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skill-creator

Create or update AgentSkills. Use when designing, structuring, or packaging skills with scripts, references, and assets.

48

Quality

51%

Does it follow best practices?

Impact

No eval scenarios have been run

SecuritybySnyk

Passed

No known issues

Optimize this skill with Tessl

npx tessl skill review --optimize ./nanobot/skills/skill-creator/SKILL.md
SKILL.md
Quality
Evals
Security

Quality

Content

35%

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

This skill suffers primarily from excessive verbosity—it explains many concepts Claude already understands (what PDFs are, what progressive disclosure means, what scripts/references/assets are) and includes lengthy examples that illustrate the same point repeatedly. The actionable parts (init_skill.py, package_skill.py commands, directory structure) are solid but buried in explanatory prose. The skill would benefit significantly from moving detailed guidance into reference files and keeping SKILL.md focused on the essential workflow and commands.

Suggestions

Cut the 'About Skills' and 'What Skills Provide' sections entirely—Claude already knows what skills are. Start directly with the creation process or core principles.

Move the 'Progressive Disclosure Design Principle' patterns, 'Bundled Resources' detailed explanations, and 'Core Principles' into a references/ file, keeping only a brief summary and link in SKILL.md.

Add a concrete validation checkpoint between Step 4 (Edit) and Step 5 (Package)—e.g., a checklist of what to verify before packaging (frontmatter completeness, resource references accuracy, line count under 500).

Replace the abstract planning guidance in Steps 1-2 with a concrete example showing input (user request) → output (planned skill structure) to make the planning phase more actionable.

DimensionReasoningScore

Conciseness

The skill is extremely verbose at ~400+ lines, extensively explaining concepts Claude already knows (what skills are, what scripts/references/assets are, progressive disclosure as a concept). Sections like 'What Skills Provide' and 'About Skills' are unnecessary preamble. Much of the content reads like a tutorial for humans rather than lean instructions for an AI agent.

1 / 3

Actionability

The skill provides concrete commands for init_skill.py and package_skill.py with executable examples, and gives specific directory structures. However, much of the guidance is abstract (e.g., 'analyze each example,' 'consider what procedural knowledge would help') and the SKILL.md writing section lacks concrete before/after examples of good vs bad skill content.

2 / 3

Workflow Clarity

The 6-step creation process is clearly sequenced and each step has a defined purpose. However, validation is only mentioned as part of the packaging script (Step 5) with no explicit checkpoints between steps 3-4. There's no feedback loop for testing the skill content itself before packaging, and the iteration step (Step 6) is vague about what to validate.

2 / 3

Progressive Disclosure

The skill references two external files (references/workflows.md and references/output-patterns.md) with clear signals for when to consult them. However, the SKILL.md itself is monolithic with enormous amounts of inline content that could be split into reference files (e.g., the entire 'Core Principles' section, the 'Progressive Disclosure Design Principle' section with its patterns, and the detailed bundled resources documentation).

2 / 3

Total

7

/

12

Passed

Description

67%

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 reasonably well-structured with a clear 'Use when' clause and identifies the domain adequately. However, it lacks concrete specific actions (e.g., generating frontmatter, writing skill markdown) and could benefit from more natural trigger terms that users would actually type. The distinctiveness is moderate—'AgentSkills' helps but the surrounding language is generic enough to risk overlap.

Suggestions

Add more concrete actions like 'write YAML frontmatter', 'generate skill markdown files', 'create activation scripts' to improve specificity.

Include natural trigger term variations such as 'SKILL.md', 'skill file', 'skill template', 'new skill', 'skill definition' to improve keyword coverage.

DimensionReasoningScore

Specificity

Names the domain ('AgentSkills') and some actions ('create or update', 'designing, structuring, packaging'), but the actions are somewhat generic and don't list concrete specific operations like 'write YAML frontmatter', 'generate script files', or 'validate skill format'.

2 / 3

Completeness

Clearly answers both 'what' (create or update AgentSkills with scripts, references, and assets) and 'when' (Use when designing, structuring, or packaging skills). The 'Use when...' clause is explicit with trigger guidance.

3 / 3

Trigger Term Quality

Includes some relevant terms like 'skills', 'scripts', 'references', 'assets', 'packaging', but misses natural variations users might say such as 'skill file', 'SKILL.md', 'skill template', 'new skill', or 'skill definition'. 'AgentSkills' is a specific term but may not be what users naturally type.

2 / 3

Distinctiveness Conflict Risk

The term 'AgentSkills' provides some distinctiveness, but 'designing, structuring, or packaging' could overlap with general project scaffolding or template-creation skills. The mention of 'scripts, references, and assets' is somewhat generic and could conflict with other asset-management or project-setup skills.

2 / 3

Total

9

/

12

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.

Validation11 / 11 Passed

Validation for skill structure

No warnings or errors.

Repository
HKUDS/nanobot
Reviewed

Table of Contents

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