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threejs-lighting

Three.js lighting - light types, shadows, environment lighting. Use when adding lights, configuring shadows, setting up IBL, or optimizing lighting performance.

68

Quality

83%

Does it follow best practices?

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SecuritybySnyk

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The canonical home for this skill is threejs-lighting in administrakt0r/AI-Agents-Safe-Coding-Skills

SKILL.md
Quality
Evals
Security

Quality

Content

82%Weight 40%Scale 1-5

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

A thorough, highly actionable reference with executable code throughout and clear sectioning. The main improvement opportunities are removing duplicated shadow-config/helper blocks and optionally splitting advanced topics into a reference file.

Suggestions

De-duplicate the shadow-camera configuration block (it appears in both "DirectionalLight Shadows" and "Optimizing Shadows") and the RectAreaLightHelper import (in both "RectAreaLight" and "Light Helpers").

Consider moving the advanced "Light Probes" section and the full performance-tuning reference into a separate references file to improve progressive disclosure.

Add a brief validation note (e.g. checking shadow.camera frustum coverage with a CameraHelper, or verifying renderer.shadowMap is enabled) to the shadow-setup workflow.

DimensionReasoningScore

Conciseness

Per-section prose is terse and assumes Three.js competence, but the shadow-camera config block and the RectAreaLightHelper import are duplicated across sections and could be trimmed.

4 / 5

Actionability

Fully executable, copy-paste-ready code for every light type, shadow setup, IBL, helpers, common lighting setups, animation, and performance tuning, covering the common cases comprehensively.

5 / 5

Workflow Clarity

The shadow setup gives a clear numbered three-step sequence (renderer, light, objects) and IBL has an ordered flow, but there are no explicit validation checkpoints; no destructive or batch operations are present to require them.

4 / 5

Progressive Disclosure

Well-organized into clear sections with Quick Start up front and no bundle files to reference; minor gap is that advanced inline content (e.g. Light Probes) could be split into a separate reference file.

4 / 5

Total

17

/

20

Passed

Description

83%Weight 40%Scale 1-5

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

A strong, concise description that clearly answers both what the skill does and when to use it, with concrete lighting-specific trigger phrases. Its only weakness is slightly generic action verbs and reliance on the jargon term "IBL".

DimensionReasoningScore

Specificity

Lists several specific actions ("adding lights, configuring shadows, setting up IBL, optimizing lighting performance") but the verbs are more generic than the anchor-5 example's concrete verbs, leaving minor coverage gaps.

4 / 5

Completeness

Explicitly states what ("Three.js lighting - light types, shadows, environment lighting") and an explicit "Use when..." trigger with concrete phrases, matching the anchor-5 pattern.

5 / 5

Trigger Term Quality

Good natural-term coverage ("lights", "shadows", "lighting performance"), but "IBL" is jargon and common synonyms like "shading" or "environment maps" are absent.

4 / 5

Distinctiveness Conflict Risk

A clear Three.js lighting niche with distinct triggers, but minor overlap risk with sibling skills like threejs-materials and threejs-textures noted in See Also.

4 / 5

Total

17

/

20

Passed

Validation

93%

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation — 15 / 16 Passed

Validation for skill structure

CriteriaDescriptionResult

frontmatter_unknown_keys

Unknown frontmatter key(s) found; consider removing or moving to metadata

Warning

Total

15

/

16

Passed

Repository
administrakt0r/AI-Agents-Safe-Coding-Skills
Reviewed

Table of Contents

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