Obsidian Second Brain Agent Skill
by eugeniughelburPersistent memory for Claude Code, Codex and 6 other AI agents, stored as plain markdown in your Obsidian vault. New: Crew, one shared logbook so Claude Code, Codex, Cursor and Grok Bot know what each other did. 48 commands: semantic search, self-rewriting notes, key-less research, scheduled agents.
Obsidian Second Brain is an open-source agent skill by eugeniughelbur, written mainly in Python, with 5,085 GitHub stars and the MIT license. Its code was last updated Oct 28, 2026.
Scan summary: scanned Nov 5, 2026 at commit deff215. Seen able to read environment and secrets, connect to the internet. Scan policy
What Obsidian Second Brain can touch
- Our checks did not find this. The tool may still do it.Run shell commandsNot seen in this scan
- Our checks did not find this. The tool may still do it.Run dynamic codeNot seen in this scan
- Our checks did not find this. The tool may still do it.Read or write filesNot seen in this scan
- Seen in this scan, either in the code or while it ran.Read environment and secretsFound in the code by our scan
- Our checks did not find this. The tool may still do it.Control a web browserNot seen in this scan
- Our checks did not find this. The tool may still do it.Connect to databasesNot seen in this scan
- Our checks did not find this. The tool may still do it.Read or send messagesNot seen in this scan
- Our checks did not find this. The tool may still do it.Touch money or tradingNot seen in this scan
- Seen in this scan, either in the code or while it ran.Connect to the internetFound in the code by our scan
"Not seen" means our checks did not find it, and the tool may still do it. Covers commit deff215, Nov 5, 2026. See the scan policy.
Before you install Obsidian Second Brain
AgenticMart scanned Obsidian Second Brain on Nov 5, 2026 with automated checks for hidden code, known-malicious packages, leaked secrets and vulnerable dependencies. The result covers one commit under our scan policy, so review what access you give it and check any advisories shown here.
What it can access
- A skill is instructions plus optional scripts. The instructions steer your agent; any scripts run on your machine when the agent uses the skill.
- Based on its description and topics, it likely needs to run shell commands.
Before you install
- Keep tool-call approval on, and run it in a container if you can.
- Pin the version you reviewed instead of always installing the latest release.
- Read the tool list or scripts before the first run, and keep approval prompts on for actions that write, send or delete.
- Maintained by eugeniughelbur on GitHub, 5,085 stars and 631 forks. Popularity is not proof of safety.
- Last code change: Oct 28, 2026.
- Open-source license: MIT.
Obsidian Second Brain is an open-source agent skill by eugeniughelbur, written mainly in Python. Persistent memory for Claude Code, Codex and 6 other AI agents, stored as plain markdown in your Obsidian vault. New: Crew, one shared logbook so Claude Code, Codex, Cursor and Grok Bot know what each other did. 48 commands: semantic search, self-rewriting notes, key-less research, scheduled agents.
At a glance
- Stars
- 5.1k
- Forks
- 631
- Language
- Python
- License
- MIT
- Created
- Mar 2026
- Last update
- Oct 28, 2026
- Type
- Agent Skill
- Price
- Free
Topics
Questions about Obsidian Second Brain
What is Obsidian Second Brain?
Persistent memory for Claude Code, Codex and 6 other AI agents, stored as plain markdown in your Obsidian vault. New: Crew, one shared logbook so Claude Code, Codex, Cursor and Grok Bot know what each other did. 48 commands: semantic search, self-rewriting notes, key-less research, scheduled agents.
Who maintains Obsidian Second Brain?
Obsidian Second Brain is maintained by eugeniughelbur on GitHub (eugeniughelbur/obsidian-second-brain). AgenticMart lists it from public repository data.
Is Obsidian Second Brain safe to use?
AgenticMart scanned Obsidian Second Brain on Nov 5, 2026 with automated checks for hidden code, known-malicious packages, leaked secrets and vulnerable dependencies. The result covers one commit under our scan policy, so review what access you give it and check any advisories shown here.
What license does Obsidian Second Brain use?
It is published under the MIT license.
Obsidian Second Brain alternatives
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| Name | Stars | Licence | Last updated | Scan |
|---|---|---|---|---|
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