smart-second-brain: A free, open-source Obsidian plugin that makes your vault smarter

by s2b-dev · Agent Tool · ★ 1.3k

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

Security audit verdict: SAFE · quality 63/100

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.

aiai-agentslocal-firstobsidianobsidian-mdobsidian-pluginragsemantic-search

Quick Facts

Stars1,312
Forks119
LanguageTypeScript
CategoryAgent Tool
LicenseMIT
Quality Score63/100
Open Issues39
Last Updated2026-09-28
Created2023-10-02
Platformsnode
Est. Tokens~15k

About smart-second-brain

Your Smart Second Brain is a free and open-source Obsidian plugin that makes your vault smarter: better search, an interactive knowledge graph, and an AI assistant that actually knows your notes. Search surfaces your notes, the graph groups them into the topics your vault is actually about, and the assistant can draw on both when answering.

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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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