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animation-systems

100 / 100 · Low risk

Fine to try.

By rondorkerin/gamestack (GitHub) · media · 34 stars · scanned at commit 0419358

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 blend spaces (1D/2D), animation state machines, additive layers and upper/lower-body splits, ragdoll and active ragdoll, procedural IK foot placement on uneven terrain, secondary motion (spring bones, cloth, hair), motion…

Works with any agent that supports SKILL.md skills.

What this skill can do

We found nothing in the files we read that matches our rules. That does not prove the skill is safe: see the limits of static scanning.

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'animation-systems' ] || [ -L ~/.agents/skills/'animation-systems' ]; then echo 'A skill folder named animation-systems already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/rondorkerin/gamestack' "$d" && git -C "$d" checkout --quiet '0419358df31455e63820bdd89f3c5b446665f604' -- 'plugins/gamestack/skills/animation-systems' && mkdir -p ~/.agents/skills && cp -R "$d"/'plugins/gamestack/skills/animation-systems' ~/.agents/skills/'animation-systems' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'animation-systems' ~/.claude/skills/'animation-systems' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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