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.

1.31x

Quality

76%

Does it follow best practices?

Impact

96%

1.31x

Average score across 3 eval scenarios

Securityby

Passed

No known issues

Optimize this skill with Tessl

npx tessl skill review --optimize ./.claude/skills/skill-creator/SKILL.md

Evaluation results

100%

61%

Create a Skill for the FormFusion Document Tool

New skill initialization and structure

Criteria

Without context

With context

init_skill.py invoked

100%

Frontmatter fields only

100%

Description includes triggers

100%

No auxiliary documentation files

100%

Unused init examples removed

100%

Imperative form in body

50%

100%

No When-to-Use section in body

100%

Correct directory structure

25%

100%

References linked with guidance

50%

100%

Process log created

100%

88%

Optimize the Inventory Analytics Skill for Context Efficiency

Progressive disclosure design

Criteria

Without context

With context

SKILL.md under 500 lines

100%

References files created

100%

No duplication

100%

83%

References linked with guidance

80%

100%

One level deep

100%

TOC in large references

Core workflow retained

100%

When-to-Use removed from body

100%

Frontmatter preserved

100%

Referenced files exist

100%

Package the CSV Report Generator Skill for Team Distribution

Script testing and skill packaging

Criteria

Without context

With context

Scripts actually executed

100%

package_skill.py invoked

100%

.skill file created

100%

Validation passes

100%

Unused init examples removed

100%

No extra docs added

100%

Script execution verified

100%

Build log documents process

100%

Frontmatter clean

100%

.skill not inside skill folder

100%

Repository: heimeshoff/Mediatheca
Commit: 38245b8

Evaluated: about 1 month ago
Agent: Claude Code
Model: Claude Sonnet 4.6

Table of Contents

Create a Skill for the FormFusion Document Tool Optimize the Inventory Analytics Skill for Context Efficiency Package the CSV Report Generator Skill for Team Distribution

Is this your skill?

If you maintain this skill, you can claim it as your own. Once claimed, you can manage eval scenarios, bundle related skills, attach documentation or rules, and ensure cross-agent compatibility.