HTML · MIT
undefined-ui/second-brain-os
An AI second brain that maintains itself. Full guide, starter vault, agent skills and scripts for a self-organizing knowledge base in Claude Code and Obsidian.
★ 1.1k
Stars
181 forks · 3 open issues
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Growth · stale
We stopped seeing this repository in its topic's top results, so its star count is frozen at the date it was last read. Subtracting from a frozen number would read as zero growth, which would be false, so no rate is shown.
22.0
Momentum / 100
see the breakdown below
2mo ago
Created
last push 25d ago
Star history
How this score was built
| Component | Weight | Earned | Why |
|---|---|---|---|
| Velocity | 55 | 0.0 | — — no measurable rate |
| Acceleration | 15 | 0.0 | needs 7-day and 30-day rates side by side |
| Freshness | 15 | 13.1 | last push 25d ago; decays to zero at 180 days |
| Scale | 15 | 8.8 | 1.1k stars, log-scaled against 150k — stops a 3-star repo topping the board |
| Momentum | 100 | 22.0 | capped at 35 because growth is unmeasured |
Detail
| Topics | agent-skillsai-agentsclaudeclaude-codeclaude-skillsknowledge-graphknowledge-managementllmmcpobsidianpersonal-knowledge-basepkmsecond-brain |
| Matched on | AI Agents (ai-agents) Agent Skills & MCP (agent-skills, mcp) LLM & Inference (llm) |
| Short window | no snapshot 5–10 days old yet |
| Long window | +84 stars over 26 days = 3.2/day |
| Lifetime average | 18.79 stars/day over 59 days |
| First seen here | 2026-10-11 |
| Last read | 17d ago |