third-brain-v5-skills: what it is, how to install & alternatives

by Mark393295827 · Claude Skill · ★ 123

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

How to install third-brain-v5-skills

git clone https://github.com/Mark393295827/third-brain-v5-skills.git

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

Security audit verdict: SAFE · quality 61/100

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.

agenticai-agentsclaude-skillscodexcursor-rulesknowledge-managementlooploop-engineeringobsidianontology

Quick Facts

Stars123
Forks18
LanguageHTML
CategoryClaude Skill
LicenseMIT
Quality Score61/100
Last Updated2026-07-25
Created2026-05-04
Platformsclaude-code, codex
Est. Tokens~20k

About third-brain-v5-skills

Third Brain V5 Skills Third Brain V5 — 17 production-ready Agent Skills for Claude, Codex, Gemini, Cursor, and Windsurf. Build a persistent Knowledge OS with Obsidian, behavior design, creativity loops, verification, and multi-agent workflows.

Compatible Skills

These tools work well together with third-brain-v5-skills for enhanced workflows:

third-brain-v5-skills alternative? Top 6 similar tools

Looking for a third-brain-v5-skills alternative? If you're comparing third-brain-v5-skills with other claude skill 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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  • agent-second-brain by smixs · ⭐ 367

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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