Code Review Checklist
shareAI-lab/learn-claude-code
Reviews code against a five-part checklist covering security, correctness, performance, maintainability and testing, and reports findings in a fixed format.
A skill your agent uses when reviewing scripts, client components, bundles, or runtime behavior related to Avoid inline JavaScript.
MITAuto-check passed
Install Javascript Inline
$ npx skills add thedaviddias/Front-End-Checklist --skill javascript-inline -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install thedaviddias/Front-End-Checklist javascript-inline --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/thedaviddias/Front-End-Checklist.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/javascript-inline .claude/skills/javascript-inline && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "javascript-inline" agent skill from https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/javascript-inline into .claude/skills/javascript-inline/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "javascript-inline", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/javascript-inlineType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add thedaviddias/Front-End-Checklist --skill javascript-inline -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install thedaviddias/Front-End-Checklist javascript-inline --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/thedaviddias/Front-End-Checklist.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/javascript-inline .agents/skills/javascript-inline && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "javascript-inline" agent skill from https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/javascript-inline into .agents/skills/javascript-inline/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "javascript-inline", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add thedaviddias/Front-End-Checklist --skill javascript-inline -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install thedaviddias/Front-End-Checklist javascript-inline --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/thedaviddias/Front-End-Checklist.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/javascript-inline .cursor/skills/javascript-inline && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "javascript-inline" agent skill from https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/javascript-inline into .cursor/skills/javascript-inline/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "javascript-inline", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/thedaviddias/Front-End-Checklist.git --path skills/javascript-inline--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add thedaviddias/Front-End-Checklist --skill javascript-inline -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install thedaviddias/Front-End-Checklist javascript-inline --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/thedaviddias/Front-End-Checklist.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/javascript-inline .gemini/skills/javascript-inline && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "javascript-inline" agent skill from https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/javascript-inline into .gemini/skills/javascript-inline/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "javascript-inline", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install thedaviddias/Front-End-Checklist javascript-inlineInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add thedaviddias/Front-End-Checklist --skill javascript-inline -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/thedaviddias/Front-End-Checklist.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/javascript-inline .github/skills/javascript-inline && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "javascript-inline" agent skill from https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/javascript-inline into .github/skills/javascript-inline/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "javascript-inline", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add thedaviddias/Front-End-Checklist --skill javascript-inline -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install thedaviddias/Front-End-Checklist javascript-inline --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/thedaviddias/Front-End-Checklist.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/javascript-inline .opencode/skills/javascript-inline && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "javascript-inline" agent skill from https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/javascript-inline into .opencode/skills/javascript-inline/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "javascript-inline", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
javascript-inline- GitHub stars
- 74k
- Token cost
- ~461 tokens
- SKILL.md length
- 173 words
- Files
- 2 (incl. references)
- Skills in repo
- 390
- Repo updated
- First seen
- Licence
- MIT
At a glance
A skill your agent uses when reviewing scripts, client components, bundles, or runtime behavior related to Avoid inline JavaScript.
- Reviewing scripts
- SKILL.md covers Quick Reference, Check, Fix and Explain, plus 1 more section
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- Client components
What it does
Javascript Inline is an agent skill from thedaviddias/Front-End-Checklist. Use when reviewing scripts, client components, bundles, or runtime behavior related to Avoid inline JavaScript. Inspect both source code and the browser execution path so fixes target the real bottleneck or bug.
Its SKILL.md is about 460 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/rule.md`).
It works with JavaScript. The repository describes itself as: 🗂 The essential checklist for modern web development, for humans and AI agents. The licence is MIT.
When your agent uses it
- Reviewing scripts
- Client components
- Runtime behavior related to Avoid inline JavaScript
Example prompts
- “/javascript-inline”
What it can do on your machine
Read from SKILL.md and the folder at commit e8d14d0. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
Links to these hosts (documentation or services it may open):
frontendchecklist.io
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Javascript Inline loads about 461 tokens when it runs, and up to ~7.8k if it reads all its reference files. Until then it costs about 57 tokens; SKILL.md has 173 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from thedaviddias/Front-End-Checklist at commit e8d14d0, republished under its MIT licence (© thedaviddias). 173 words, ~461 tokens.
Download SKILL.mdSave it as
.claude/skills/javascript-inline/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.- name
- javascript-inline
- description
- Use when reviewing scripts, client components, bundles, or runtime behavior related to Avoid inline JavaScript. Inspect both source code and the browser execution path so fixes target the real bottleneck or bug.
- metadata.category
- javascript
- metadata.priority
- high
- metadata.difficulty
- beginner
- metadata.estimatedTime
- 15
- metadata.source
- frontendchecklist.io
- metadata.url
- https://frontendchecklist.io/rules/javascript/javascript-inline
Avoid inline JavaScript
Inline JavaScript breaks browser caching, violates Content Security Policy (CSP), and creates unmaintainable spaghetti code mixing markup with behavior.
