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mate

Create custom desktop pet (Mate) characters with spritesheet and manifest. Use when the user asks to 'create a pet', 'make a desktop companion', 'design a mate character', 'generate a spritesheet for my pet', or wants to customize their desktop buddy. Generates a WebP spritesheet + manifest.json that can be loaded by MiMo Desktop's Mate system.

74

Quality

91%

Does it follow best practices?

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SecuritybySnyk

Passed

No findings from the security scan

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.

The body is well-structured, concise, and actionable with executable commands, a precise schema, and explicit failure-handling guidance. Its main limitation is that the workflow's validation feedback loop, while present, is not framed as an explicit validate→fix→retry cycle.

Suggestions

Frame Step 3's manifest verification as an explicit validate→fix→retry loop (e.g., 'If checks fail, regenerate or adjust the spritesheet, then re-verify') to strengthen the feedback loop.

Provide a fully scripted one-liner for computing spritesheet HEIGHT (rows) so the rasterization fallback is copy-paste ready rather than relying on a comment hint.

Consider a tiny preflight validation command (e.g., checking the WebP RIFF header with `file spritesheet.webp`) to make the 'do not silently rename PNG' rule automatically enforced.

DimensionReasoningScore

Conciseness

Largely lean and assumes Claude's competence, with executable code and tables rather than padding; minor instances of over-explanation (e.g. '# Convert to lossless WebP preserving transparency') keep it just below a 5.

4 / 5

Actionability

Provides concrete, executable bash commands (cwebp, sips, rsvg-convert), a full manifest schema, and a clear spritesheet layout spec; minor gaps such as leaving 'rows = max animation row index + 1' as a comment hint rather than fully scripted keep it from a 5.

4 / 5

Workflow Clarity

A clear four-step sequence (Understand → Generate → Write Manifest → Deliver) with a verification checklist in Step 3 and explicit failure handling ('Do NOT silently rename... fail explicitly'); the destructive/batch guidance notes apply but the validation checkpoint is explicit, falling just short of the explicit validate→fix→retry loop of a 5.

4 / 5

Progressive Disclosure

For a sub-50-line single-purpose skill with no bundle files, the body is well-organized into clear sections (Output Structure, Manifest Schema, Spritesheet Layout, Workflow, Constraints), meeting the simple-skill exception for a top score.

5 / 5

Total

17

/

20

Passed

Description

100%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.

The description is excellent: it states concrete capabilities, provides an explicit 'Use when...' clause with multiple natural trigger phrases, and occupies a clearly distinct niche with minimal conflict risk. It is concise yet comprehensive.

DimensionReasoningScore

Specificity

Lists multiple concrete actions — 'Create custom desktop pet (Mate) characters with spritesheet and manifest', 'Generates a WebP spritesheet + manifest.json' — covering the full creation pipeline comprehensively.

5 / 5

Completeness

Clearly answers 'what' (create custom desktop pet characters with spritesheet + manifest) and 'when' (explicit 'Use when the user asks to...' clause with concrete trigger phrases), satisfying both requirements fully.

5 / 5

Trigger Term Quality

Includes many natural trigger phrases users would say ('create a pet', 'make a desktop companion', 'design a mate character', 'generate a spritesheet for my pet', 'customize their desktop buddy'), plus synonyms like 'desktop pet', 'desktop companion', 'desktop buddy'.

5 / 5

Distinctiveness Conflict Risk

Targets a very specific niche (MiMo Desktop's Mate desktop pet system with WebP spritesheet + manifest.json) with distinct triggers, so it is unlikely to fire for unrelated skills.

5 / 5

Total

20

/

20

Passed

Validation

100%

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

Validation16 / 16 Passed

Validation for skill structure

No warnings or errors.

Repository
XiaomiMiMo/MiMo-Code
Reviewed

Table of Contents

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