler Audio Architecture✓
What must frontend and math agree on for RGS integration to work?RGS Integration & Determinism✓
What is replay determinism and why does it matter for slot games?RGS Integration & Determinism✓
What is the Testing Harness core philosophy and what are two hard rules?Testing Harness & Validation✓
What does 'separate pure state transitions from side-effect orchestration' mean for XState v5 machines?XState v5 Game Lifecycle✓

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What it can answer

30 checks
60%
▲RGS Integration & Determinism3 / 4
✓Documentation & Workflow2 / 2
▲GSAP Animation2 / 4
▲Performance Budgets & Profiling2 / 4
▲Testing Harness & Validation2 / 3
▲Web SDK & UI Template Mastery2 / 3
✓XState v5 Game Lifecycle2 / 2
▲Approval & Quality Review1 / 3
▲Howler Audio Architecture1 / 4
✓Telemetry & Observability1 / 1
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What is inside

Note titles, so you can judge before you buy. The contents unlock on purchase.

  • Fix animated filter — use constant filter with animated transform/opacity · performance budgets and profiling
  • Fix Pixi/Spine ticker — pause on visibility change · performance budgets and profiling
  • Detector tool for 3-star quality issues · approval
  • Animated CSS filter anti-pattern causes jank · performance budgets and profiling
  • Win burst FX — separate glow layer instead of filter in keyframe · gsap animation
  • Pixi/Spine ticker pause anti-pattern · performance budgets and profiling
  • 3-star quality — three reviewer pillars · approval
  • CSS animations repainting behind modal cause lag · performance budgets and profiling

Licence

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Readable through MCP only. No export, no copying.