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agentskills

Agent Skills Open Standard reference (agentskills.io). Use when creating portable skills for Claude Code, Cursor, Gemini CLI, OpenAI Codex, VS Code, Roo Code, and 20+ compatible agents. Covers frontmatter schema, naming rules, directory structure, progressive disclosure, validation, and authoring. Load before creating cross-agent skills.

65

Quality

80%

Does it follow best practices?

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SecuritybySnyk

Passed

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tessl review fix ./plugins/plugin-creator/skills/agentskills/SKILL.md
SKILL.md
Quality
Evals
Security

Quality

Content

72%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.

A well-structured reference skill with strong progressive disclosure and actionable validation commands. The main gap is the absence of an explicit, checkpoint-driven authoring workflow.

Suggestions

Add a numbered end-to-end authoring workflow (scaffold → write frontmatter → add body → run skilllint → fix → re-validate) with an explicit validation checkpoint and retry loop to raise workflow_clarity.

Trim the opening provenance sentence ("Originally developed by Anthropic, released as an open standard, and adopted by a growing number of agent products") since it does not aid execution.

Consolidate the duplicated best-practices reference (it appears in both 'Authoring Best Practices' and 'Detailed References') to tighten navigation.

DimensionReasoningScore

Conciseness

Mostly lean with dense tables, bullet rules, and code blocks that assume competence; a few explanatory sentences (e.g., the origin blurb) could be trimmed, keeping it just below a 5.

4 / 5

Actionability

Provides concrete executable commands (uvx skilllint, skills-ref validate/read-properties/to-prompt) and a runnable Python API snippet with minor gaps in fully copy-paste-ready coverage.

4 / 5

Workflow Clarity

As a reference skill it lacks a strongly sequenced multi-step workflow with explicit validation checkpoints; the write-then-skilllint-then-skills-ref sequence is only weakly structured as a feedback loop.

3 / 5

Progressive Disclosure

Clear overview body with well-signaled one-level-deep references (best-practices.md, specification.md, integration.md), all of which exist in the bundle, and content appropriately split for easy navigation.

5 / 5

Total

16

/

20

Passed

Description

87%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.

A strong description that clearly states both purpose and trigger conditions with concrete coverage areas and a distinct niche. Minor room to add more natural synonyms/file-extension triggers.

DimensionReasoningScore

Specificity

Lists several concrete coverage areas ("frontmatter schema, naming rules, directory structure, progressive disclosure, validation, and authoring") with minor gaps; not quite the exhaustive multi-action list of a 5.

4 / 5

Completeness

Explicitly answers both what ("Agent Skills Open Standard reference ... Covers ...") and when ("Use when creating portable skills ... Load before creating cross-agent skills") with concrete trigger phrases.

5 / 5

Trigger Term Quality

Includes natural triggers like "creating portable skills", "cross-agent skills", and named agent products (Claude Code, Cursor, Gemini CLI); a few common synonyms are missing, so not a 5.

4 / 5

Distinctiveness Conflict Risk

Clear niche (portable cross-agent open-standard skills) with distinct triggers and explicit differentiation from Claude Code-specific skills, minimizing conflict risk.

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

Warning

referenced_paths_exist

Referenced path issues: 8 missing

Warning

Total

14

/

16

Passed

Repository
Jamie-BitFlight/claude_skills
Reviewed

Table of Contents

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