Write a deterministic OK file to out/ok.txt.
61
Quality
51%
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/evaluation/skill/skills/write-ok/SKILL.mdQuality
Discovery
17%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 extremely minimal and appears to describe an internal utility or test skill rather than a user-facing capability. It lacks trigger terms users would naturally say, provides no guidance on when to use it, and the purpose of writing an 'OK file' is unexplained. The description fails to help Claude understand when to select this skill from a pool of options.
Suggestions
Add a 'Use when...' clause explaining the trigger conditions (e.g., 'Use when verifying system health, confirming task completion, or when a success indicator file is needed')
Replace technical jargon with natural language explaining the purpose - what does 'deterministic OK file' mean and why would someone need it?
Include context about the use case - is this for testing, CI/CD pipelines, health checks, or something else?
| Dimension | Reasoning | Score |
|---|---|---|
Specificity | Names a specific action ('Write a deterministic OK file') and specifies the output location ('out/ok.txt'), but describes only a single narrow action rather than multiple concrete capabilities. | 2 / 3 |
Completeness | Describes what it does (writes a file) but provides no 'Use when...' clause or any guidance on when Claude should select this skill. The purpose and trigger conditions are entirely missing. | 1 / 3 |
Trigger Term Quality | Contains no natural keywords users would say. Terms like 'deterministic OK file' and 'out/ok.txt' are technical/internal jargon that users would never naturally request. | 1 / 3 |
Distinctiveness Conflict Risk | The specific file path 'out/ok.txt' provides some distinctiveness, but 'write a file' is generic enough to potentially conflict with other file-writing skills. The purpose is unclear. | 2 / 3 |
Total | 6 / 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, concise skill for a simple task. The main weakness is that the actual script content is not provided inline, requiring Claude to locate or create scripts/write_ok.sh rather than having executable code ready.
Suggestions
Include the actual script content inline or show what scripts/write_ok.sh should contain (e.g., `echo "OK" > out/ok.txt`)
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The content is extremely lean with no unnecessary explanation. Every line serves a purpose and assumes Claude's competence. | 3 / 3 |
Actionability | Provides a concrete command to run, but the actual script content is not shown. Claude would need to either find or create the script, reducing copy-paste readiness. | 2 / 3 |
Workflow Clarity | For this simple single-step task, the workflow is unambiguous: run one command, get one output file. No multi-step process requires validation checkpoints. | 3 / 3 |
Progressive Disclosure | For a skill under 50 lines with a single purpose, the organization is appropriate with clear sections for overview, command, and output. | 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.
8763418
Table of Contents
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