2d-games
Free2D game development principles. Sprites, tilemaps, physics, camera.
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Detect, load, and apply skills before ANY code-related response
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See how to installReview the instructions the agent will receive before you install.
Skills are codified best practices. USE them - never assume you know better.
Before ANY response involving code, architecture, or technical decisions:
skills/SKILL-INDEX.md for relevant skillsRead skills/{name}/SKILL.md)| Thought | Reality |
|---|---|
| "This is just a simple question" | Simple questions have best practices too |
| "I already know this" | Skills evolve. Read current version. |
| "Let me explore the code first" | Skills tell you HOW to explore |
| "This doesn't need a formal skill" | If a skill exists, use it |
| "The skill is overkill" | Discipline prevents mistakes |
| Stack Signal | Skills to Load |
|---|---|
react, .tsx | react-patterns, react-ui-patterns |
next, next.js | nextjs-best-practices, vercel-deployment |
python, .py | python-patterns |
prisma | prisma-expert, database-design |
tailwind | tailwind-patterns |
typescript | typescript-expert |
docker | docker-expert |
test, jest | testing-patterns, tdd-workflow |
After discovering skills:
## Active Skills
| Skill | Purpose | Last Used |
|-------|---------|-----------|
| react-patterns | Component patterns | 2026-01-30 |
| nextjs-best-practices | App Router, Server Components | 2026-01-30 |
| systematic-debugging | Root cause analysis | ALWAYS |
| Action | Tokens | Frequency |
|---|---|---|
| Read CONTEXT.md | ~200 | Every session |
| Load cached skills | ~1000-3000 | Every session |
| Grep SKILL-INDEX.md | ~500 | New project only |
| Full index scan | ~2000 | Rarely |
Scan once, cache forever, update incrementally. Never scan 249 skills when 8 will do.
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2D game development principles. Sprites, tilemaps, physics, camera.
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3D game development principles. Rendering, shaders, physics, cameras.
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Expert in building 3D experiences for the web - Three.js, React Three Fiber, Spline, WebGL, and interactive 3D scenes. Covers product configurators, 3D portfolios, immersive websites, and bringing depth to web experiences. Use when: 3D website, three.js, WebGL, react three fiber, 3D experience.
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Structured guide for setting up A/B tests with mandatory gates for hypothesis, metrics, and execution readiness.
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This skill should be used when the user asks to "attack Active Directory", "exploit AD", "Kerberoasting", "DCSync", "pass-the-hash", "BloodHound enumeration", "Golden Ticket", "Silver Ticket", "AS-REP roasting", "NTLM relay", or needs guidance on Windows domain penetration testing.
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Use when you need to address review or issue comments on an open GitHub Pull Request using the gh CLI.
The English summary is being prepared. Showing the original description.