CtrlK
BlogDocsLog inGet started
Tessl Logo

isometric-asset-sheets

Generate sprite sheet images for the isometric city game using the GenerateImage tool. Use when creating new game assets, sprite sheets, vehicle sprites, building sprites, or any visual assets for the isometric city builder. Ensures consistent format, sizing, and isometric projections.

75

Quality

93%

Does it follow best practices?

Run evals on this skill

Adds up to 20 points to the overall score

View guide

SecuritybySnyk

Passed

No findings from the security scan

SKILL.md
Quality
Evals
Security

Quality

Content

87%Weight 40%Scale 1-3

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

Highly actionable, lean content with copy-paste prompt templates and worked examples. The main gap is the absence of an explicit verification checkpoint after generation, leaving the workflow without a validation feedback loop.

Suggestions

Add a validation step to 'After Generation' — e.g., verify the output sheet has the 6x5 grid, the four compass isometric views (NW/NE/SE/SW), and a solid #FF0000 background before saving and integrating.

Reduce redundancy between 'Standard Format', the per-example prompts, and the 'Asset Constraints' table by stating shared constraints once and only varying per-asset exceptions in the examples.

Confirm the external reference path '../../../skills/adding-asset-sheets.md' resolves from the skill bundle, or move that integration guidance into a local reference file to keep navigation one level deep within the bundle.

DimensionReasoningScore

Conciseness

Lean and efficient — no explanations of concepts Claude already knows (isometric projection, sprite sheets); content is tables, a prompt template, and copy-paste example prompts. Minor repetition of constraints across sections is justified by self-contained example prompts, so it stays at 3 rather than dropping to 2.

3 / 3

Actionability

Provides a copy-paste-ready prompt template plus three fully worked example prompts (Airplanes, Ground Vehicles, Boats) with concrete row-by-row category assignments and explicit constraints — directly executable.

3 / 3

Workflow Clarity

The 'After Generation' section lists a clear 3-step sequence (save, integrate via guide, configure renderConfig.ts), but there is no explicit validation/verification checkpoint for the generated sheet (e.g., confirm 6x5 grid, correct NW/NE/SE/SW projections), which caps a batch-generation workflow at 2.

2 / 3

Progressive Disclosure

Well-organized into clear sections (Standard Format, Grid Layout, Prompt Template, Examples, Constraints, Common Issues) with the single external reference (adding-asset-sheets guide) clearly signaled and one level deep; no bundle files exist to split further.

3 / 3

Total

11

/

12

Passed

Description

100%Weight 40%Scale 1-3

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 description: third-person voice, concrete capabilities, explicit 'Use when' triggers covering natural user terms, and a clear niche that minimizes conflict risk. No improvements needed.

DimensionReasoningScore

Specificity

Lists multiple concrete actions — 'Generate sprite sheet images', 'Ensures consistent format, sizing, and isometric projections' — matching the anchor for listing several specific concrete actions.

3 / 3

Completeness

Explicitly answers both what ('Generate sprite sheet images... Ensures consistent format, sizing, and isometric projections') and when ('Use when creating new game assets, sprite sheets...'), with an explicit 'Use when' clause.

3 / 3

Trigger Term Quality

Natural terms a user would say are well covered: 'game assets, sprite sheets, vehicle sprites, building sprites, or any visual assets for the isometric city builder'.

3 / 3

Distinctiveness Conflict Risk

Narrow niche (isometric city game sprite sheets via the GenerateImage tool) with distinct triggers; unlikely to fire for unrelated skills.

3 / 3

Total

12

/

12

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.

Validation15 / 16 Passed

Validation for skill structure

CriteriaDescriptionResult

relative_links

Relative link issues: 1 suspicious

Warning

Total

15

/

16

Passed

Repository
amilich/isometric-city
Reviewed

Table of Contents

Is this your skill?

If you maintain this skill, you can claim it as your own. Once claimed, you can manage eval scenarios, bundle related skills, attach documentation or rules, and ensure cross-agent compatibility.