A folder-based personal knowledge system that stores memory, routines, meeting information, and a writing and customer profile in an Obsidian-compatible vault. Obsidian is a note-taking application that stores linked notes as local files.

Organizing personal notes, keeping recurring daily routines, recording meeting intelligence, and maintaining a voice and ideal-customer profile in a folder that works with Obsidian.

It gives information from different activities a shared place to persist instead of leaving it scattered across separate notes and conversations.

secondbrain — Plugin by olelehmann1337

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Claude Code

/plugin marketplace add olelehmann1337/ole-plugins

agentmods

npx agentmods add plugins/olelehmann1337/ole-plugins/secondbrain

Clone the repo

git clone --depth 1 https://github.com/olelehmann1337/ole-plugins

Made for: Claude Code.

Per session not measured What this adds to a session before it is invoked.

When invoked not measured Not applicable: nothing here is loaded into a session.

Security scan A 0 findings. Scan, not verified.

Origin original No closer match found in the catalogue.

Security

Grade A, and why

secondbrain scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/secondbrain/.claude-plugin/plugin.json · 13 lines

What it actually says

{
  "name": "secondbrain",
  "displayName": "Second Brain",
  "version": "1.0.0",
  "description": "Turn any folder into your second brain. Persistent memory, daily routines, meeting intelligence, and a proper voice + ICP profile — all inside an Obsidian-compatible vault.",
  "author": {
    "name": "Ole Lehmann",
    "url": "https://www.theaisolopreneur.com"
  },
  "license": "MIT",
  "keywords": ["obsidian", "solopreneur", "second-brain", "memory", "daily-routines"]
}

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

yesterday First seen · 13 lines scan A 45f0c611d0bb

Subscribe to this mod's changes

secondbrain is a plugin published in the GitHub repository olelehmann1337/ole-plugins (8 stars, last pushed 4mo ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Memory and context Productivity Writing and docs

secondbrain

Getting it into your agent

Grade A, and why

Nothing flagged

What it actually says

What this file has done since we first saw it

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