Passed 22 of 22 test cases with the skill, and 21 of 22 without it.
Without skill95%
With skill100%
Checks it passed that the model alone missed
Clones cached model instances before returning them from the asset manager
Calculates bounding box center and scale normalization factors for imported models
Imports GLTFLoader using the standard three/addons/loaders/GLTFLoader.js specifier path
1 fixed21 passed either way0 still failing0 broke
Pass-rate lift
+5 pp
Tokens
+169%
Agent turns
0%
Response time
-30%
Model gemini-3.6-flashMeasured 8/17/2026v122 of 22 cases passed with skill
Tokens, turns and time describe resource use, not a dollar price.
See it in action
A test case the skill fixed. Same model, same prompt, with and without the skill.
Prompt
I'm building a WebGL viewer and need a custom asset manager class in JavaScript to handle our Three.js resources. The class should cache loaded textures and GLTF models (cloning models when requested again), automatically center and normalize the scale of loaded meshes, and provide a fallback mechanism if a primary URL fails to load. Please write the complete class implementation.
What was checked, without and with the skill
Checked
Without skill
With skill
Imports GLTFLoader using the standard three/addons/loaders/GLTFLoader.js specifier path
Missed
Passed
Clones cached model instances before returning them from the asset manager
Missed
Passed
Calculates bounding box center and scale normalization factors for imported models
Missed
Passed
case-01 · gemini-3.6-flash · 8/17/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.
SKILL.md618 linessingle file
Three.js Loaders
Quick Start
import * as THREE from "three";
import { GLTFLoader } from "three/addons/loaders/GLTFLoader.js";
// Load GLTF model
const loader = new GLTFLoader();
loader.load("model.glb", (gltf) => {
scene.add(gltf.scene);
});
// Load texture
const textureLoader = new THREE.TextureLoader();
const texture = textureLoader.load("texture.jpg");