heinzel: A ruleset that turns AI coding assistants (e.g

by wintermeyer · Agent Tool · ★ 103

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

How to install heinzel

git clone https://github.com/wintermeyer/heinzel.git

Taken from the project's README on GitHub.

Security audit verdict: SAFE · quality 65/100

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.

claude-codedebianfreebsdlinuxmacosopencoderedhatsusesysadminsysadmin-tool

Quick Facts

Stars103
Forks18
LanguageShell
CategoryAgent Tool
LicenseMIT
Quality Score65/100
Last Updated2026-11-05
Created2026-02-25
Platformsclaude-code, cli
Est. Tokens~19k

About heinzel

Heinzel — System Administration with Safety Guardrails Heinzel is a set of rules that turns an AI coding assistant into a cautious, methodical sysadmin. It works with Claude Code, OpenCode, or any other terminal-based AI tool that can read project files and run shell commands.

Compatible Skills

These tools work well together with heinzel for enhanced workflows:

  • ai-marketing-claude-code-skills — semantic(0.22)+complementary+same_lang+similar_pop+shared_platform (58%)
  • code-notify — semantic(0.18)+complementary+rare_topics+same_lang+similar_pop+shared_platform (56%)
  • skills — semantic(0.24)+complementary+same_lang+similar_pop+shared_platform (54%)

heinzel alternative? Top 6 similar tools

Looking for a heinzel alternative? If you're comparing heinzel with other agent tool tools, these 6 projects are the closest alternatives on Agent Skills Hub — ranked by topic overlap, star count, and community traction.

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  • os-moda by bolivian-peru · ⭐ 113

    An operating system built for AI agents — talk to your NixOS server instead of SSH-ing in. Typed, audited tool

  • KKTerm by ryantsai · ⭐ 507

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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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