Quick Reference
- Move onclick/onmouseover handlers to external JS files
- Use addEventListener instead of inline event handlers
- Exception: critical above-the-fold JS can be inlined
- External files enable browser caching across pages
Check
Verify that JavaScript code is not mixed with HTML markup using external script files and proper separation of concerns for better maintainability and performance.
Fix
Move inline JavaScript to external files, implement proper event handling, and use modern JavaScript patterns for DOM interaction.
Explain
Explain why separating JavaScript from HTML improves maintainability, enables caching, reduces security risks, and follows best practices for separation of concerns.
Code Review
Review scripts, client components, and browser execution paths related to Avoid inline JavaScript. Flag exact imports, event handlers, runtime side effects, or blocking operations that violate the rule, and state how the change should be verified in the browser.
For full implementation details, code examples, and framework-specific guidance,
see references/rule.md.
Rule page: https://frontendchecklist.io/rules/javascript/javascript-inline
© thedaviddias, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 1 other file (references) in skills/javascript-inline of thedaviddias/Front-End-Checklist.
- SKILL.md
- references/rule.md
Open the folder on GitHubat commit e8d14d0
Compare with similar skills
Javascript Inline next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Javascript Inline this skillthedaviddias/Front-End-Checklist | 74k | — | ~461 | Automated safety check: Pass | MIT | |
| Code Review ChecklistshareAI-lab/learn-claude-code | 78k | 5 repos | ~1.1k | Automated safety check: Pass | MIT | |
| Tailwindcss Developmentanonaddy/anonaddy | 4.9k | 10 repos | ~865 | Automated safety check: Pass | MIT | |
| Figma use_figma Plugin API Ruleswarpdotdev/warp | 65k | 4 repos | ~4.4k | Automated safety check: Pass | AGPL-3.0 | |
| GSAP Core Animationgreensock/gsap-skills | 16k | 4 repos | ~3.7k | Automated safety check: Pass | MIT | |
| JavaScript Concept Fact Checkerleonardomso/33-js-concepts | 67k | 1 repos | ~5k | Automated safety check: Pass | MIT |
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Related
Works with
Questions about Javascript Inline
What does Javascript Inline do?
A skill your agent uses when reviewing scripts, client components, bundles, or runtime behavior related to Avoid inline JavaScript. Javascript Inline is an agent skill from thedaviddias/Front-End-Checklist. Use when reviewing scripts, client components, bundles, or runtime behavior related to Avoid inline JavaScript.
When should I use Javascript Inline?
Javascript Inline fits situations like: reviewing scripts; client components; runtime behavior related to Avoid inline JavaScript.
How do I install Javascript Inline in Claude Code?
Run `npx skills add thedaviddias/Front-End-Checklist --skill javascript-inline -a claude-code`. Or copy the skill folder (skills/javascript-inline in thedaviddias/Front-End-Checklist) into .claude/skills/javascript-inline in your project. Claude Code loads it when a task matches its description.
How do I install Javascript Inline in Codex?
Run `npx skills add thedaviddias/Front-End-Checklist --skill javascript-inline -a codex`. Or copy the skill folder (skills/javascript-inline in thedaviddias/Front-End-Checklist) into .agents/skills/javascript-inline in your project. Codex loads it when a task matches its description.
Can I use Javascript Inline in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add thedaviddias/Front-End-Checklist --skill javascript-inline -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/javascript-inline, .gemini/skills/javascript-inline, .github/skills/javascript-inline and .opencode/skills/javascript-inline in your project.
What does Javascript Inline need to run?
SKILL.md names no scripts, command-line tools or credentials: Javascript Inline is instructions for the agent only.
Does Javascript Inline access the network?
SKILL.md names 1 domain. As links in the text: frontendchecklist.io. This is read from the text; nothing was executed.
Is Javascript Inline safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Javascript Inline use?
Javascript Inline is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Javascript Inline use?
About 461 tokens (SKILL.md is roughly 1.8k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 7.4k tokens, read only when the agent opens those files.
What are the alternatives to Javascript Inline?
Skills that share tags, products or a category with Javascript Inline: Code Review Checklist (shareAI-lab/learn-claude-code, 78k stars), Tailwindcss Development (anonaddy/anonaddy, 4.9k stars), Figma use_figma Plugin API Rules (warpdotdev/warp, 65k stars) and GSAP Core Animation (greensock/gsap-skills, 16k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Javascript Inline?
thedaviddias (a GitHub user) maintains it in thedaviddias/Front-End-Checklist, which has 74,388 GitHub stars. The repository holds 390 skills in this directory. The repository was last updated on October 6, 2026.
Source: thedaviddias/Front-End-Checklist on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.