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messaging-ab-tester

Generate 3-5 messaging variants for a value proposition, design structured A/B tests, and analyze results to determine which framing resonates most with ICP. Tests can run via LinkedIn organic posts, cold email subject line splits, or both. Pure reasoning for variant generation and analysis — the user deploys the tests through their own tools. Use when a team can't decide between messaging angles and needs data, not opinions.

68

Quality

85%

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SKILL.md
Quality
Evals
Security

Quality

Content

81%Weight 40%Scale 1-5

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

A highly actionable, clearly sequenced multi-phase skill with strong templates and validation checkpoints. Its main weakness is mild redundancy in the intro, Cost, and Tools Required sections that could be trimmed.

Suggestions

Trim the 'Cost' and 'Tools Required' sections or merge them — they restate 'pure reasoning, user deploys via own tools' already in the description.

Remove the restated positioning in the intro paragraph since the frontmatter description already covers it.

Consider moving the long Phase 4 output-format template into a reference file to keep the main body as an overview.

DimensionReasoningScore

Conciseness

Mostly efficient and well-organized, but the intro restates the description and the 'Cost' and 'Tools Required' sections repeat the 'pure reasoning / user deploys via own tools' point already made in the frontmatter.

3 / 5

Actionability

Provides copy-paste-ready variant and output-format templates, concrete per-channel metric lists, a weighted scoring framework, and explicit statistical-significance thresholds covering the common cases.

5 / 5

Workflow Clarity

Phases 0–4 are clearly sequenced with explicit validation checkpoints (minimum sample sizes, >20% relative-difference rule) and a winner-selection feedback loop guiding the next test.

5 / 5

Progressive Disclosure

Single, well-sectioned SKILL.md with no bundle files; the large output-format template is reasonably inline but could be split into a reference, leaving minor organization gaps.

4 / 5

Total

17

/

20

Passed

Description

83%Weight 40%Scale 1-5

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

A strong, third-person description that states concrete capabilities and gives an explicit 'Use when' trigger. It is specific and distinctive, with only minor room to broaden natural trigger-term synonyms.

Suggestions

Add a couple of plain-language trigger synonyms (e.g., 'copy testing', 'positioning test', 'messaging experiment') to broaden natural-term coverage.

Consider naming file extensions or output artifacts (e.g., '.csv results', 'messaging test report') to sharpen distinctiveness.

DimensionReasoningScore

Specificity

Lists several concrete actions ('Generate 3-5 messaging variants', 'design structured A/B tests', 'analyze results') plus specific channels (LinkedIn organic, cold email subject line splits), with only minor gaps in coverage.

4 / 5

Completeness

Clearly answers 'what' (generate/design/analyze) and explicitly answers 'when' via 'Use when a team can't decide between messaging angles and needs data, not opinions.'

5 / 5

Trigger Term Quality

Includes natural terms users would say ('messaging variants', 'value proposition', 'A/B tests', 'messaging angles', 'ICP', 'cold email subject line splits'); a few common synonyms are missing, so it falls just short of comprehensive.

4 / 5

Distinctiveness Conflict Risk

Occupies a clear niche (ICP messaging A/B testing via LinkedIn/cold email) with distinct triggers; minor overlap risk with general marketing/copywriting skills.

4 / 5

Total

17

/

20

Passed

Validation

93%

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation — 15 / 16 Passed

Validation for skill structure

CriteriaDescriptionResult

frontmatter_unknown_keys

Unknown frontmatter key(s) found; consider removing or moving to metadata

Warning

Total

15

/

16

Passed

Repository
gooseworks-ai/goose-skills
Reviewed

Table of Contents

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