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favicon

Generate favicons from a source image

58

Quality

68%

Does it follow best practices?

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Adds up to 20 points to the overall score

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SecuritybySnyk

Passed

No findings from the security scan

Fix and improve this skill with Tessl

tessl review fix ./plugins/AI-Agents-Safe-Coding-Skills/skills/favicon/SKILL.md

The canonical home for this skill is favicon 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.

The skill body is highly actionable, with concrete copy-paste commands and a clearly sequenced workflow that includes input validation and error handling. It is well structured, though slightly long with some inline per-framework detail that could be externalized and no explicit output-verification checkpoint.

Suggestions

Add a final verification checkpoint in Step 8 confirming generated files exist with expected sizes before reporting success, since this is a batch/overwriting operation.

Consider moving the per-framework HTML/metadata snippets (Rails, Next.js) into a reference file to keep SKILL.md a leaner overview.

Trim narrative reminders like "Report the detected project type and the static assets directory that will be used." to tighten token efficiency.

DimensionReasoningScore

Conciseness

The body is mostly efficient command tables and copy-paste snippets with only minor prose that could be trimmed (e.g. "Report the detected project type..." narration), fitting the efficient-with-minor-over-explanation anchor.

4 / 5

Actionability

Provides fully executable, copy-paste-ready ImageMagick commands, exact manifest JSON, and per-framework HTML/TypeScript snippets covering the common cases (Rails, Next.js, static HTML), matching the fully-executable anchor.

5 / 5

Workflow Clarity

A clear 8-step sequence with explicit validation checkpoints (ImageMagick install check, source existence/format check with stop, error-handling section, ask-when-in-doubt), with only a minor gap in post-generation output verification.

4 / 5

Progressive Disclosure

Well-organized into labeled sections with no nested references and no need for external files; at ~220 lines it is not the under-50 simple-skill exception, and the inline framework-specific HTML/manifest material could arguably be split, fitting the good-structure-with-minor-gaps anchor.

4 / 5

Total

17

/

20

Passed

Description

53%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 concise and names a concrete, well-scoped task, but it omits any "Use when..." trigger guidance and lacks synonyms beyond "favicons", leaving the what/when pairing incomplete.

Suggestions

Add an explicit trigger clause, e.g. "Use when the user asks to create or generate favicons, app icons, or a site.webmanifest from a source image."

Include natural synonyms and extensions users say, such as "icons", "apple-touch-icon", "app icon", and ".ico" to improve trigger coverage.

Optionally hint at the broader outcome (updating HTML link tags / manifest) so the "what" is more comprehensive.

DimensionReasoningScore

Specificity

Names the domain (favicons) and one concrete action with its input ("Generate favicons from a source image"), matching the 1-2 concrete actions anchor; it is more specific than the generic score-2 example but not comprehensive.

3 / 5

Completeness

Has a clear "what" (generate favicons from a source image) but no "Use when..." clause or explicit trigger guidance, which caps completeness at 3 per the judging guidelines.

3 / 5

Trigger Term Quality

Includes the natural keyword "favicons" that users would say, but misses common synonyms and extensions (icons, app icon, apple-touch-icon, .ico), matching the some-relevant-keywords anchor.

3 / 5

Distinctiveness Conflict Risk

Favicon generation is a clear, narrow niche with minimal conflict risk, but the absence of explicit trigger phrases keeps it just below the distinct-triggers score-5 anchor.

4 / 5

Total

13

/

20

Passed

Validation

87%

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

Validation14 / 16 Passed

Validation for skill structure

CriteriaDescriptionResult

allowed_tools_field

'allowed-tools' contains unusual tool name(s)

Warning

frontmatter_unknown_keys

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

Warning

Total

14

/

16

Passed

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

Table of Contents

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