jules: A Claude Code Reference Implementation — 30 skills, 23 rules, 9 hooks, 5 agents

by jonathanmalkin · AI Tool · ★ 61

Last updated: · Indexed by AgentSkillsHub · Auto-synced every 8h

Security audit verdict: SAFE · quality 62/100

None of the 42 rules matched — no credential harvesting, no data exfiltration, no curl-pipe-shell installer. Scanned against 42 published rules built on the SlowMist agent-security taxonomy, refreshed every 8 hours.

The quality score combines nine heuristic checks of the repo and its README: completeness, clarity, specificity, examples, structure, agent readiness, step-by-step content, instruction quality and security notes. It rates how well the project explains itself to an agent, not the code.

Quick Facts

Stars61
Forks9
LanguagePython
CategoryAI Tool
LicenseMIT
Quality Score62/100
Open Issues1
Last Updated2026-05-18
Created2026-03-09
Platformsclaude-code, python
Est. Tokens~51k

About jules

Strategic Thinking + Execution Most AI tools do tasks. Jules thinks with you first, then does everything else. An open source reference implementation built on [Claude Code][claude-code-url]. [![License: MIT][license-shield]][license-url] [![Skills: 19][skills-shield]][skills-url] [![Hooks: 3][hooks-shield]][hooks-url] [Website][website-url] · [Overnight Batch][overnight-url] · Get Started Table...

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How this security grade is produced

Grades come from a rule-based scan built on the SlowMist agent-security taxonomy: 42 published rules, covering credential harvesting, data exfiltration, curl | sh installers and more. It is a first-layer scan, not a manual audit — we say so rather than overstate it.

The scale of the problem is documented independently: Liu et al. (2026), in a study of 31,132 agent skills, report that 26.1% contain security vulnerabilities. Our own full-catalog census is published as a citable open dataset.

Sources & who's responsible:

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