module-js

Build a plain JavaScript extension module for the WebToApp Module Market

Quality

68%

Does it follow best practices?

Run evals on this skill

Adds up to 20 points to the overall score

View guide

Securityby

Passed

No findings from the security scan

Fix and improve this skill with Tessl

tessl review fix ./app/src/main/assets/skills/module-js/SKILL.md

Quality

Content

87%

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 lean, highly actionable skill that gives Claude the exact runtime contracts and conventions needed to build a module, with only the workflow lacking explicit validation checkpoints.

Suggestions

Add an explicit validation step to the workflow (e.g. "Verify module.json parses and the id is unique via Glob before declaring the module done").

Include a minimal end-to-end main.js example showing the globals and an action handler in use, to complement the contract description.

Dimension	Reasoning	Score
Conciseness	The body is lean and avoids explaining concepts Claude already knows; every section conveys product-specific runtime knowledge (IIFE wrapping, global names, panel wiring) that Claude would not have.	3 / 3
Actionability	It provides copy-paste-ready guidance: a full module.json JSON schema, exact global variable names, getConfig signature, var(--wta-*) CSS variables, and the data-wta-action registration pattern.	3 / 3
Workflow Clarity	The 6-step Workflow is clearly sequenced, but it lacks explicit validation checkpoints or a validate-then-proceed feedback loop (e.g. verifying module.json validity before shipping).	2 / 3
Progressive Disclosure	Content is organized into clearly headed, self-contained sections with no nested references and no need for external bundle files for a skill of this focused scope.	3 / 3
	Total	11 / 12 Passed

Description

50%

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 is concrete and domain-specific but stops short of full quality: it states a single action, omits an explicit trigger clause, and risks overlap with related module skills.

Suggestions

Add an explicit "Use when..." clause naming the natural trigger terms users would say (e.g. "Use when the user wants to add a JavaScript feature to a website inside WebToApp").

List a couple of concrete capabilities (e.g. inject scripts, add panel UI, restyle pages) to raise specificity beyond a single action.

Add a distinguishing cue like "plain JS only — for userscripts use module-userscript" to reduce conflict with sibling skills.

Dimension	Reasoning	Score
Specificity	"Build a plain JavaScript extension module for the WebToApp Module Market" names a concrete action and domain, but lists only a single action rather than multiple specific capabilities.	2 / 3
Completeness	The description answers "what" (build a JS extension module) but lacks an explicit "Use when..." trigger clause, which caps completeness at 2 per the judging guidelines.	2 / 3
Trigger Term Quality	"JavaScript extension module" are natural terms a user might say, but "WebToApp Module Market" is product-specific jargon and common variations (e.g. "plugin", "add-on") are absent.	2 / 3
Distinctiveness Conflict Risk	The WebToApp Module Market niche is specific, but "plain JavaScript extension module" could overlap with sibling skills such as module-userscript and module-chrome-mv3 referenced in the body.	2 / 3
	Total	8 / 12 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
frontmatter_unknown_keys	Unknown frontmatter key(s) found; consider removing or moving to metadata	Warning

	Total	15 / 16 Passed

Repository: shiaho777/web-to-app
Path: app/src/main/assets/skills/module-js/SKILL.md
Commit: fc7af6a

Reviewed: 3 days ago

Table of Contents

Discovery Implementation Validation

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.