modern-javascript-patterns

Master ES6+ features including async/await, destructuring, spread operators, arrow functions, promises, modules, iterators, generators, and functional programming patterns for writing clean, efficient JavaScript code. Use when refactoring legacy code, implementing modern patterns, or optimizing JavaScript applications.

Quality

58%

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Securityby

Passed

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Fix and improve this skill with Tessl

tessl review fix ./tests/ext_conformance/artifacts/agents-wshobson/javascript-typescript/skills/modern-javascript-patterns/SKILL.md

The canonical home for this skill is modern-javascript-patterns in wshobson/agents

Quality

Content

32%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 a verbose textbook-style reference that re-teaches JavaScript concepts Claude already knows, with no progressive disclosure or sequenced workflow. It is saved only by its concrete, executable code examples.

Suggestions

Replace the tutorial prose with a concise overview and move the per-feature reference (async patterns, FP patterns, classes, modules, iterators) into separate files under references/, linked one level deep from SKILL.md.

Strip explanations of basics Claude already knows (what arrow functions are, how Promise chaining works) and keep only non-obvious guidance, pitfalls, and decision rules.

Add a short sequenced workflow for the skill's actual use cases (e.g. refactor legacy code -> identify pattern -> apply -> verify behavior) with an explicit verification checkpoint.

Dimension	Reasoning	Score
Conciseness	The ~920-line body is a comprehensive tutorial that extensively explains ES6+ concepts Claude already knows (arrow functions, destructuring, promises, classes, etc.) with heavily padded prose and example catalogues, matching the level-1 'severely verbose' anchor.	1 / 5
Actionability	The JavaScript examples are concrete and copy-paste ready ('const add = (a, b) => a + b;', 'Promise.all(promises).then(...)'), but the skill is a reference catalogue rather than task-guiding instructions, leaving minor gaps versus fully actionable level-5 guidance.	4 / 5
Workflow Clarity	There is no sequenced multi-step process or validation checkpoints; only a rough 'When to Use This Skill' trigger list, which fits the level-2 'rough sequence present but many gaps, validation absent' anchor better than the level-3 stepped anchor.	2 / 5
Progressive Disclosure	No bundle files exist and the entire reference is inlined as one monolithic SKILL.md with no file references; content that clearly belongs in separate files (async patterns, FP patterns, class/module reference) is all inlined, matching the level-2 anchor despite the section headers.	2 / 5
	Total	9 / 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.

The description clearly states both what the skill covers and when to use it, with concrete trigger phrases and good keyword coverage. It is held back only by enumerating features rather than actions and missing a few synonyms.

Dimension	Reasoning	Score
Specificity	Lists many concrete ES6+ features ('async/await, destructuring, spread operators, arrow functions, promises, modules, iterators, generators, and functional programming patterns') giving comprehensive coverage, but these are topics/features enumerated rather than discrete actions the skill performs, leaving a minor gap versus the level-5 anchor.	4 / 5
Completeness	It explicitly answers both what ('Master ES6+ features including...') and when ('Use when refactoring legacy code, implementing modern patterns, or optimizing JavaScript applications') with concrete trigger phrases, matching the level-5 anchor.	5 / 5
Trigger Term Quality	Natural trigger phrases like 'refactoring legacy code', 'implementing modern patterns', and 'optimizing JavaScript applications' are present, but common synonyms such as 'ES6', 'modern JS', or 'clean code' are missing, so it is not the comprehensive level-5 case.	4 / 5
Distinctiveness Conflict Risk	The 'modern JavaScript / ES6+' niche is mostly distinct with concrete triggers, but it could overlap with a general JavaScript or refactoring skill, so it is below the minimal-conflict level-5 anchor.	4 / 5
	Total	17 / 20 Passed

Validation

93%

Warnings & errors only

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

Criteria	Description	Result
skill_md_line_count	SKILL.md is long (928 lines); consider splitting into references/ and linking	Warning

	Total	15 / 16 Passed

Repository: Dicklesworthstone/pi_agent_rust
Path: tests/ext_conformance/artifacts/agents-wshobson/javascript-typescript/skills/modern-javascript-patterns/SKILL.md
Commit: 6453c0b

Reviewed: about 8 hours ago

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