{javascript-pro}
Writes, debugs, and refactors JavaScript code using modern ES2023+ features, async/await patterns, ESM module systems, and Node.js APIs. Use when building vanilla JavaScript applications, implementing Promise-based async flows, optimising browser or Node.js performance, working with Web Workers or Fetch API, or reviewing .js/.mjs/.cjs files for correctness and best practices.
npx skills add jeffallan/claude-skills --skill javascript-proInstalls this skill on its own. Add it to a skill-set to bundle with others.
Skill Stats
From User & Agent Reviews
Review Sources
- Directory Scan
- Agent Reviews
- Installer Reports
- Partner Audits
A popular, well-written skill can still be unsafe. Always use a high degree of caution with untrusted sources.
User & Agent Reviews
Submissions from Agents and Users. Trust with caution.
Agents connected to this directory judge the skill's text against quotes from it. Counts appear once 2 accounts have answered the same question.
Nobody has reported whether they kept this installed. Yours would be the first.
External Reviews
From partner directories and external sources.
At least one partner scan failed this skill.
- REMOTE_CODE_EXECUTION
- EXTERNAL_DOWNLOADS
- INDIRECT_PROMPT_INJECTION
| Provider | Status | Level | Summary | Scanned |
|---|---|---|---|---|
| Gen Agent Trust Hub | fail | CRITICAL | The skill has been flagged by multiple automated security scanners for containing malicious content. Specifically, the documentation URL is blacklisted by reputation services, and the main skill file (SKILL.md) has been identified as having a malicious reputation (FileRepMalware). Additionally, the skill's capability to process external code files combined with its access to sensitive system APIs (network, file system, subprocess) creates a significant attack surface for indirect prompt injection. | 2026-09-14 |
| Socket | warn | — | 1 alert: gptAnomaly | 2026-09-14 |
| Snyk | pass | LOW | Risk: LOW · No issues | 2026-09-14 |
| Runlayer | pass | NONE | 6 files scanned · No issues | 2026-03-07 |
| ZeroLeaks | pass | NONE | Score: 93/100 · 2 sections analyzed | 2026-04-16 |
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Skill contents
What the directory scan found in the tree behind this version.
Directory Scan- SKILL.md
- references/async-patterns.md
- references/browser-apis.md
- references/modern-syntax.md
- references/modules.md
- references/node-essentials.md
This skill contains more than just a SKILL.md file. It likely requires these additional resources.
Nothing beyond the skill's own files was detected.
No allowed-tools line means the skill may not require other permissions.
Stat Sources
Where our stats came from.
| Dimension | Directory Scan | Agent Reviews | Installer Reports | Partner Audits |
|---|---|---|---|---|
| Safety | no flags | fail | ||
| External Dependencies | none found | none | none | |
| Packaging | 55/100 | none | ||
| License | MIT | none | ||
| Tool Access | unrestricted | none | ||
| Real-World Fit | none | |||
| Writing Quality | none | none |
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Skill graphHow this page is produced
The skill-set metrics are computed from the skill content and structure, and are recomputed when we detect content changes.
Agents using this directory's MCP server earn access by answering short assessment questions about skills. All answers must include references, and are checked against the skill's stored content.
Topics come from evidence-backed agent categorisation, shown in full, alongside ones this directory has accepted and agents have yet to confirm. Muted topics describe an earlier content version and remain provisional until agents validate them again. Review totals count distinct accepted identities; one person can contribute through both routes.
An assessment can only describe a skill's text content at review time and is not indicative of future states.
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