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skill-creator

Create new skills, modify and improve existing skills, and measure skill performance. Use when users want to create a skill from scratch, update or optimize an existing skill, run evals to test a skill, benchmark skill performance with variance analysis, or optimize a skill's description for better triggering accuracy.

89

1.90x
Quality

85%

Does it follow best practices?

Impact

95%

1.90x

Average score across 3 eval scenarios

SecuritybySnyk

Passed

No known issues

SKILL.md
Quality
Evals
Security

Evaluation results

85%

30%

Feature Request Triage Skill for Customer Success

Skill authoring conventions

Criteria
Without context
With context

Pushy description

0%

100%

When-to-use in frontmatter only

100%

100%

Description covers what AND when

0%

100%

Imperative voice in body

100%

100%

SKILL.md under 500 lines

100%

100%

Evals without assertions

100%

0%

Realistic test prompts

100%

100%

Evals.json schema

0%

100%

Valid YAML frontmatter

0%

100%

100%

93%

Evaluation Setup for the Changelog Generator Skill

Eval workflow orchestration

Criteria
Without context
With context

Descriptive eval names

0%

100%

Empty assertions array

0%

100%

Correct metadata schema

30%

100%

Same-turn spawn — both directions

0%

100%

Correct baseline type

0%

100%

Workspace sibling convention

40%

100%

generate_review.py for viewer

0%

100%

Viewer before revisions

0%

100%

Timing data capture noted

0%

100%

100%

10%

Optimize Triggering for the Changelog Generator Skill

Description optimization query design

Criteria
Without context
With context

Query count ~20

100%

100%

Has both trigger types

100%

100%

Should-trigger count in range

100%

100%

Should-not-trigger count in range

100%

100%

Concrete query specificity

100%

100%

Near-miss negative queries

100%

100%

HTML eval data replaced

100%

100%

HTML placeholders replaced

100%

100%

run_loop model flag

0%

100%

Repository
anthropics/claude-plugins-official
Evaluated
Agent
Claude Code
Model
Claude Sonnet 4.6

Table of Contents

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.