skill-creator
Guide for creating effective skills. This skill should be used when users want to create a new skill (or update an existing skill) that extends Claude's capabilities with specialized knowledge, workflows, or tool integrations.
Install with Tessl CLI
npx tessl i github:NeverSight/skills_feed --skill skill-creator81
Does it follow best practices?
If you maintain this skill, you can automatically optimize it using the tessl CLI to improve its score:
npx tessl skill review --optimize ./path/to/skillValidation for skill structure
Discovery
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 adequately explains its purpose and includes explicit trigger guidance, which is a strength. However, it lacks concrete specific actions that would help Claude understand exactly what this skill teaches, and the trigger terms could be more comprehensive to capture natural user language variations.
Suggestions
Add specific concrete actions like 'write YAML frontmatter', 'define description fields', 'structure skill content sections', or 'set up trigger conditions'
Expand trigger terms to include variations users might naturally say: 'write a skill', 'skill file', 'SKILL.md', 'teach Claude', 'new capability'
| Dimension | Reasoning | Score |
|---|---|---|
Specificity | Names the domain (creating skills) and mentions some actions ('create a new skill', 'update an existing skill'), but lacks concrete specific actions like 'write YAML frontmatter', 'define trigger conditions', or 'structure skill content'. | 2 / 3 |
Completeness | Clearly answers both what ('Guide for creating effective skills') and when ('when users want to create a new skill or update an existing skill'), with explicit trigger guidance using 'This skill should be used when...' clause. | 3 / 3 |
Trigger Term Quality | Includes relevant keywords like 'skill', 'create', 'update', but misses common variations users might say such as 'write a skill', 'new capability', 'skill file', 'SKILL.md', or 'extend Claude'. | 2 / 3 |
Distinctiveness Conflict Risk | Reasonably specific to skill creation, but 'extends Claude's capabilities with specialized knowledge, workflows, or tool integrations' is broad and could overlap with documentation or configuration skills. | 2 / 3 |
Total | 9 / 12 Passed |
Implementation
85%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
This is a well-structured, actionable skill with clear workflows and good progressive disclosure. Its main weakness is verbosity in the introductory sections - the 'About Skills' section and conceptual explanations could be significantly trimmed since Claude already understands these concepts. The core procedural content (Steps 1-6) is excellent and provides concrete, executable guidance.
Suggestions
Remove or drastically condense the 'About Skills' section - Claude doesn't need explanations of what skills are or what they provide; jump directly to 'Core Principles'
Trim the 'What Skills Provide' list and 'Official Anthropic Resources' section - these add ~200 tokens of context Claude likely doesn't need for skill creation
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The skill contains some unnecessary explanations (e.g., explaining what skills are, the 'About Skills' section with basic concepts). While it has good content, it could be tightened significantly - the 'What Skills Provide' list and extensive 'About Skills' section explain concepts Claude likely already understands. | 2 / 3 |
Actionability | Provides concrete, executable guidance throughout: specific script commands (init_skill.py, package_skill.py), clear directory structures, code examples, and step-by-step processes. The skill creation workflow is copy-paste ready with actual commands. | 3 / 3 |
Workflow Clarity | The 6-step skill creation process is clearly sequenced with explicit validation (Step 5 packaging validates automatically). Each step has clear entry/exit criteria, and the workflow includes feedback loops (Step 6: Iterate) for error recovery and improvement. | 3 / 3 |
Progressive Disclosure | Excellent structure with clear navigation to external references (references/workflows.md, references/output-patterns.md, Anthropic's GitHub). Content is well-organized with headers, and advanced topics appropriately link to separate files rather than being inline. | 3 / 3 |
Total | 11 / 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.
Validation — 11 / 11 Passed
Validation for skill structure
No warnings or errors.
- Reviewed
Table of Contents
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