cornelius: AI-powered second brain template for Claude Code + Obsidian

by Abilityai · Claude Skill · ★ 109

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How to install cornelius

git clone https://github.com/Abilityai/cornelius.git

Taken from the project's README on GitHub. Check the security audit before running it.

Security audit verdict: SAFE · quality 60/100

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. Full audit →

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

Stars109
Forks35
LanguagePython
CategoryClaude Skill
LicenseMIT
Quality Score60/100
Open Issues5
Last Updated2026-10-08
Created2025-11-02
Platformsclaude-code, python
Est. Tokens~20k

About cornelius

Project Cornelius AI-powered second brain template for Claude Code + Obsidian Capture insights, discover connections, and synthesize knowledge - with AI assistance. The whole system in one 3-minute loop: notes become a graph → connection discovery proposes cross-domain bridges → extractors source-tier and provenance-stamp everything at the door → the domain watch fires signals → the incubation...

cornelius alternative? Top 1 similar tools

Looking for a cornelius alternative? If you're comparing cornelius with other claude skill tools, these 1 projects are the closest alternatives on Agent Skills Hub — ranked by topic overlap, star count, and community traction.

  • claude-ai-mcp by anthropics · ⭐ 484

    Report issues related to MCP integration with Claude here.

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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:

View on GitHub → Browse Claude Skill tools