CtrlK
BlogDocsLog inGet started
Tessl Logo

javascript-testing-patterns

Comprehensive guide for implementing robust testing strategies in JavaScript/TypeScript applications using modern testing frameworks and best practices.

36

Quality

33%

Does it follow best practices?

Run evals on this skill

Adds up to 20 points to the overall score

View guide

SecuritybySnyk

Passed

No findings from the security scan

Fix and improve this skill with Tessl

tessl review fix ./plugins/AI-Agents-Safe-Coding-Skills-claude/skills/javascript-testing-patterns/SKILL.md

The canonical home for this skill is javascript-testing-patterns in rmyndharis/antigravity-skills

SKILL.md
Quality
Evals
Security

Quality

Content

21%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.

The body is well-sectioned but contains almost no actual testing knowledge — just generic process boilerplate and a pointer to a missing playbook file. It is not actionable and fails to deliver the promised patterns.

Suggestions

Replace the generic 'Instructions' bullets with concrete, executable guidance: example test snippets, mocking patterns, and the specific commands to run tests in common frameworks.

Either create the referenced 'resources/implementation-playbook.md' with real patterns or remove the dangling reference so progressive disclosure actually resolves.

Delete the filler 'Do not use this skill when' section and the duplicated description line to tighten conciseness.

DimensionReasoningScore

Conciseness

Short but padded with several filler sections — a duplicated description line, generic 'Instructions' boilerplate, and a vacuous 'Do not use this skill when' section — adding no real value.

2 / 5

Actionability

Entirely abstract guidance ('Clarify goals...', 'Apply relevant best practices and validate outcomes') with no concrete code, commands, or actual testing patterns, matching the 'entirely vague or abstract' anchor.

1 / 5

Workflow Clarity

A rough four-step sequence exists but the steps are poorly defined and generic, with validation only mentioned abstractly rather than as concrete checkpoints.

2 / 5

Progressive Disclosure

Body is organized into clear sections with a signaled one-level reference to a playbook, but the referenced file 'resources/implementation-playbook.md' does not exist in the bundle, so navigation breaks.

3 / 5

Total

8

/

20

Passed

Description

45%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.

The description clearly identifies the JS/TS testing domain but relies on abstract, buzzword-heavy language with no concrete actions or explicit 'Use when' trigger guidance. It is recognizable but generic and would benefit from specific capabilities and trigger phrases.

Suggestions

Replace 'implementing robust testing strategies' and 'best practices' with concrete actions such as 'write unit, integration, and e2e tests, mock dependencies, and configure CI test runs'.

Add an explicit 'Use when...' clause listing natural trigger phrases users say, e.g. 'Use when setting up Jest/Vitest, writing unit tests, mocking APIs, or adding test steps to CI.'

Name specific frameworks (Jest, Vitest, Playwright) and file types to improve trigger-term coverage and distinctiveness.

DimensionReasoningScore

Specificity

Names the JS/TS testing domain but offers only generic actions like 'implementing robust testing strategies' and 'best practices' with no concrete operations, matching the anchor 'Names the domain but actions are minimal or generic'.

2 / 5

Completeness

Provides a clear 'what' (testing strategies for JS/TS) but no 'Use when...' trigger clause, so per the rubric cap completeness cannot exceed 3.

3 / 5

Trigger Term Quality

Includes relevant keywords ('testing', 'JavaScript', 'TypeScript', 'testing frameworks') but misses common natural variations users say ('unit tests', 'TDD', 'mocking', framework names like jest) and any file extensions.

3 / 5

Distinctiveness Conflict Risk

The JS/TS testing niche is somewhat specific, but the vague phrasing ('robust testing strategies', 'best practices') leaves overlap risk with general or framework-specific testing skills.

3 / 5

Total

11

/

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.

Validation15 / 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
administrakt0r/AI-Agents-Safe-Coding-Skills
Reviewed

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.