A tiny skill used by the skill isolation example.
20
0%
Does it follow best practices?
Impact
Pending
No eval scenarios have been run
Passed
No known issues
Optimize this skill with Tessl
npx tessl skill review --optimize ./examples/skillisolation/skills/demo-skill/SKILL.mdQuality
Discovery
0%Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.
This description is essentially a placeholder or meta-reference with no functional content. It fails on every dimension: it describes no concrete actions, includes no user-facing trigger terms, answers neither 'what' nor 'when', and provides no distinguishing characteristics that would help Claude select it appropriately.
Suggestions
Replace the meta-reference with a concrete description of what the skill actually does, listing specific actions (e.g., 'Performs X, generates Y, processes Z').
Add an explicit 'Use when...' clause with natural trigger terms that describe scenarios where this skill should be selected.
Include domain-specific keywords that users would naturally use when requesting this skill's functionality.
| Dimension | Reasoning | Score |
|---|---|---|
Specificity | The description contains no concrete actions whatsoever. 'A tiny skill used by the skill isolation example' is entirely abstract and says nothing about what the skill actually does. | 1 / 3 |
Completeness | Neither 'what does this do' nor 'when should Claude use it' is answered. The description only references its role as a test artifact, providing no functional information. | 1 / 3 |
Trigger Term Quality | There are no natural keywords a user would say. 'Skill isolation example' is internal/meta terminology, not something a user would naturally request. | 1 / 3 |
Distinctiveness Conflict Risk | The description is so vague that it provides no distinguishing characteristics. It could be confused with any other skill since it describes no specific domain or capability. | 1 / 3 |
Total | 4 / 12 Passed |
Implementation
0%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
This is a test fixture designed to detect skill state leaks across agents, not a functional skill. It contains zero actionable content, no code, no instructions, and no structure. It fails every dimension of the rubric as it was never intended to serve as a real skill.
Suggestions
If this is meant to be a real skill, add concrete instructions or code examples that teach Claude how to perform a specific task.
Add at least a heading and a clear, actionable directive so the content has minimal structure and purpose.
If this is purely a test fixture, consider excluding it from skill quality evaluations or marking it explicitly as non-functional.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The content contains no actionable information whatsoever—it's a test fixture, not a real skill. The tokens present serve no instructional purpose. | 1 / 3 |
Actionability | There are no concrete instructions, code, commands, or guidance of any kind. The content describes its own purpose as a test artifact rather than instructing Claude to do anything. | 1 / 3 |
Workflow Clarity | No workflow, steps, or process are described. There is nothing for Claude to follow or execute. | 1 / 3 |
Progressive Disclosure | No structure, no sections, no references, no organization. It is a single paragraph with no navigational aids or content hierarchy. | 1 / 3 |
Total | 4 / 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.
09cce3e
Table of Contents
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