/animation-systems
Use when designing, speccing, or reviewing a character/object motion system in ANY engine — the rig and skeleton, skinning (linear blend vs dual-quaternion, the candy-wrapper artifact), forward vs inverse kinematics, IK solvers (two-bone, FABRIK, CCD, look-at), blend trees and
$ npx -y skills add rondorkerin/gamestack --skill animation-systems --agent claude-codeHow it fires
How this skill gets triggered: by you, by Claude, or both.
- Fires itselfAuto-invocation. Claude auto-loads it when your prompt matches the work.
- You can call itInvoke it directly when you want it.
- Slash command
/animation-systems
Context preview
The summary Claude sees to decide when to auto-load this skill.
Use when designing, speccing, or reviewing a character/object motion system in ANY engine — the rig and skeleton, skinning (linear blend vs dual-quaternion, the candy-wrapper artifact), forward vs inverse kinematics, IK solvers (two-bone, FABRIK, CCD, look-at), blend trees and
An agentic framework for building games on any platform — for Claude. Like gstack is for software, but for games. Questions, feedback, or just want to follow along: Discord · @metatransformr on X
Repo: rondorkerin/gamestack
Other skills on gamestack.
- /3d-graphics-and-rendering
Use when designing, choosing, or reviewing the rendering layer of any real-time 3D (or 2D-with-lighting) game — the rasterization pipeline, PBR vs stylized/NPR materials, the forward/deferred/forward+ lighting architecture, global-illumination and shadow choices,
Open skill - /ai-authored-content-coherence
Use when keeping AI-authored or procedurally-generated content coherent at scale — single voice across a corpus, a machine-readable lore bible with a "never violate" list, generate-then-rationalize causation, recurring thematic domains so generated figures cohere into arcs, the
Open skill - /art-direction-and-readability
Use when making design-level (not asset-production) decisions about how a game looks and reads — readability vs. fidelity, silhouette design, value/contrast as eye-direction, reserved signal colors, visual-language consistency, and how an AI engine keeps a coherent house style
Open skill - /combat-design
Use when designing, tuning, or reviewing combat and game feel — juice/feedback budgets, hit-stop and impact, telegraphing and danger cues, enemy silhouettes and role-based rosters, multi-enemy readability, encounter pacing, and high-lethality (Souls-like)
Open skill - /difficulty-and-balancing
Use when designing, tuning, or reviewing the difficulty or balance of any game system — encounter tuning, cost curves, dominant-strategy audits, dynamic difficulty adjustment (DDA), difficulty settings, and accessibility assists. Also use to diagnose "this is too hard/too easy",
Open skill - /engine-router
The platform router for the gamestack framework. Use when a game's design is ready to implement, when the target engine is chosen or needs choosing, or when handing off a spec to engine code — "build this in Godot/Unity/Unreal/Three.js", "which engine", "now implement it", "wire
Open skill