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skill-authoring

Guidelines for writing Agent Skills that comply with the agentskills.io specification. WHEN: "create a skill", "new skill", "write a skill", "skill template", "skill structure", "review skill", "skill PR", "skill compliance", "SKILL.md format", "skill frontmatter", "skill best practices".

68

Quality

84%

Does it follow best practices?

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SecuritybySnyk

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SKILL.md
Quality
Evals
Security

Quality

Content

78%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 content is a well-organized, token-efficient guidance skill with concrete constraints, runnable validation commands, and a clean reference structure where every link resolves. The main gaps are minor redundancy between the Reference Loading and Validation sections and the absence of an explicit error-recovery loop in the validation workflow.

Suggestions

Tighten the Reference Loading and Validation sections so they only summarize and link rather than restating details already in their referenced files.

Add an explicit feedback loop to the validation workflow, e.g., 'If npm run references reports broken links, fix the path and re-run until clean'.

DimensionReasoningScore

Conciseness

The body is lean and bullet-driven with no padding or explanation of concepts Claude already knows, but the Reference Loading and Validation sections slightly restate what their referenced files cover, keeping it just below the fully efficient anchor.

4 / 5

Actionability

Provides concrete, executable guidance including exact constraints ('description: ≤60 words', 'name: 1-64 chars') and runnable commands ('npm run references', 'npm run tokens -- check'), with minor gaps typical of an instruction-only skill.

4 / 5

Workflow Clarity

The numbered integrity checklist (broken links, orphaned refs, tokens, duplicates, out-of-place guidance) and sequenced validation commands give a clear sequence with checkpoints, though no explicit error-recovery feedback loop is described.

4 / 5

Progressive Disclosure

SKILL.md is a clear overview with well-signaled, one-level-deep references linked to files rather than folders, and all referenced paths (guidelines/README.md, validation/README.md, token-budgets.md, CHECKLIST.md, REFERENCE-LOADING.md, guidelines/frontmatter.md) resolve to real files.

5 / 5

Total

17

/

20

Passed

Description

90%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 clearly communicates a distinct niche and pairs a concrete WHAT with an extensive, natural WHEN trigger list. Its only weakness is specificity: it states one composite action rather than enumerating the discrete authoring tasks it covers.

Suggestions

Expand the WHAT clause to name discrete concrete actions, e.g. 'Structure SKILL.md frontmatter, write descriptions, and organize references for Agent Skills that comply with the agentskills.io specification'.

DimensionReasoningScore

Specificity

Names the domain ('writing Agent Skills that comply with the agentskills.io specification') with essentially one concrete action rather than enumerating several specific authoring actions, matching the 'names domain and 1-2 concrete actions' anchor.

3 / 5

Completeness

Explicitly states WHAT ('Guidelines for writing Agent Skills that comply with the agentskills.io specification') and WHEN via a concrete WHEN: clause with multiple trigger phrases.

5 / 5

Trigger Term Quality

The WHEN list covers comprehensive natural terms and synonyms users would actually say, including 'create a skill', 'write a skill', 'skill PR', 'SKILL.md format', and 'skill best practices'.

5 / 5

Distinctiveness Conflict Risk

Targets a clear niche (Agent Skills compliance with the agentskills.io spec) with distinctive triggers like 'skill PR', 'skill compliance', and 'SKILL.md format', minimizing conflict with other skills.

5 / 5

Total

18

/

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

relative_links

Relative link issues: 3 missing, 5 deeper-than-1-level

Warning

referenced_paths_exist

Referenced path issues: 3 missing, 5 deeper-than-1-level

Warning

Total

14

/

16

Passed

Repository
microsoft/github-copilot-for-azure
Reviewed

Table of Contents

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