Content
75%Weight 40%Scale 1-5Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
A strong, self-contained skill document: everything is concrete and MiMo-specific, with a clear workflow, executable conversion commands, fallback chains, and a verification checklist. The gaps are minor — some duplicated statements, placeholder shell arithmetic, and no executable way to confirm the generated spritesheet's actual dimensions against the manifest.
Suggestions
Add an executable command to inspect the generated spritesheet's actual pixel dimensions (e.g. `sips -g pixelWidth -g pixelHeight spritesheet.webp` or `identify spritesheet.webp`) in Step 3, plus a recovery step for when the dimensions don't match the manifest (adjust manifest values or regenerate).
Replace the placeholder shell arithmetic (`WIDTH=$((frameWidth * columns))`) with an executable example using literal values consistent with the manifest example (e.g. `WIDTH=$((240 * 8))`), so the rasterize command is copy-paste ready.
Deduplicate the repeated content: state the idle-animation requirement and the delivery/refresh instructions once each instead of in both the schema/layout sections and the Constraints/Step 4 sections.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The body is almost entirely system-specific information Claude cannot know (manifest schema, spritesheet layout rules, MiMo Desktop constraints) with no basic-concept explanations, but contains minor duplicates: the idle requirement is stated twice ("The `idle` animation is **required**" and "The `idle` animation MUST exist") and the delivery path is explained in both the Output Structure section and Step 4. These are trim candidates rather than padding, so it sits above anchor 3 but short of the every-token-earns-its-place level 5. | 4 / 5 |
Actionability | Mostly executable guidance: complete copy-paste manifest JSON, concrete commands (`cwebp -lossless -q 100`, `sips -s format webp`, `rsvg-convert`, `brew install webp`), and an explicit no-silent-rename rule. Minor gaps keep it below anchor 5: the dimension calculation `WIDTH=$((frameWidth * columns))` uses undefined placeholder variables (not executable as written) and the SVG fallback says to "generate pixel-art frames directly as SVG" without showing how. | 4 / 5 |
Workflow Clarity | A clear four-step sequence (understand character → generate spritesheet → write manifest → deliver) with an explicit Step 3 verification checklist ("frameWidth × columns = spritesheet total width") and error-recovery fallback chains ("If `cwebp` is not available, check for `sips`... If neither tool is available, instruct the user to install one"). It falls short of anchor 5 because there is no validate→fix→retry loop if the dimension check fails, and no command given to inspect the generated image's actual dimensions to run the checklist. | 4 / 5 |
Progressive Disclosure | No bundle files exist; the single SKILL.md is well-organized into clearly headed sections (Output Structure, Manifest Schema, Spritesheet Layout, Workflow, Constraints) with nothing buried or nested. At ~155 lines it exceeds the under-50-line simple-skill exception, and the manifest field tables are borderline content that could live in a reference file, which fits anchor 4's 'minor organization gaps' better than anchor 5. | 4 / 5 |
Total | 16 / 20 Passed |