Compare two AI tools side by side
Put any two skills or MCP servers next to each other: risk grade, what each can access, how popular it is, and how to install it.
| What | claude-brain | obsidian-second-brain |
|---|---|---|
| Risk grade | CC · Moderate risk signals Based on public adoption and transparency signals as of Oct 19, 2026. Our opinion, not a code audit or security guarantee. | CC · Moderate risk signals Based on public adoption and transparency signals as of Oct 16, 2026. Our opinion, not a code audit or security guarantee. |
| Type | AI agent skill | AI agent skill |
| Est. context load | ~76 tokens idle · ~450 tokens when active (on-demand skill) | ~104 tokens idle · ~550 tokens when active (on-demand skill) |
| GitHub stars | 581 | 5k |
| Weekly npm downloads | — | — |
| Local files | Reads & writes local folders | Reads local files |
| Command execution | Runs shell or system commands | No shell command runner noted |
| Network reach | Connects to outside service API | Connects to outside service API |
| Credentials | Requires API key or token | Requires API key or token |
| Package source | GitHub (memvid/claude-brain) | GitHub (eugeniughelbur/obsidian-second-brain) |
| Install command | Source repo only | Source repo only |
| Bottom line | claude-brain reads local files and connects to external service APIs; restrict its folder reach, network access, and credentials before installing. | obsidian-second-brain (agent skill) requires careful permission scoping — local file access: Agents gain read/write access to your entire Obsidian vault; malicious prompts or injected instructions could exfiltrate or corrupt sensitive notes. |
Based on public adoption and transparency signals as of Oct 29, 2026. Our opinion, not a code audit or security guarantee.
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