undefined-ui/second-brain-os
Guides and resources for AI engineers: an agents course, five handbooks, a hands-on second-brain project and a vetted reading list.
⚡ Executive Summary & Quick Facts
Authoritative Sourcesecond-brain-os is second-brain-os is an open-source project written in HTML: 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..
“According to real-time open source telemetry recorded on GitHubRepo.cloud (as of November 2026), undefined-ui/second-brain-os has accumulated 1,564 GitHub stars and 267 forks. It is written in HTML, licensed under MIT, and ranks #6,543 globally. It is actively maintained with the latest commit recorded on Nov 3, 2026.”
| Repository | undefined-ui/second-brain-os ↗ |
|---|---|
| Primary Category | agent skills |
| Language & Stack | HTML |
| Software License | MIT |
| Community Traction | ★ 1.6K stars · ⑂ 267 forks · #6,543 globally |
| Maintenance | ● Active (Last commit: Nov 3, 2026) · 7 open issues |
| Target Audience | Developers and engineering teams building with HTML, seeking reliable, tested, and actively maintained tooling for production workloads. |
🛡️ Repository Maintenance & Health Audit (2026)
Health Score: 97/100 · Grade A+Yes, second-brain-os is actively maintained. Continuous telemetry recorded the last code commit on Nov 3, 2026 (9 days ago). Supported by 1,564 stars and 267 community forks, this repository holds a calculated health index of 97/100, reflecting very active (commits within last 14 days) and healthy issue cadence.
Star History
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Keep your repository README looking professional and dynamic. As our continuous crawler records new stars, these official SVG badges update in real time with zero maintenance.
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[](https://githubrepo.cloud/repo/undefined-ui/second-brain-os?utm_source=readme_chart)Compact badges for your README header. Real-time stars, velocity, health audit, and rank.
[](https://githubrepo.cloud/repo/undefined-ui/second-brain-os?utm_source=readme_badge) [](https://githubrepo.cloud/repo/undefined-ui/second-brain-os?utm_source=readme_badge) [](https://githubrepo.cloud/repo/undefined-ui/second-brain-os?utm_source=readme_badge) [](https://githubrepo.cloud/repo/undefined-ui/second-brain-os?utm_source=readme_badge) [](https://githubrepo.cloud/repo/undefined-ui/second-brain-os?utm_source=readme_badge)Momentum
+588
STARS · LAST 30 DAYS
20
PER DAY
#18
MOST-STARRED HTML
| Window | 7 days | 30 days | 90 days |
|---|---|---|---|
| Stars gained | +588 | +588 | +1.8K |
| Per day | 84 | 20 | 20 |
| Forks gained | +112 | +112 | +13 |
second-brain-os gained 588 stars in the last 30 days, about 20 a day, and now has 1.6K. It is about 1 year old and has averaged roughly 1.6K stars a year. It ranks #18 among HTML repositories and #6,543 across all languages on GitHubRepo.
Trending Record
42
DAYS ON TRENDING
#115
BEST RANK
Sep 26, 2026
FIRST APPEARANCE
Active
STATUS TODAY
second-brain-os has maintained a continuous presence across global trending indexes, peaking at #115. Below is the 30-day activity profile:
💡 Overview
second-brain-os is an open-source project written in HTML: 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.
Engineered for speed, consistency, and developer ease, it solves common hurdles in agent-skills, ai-agents, claude. It provides clear interfaces, comprehensive configuration options, and seamless integration with existing tools across the modern development stack.
⚡ Key Features
Optimized execution pipeline written in HTML for predictable speed.
Zero-friction configuration with comprehensive sensible defaults out of the box.
Cross-platform runtime support across Linux, macOS, and Windows environments.
Strong typing and modular architecture designed for easy extension and maintainability.
Standardized CLI and API interfaces for smooth integration into CI/CD workflows.
Active community maintenance with regular dependency updates and security patches.
📥 Installation
$ git clone https://github.com/undefined-ui/second-brain-os.git
cd second-brain-os⚙ System Requirements
Platforms
- • macOS
- • Linux
- • Windows
Runtime & Dependencies
HTML environment and standard tooling
Architecture
x86_64, ARM64 (Apple Silicon & Graviton)
🧠 How It Works
second-brain-os coordinates its core functionality through a modular HTML pipeline. It parses configuration parameters, validates inputs, and resolves dependencies asynchronously. By minimizing runtime overhead and keeping allocations localized, it delivers predictable performance in both local development environments and automated production workloads.
🎯 Production Use Cases
Autonomous AI Agents
Orchestrate intelligent workflows and tool-calling routines with second-brain-os.
Model Inference & Prompting
Integrate fast, local or cloud-hosted generative AI models directly into production code.
Context Memory & RAG
Augment language models with dynamic vector retrieval and structured project memory.
Developer Productivity
Automate repetitive engineering tasks, code generation, and test creation using AI agents.
🚀 Getting Started
Install second-brain-os using your package manager: `git clone https://github.com/undefined-ui/second-brain-os.git`
Initialize your project workspace or configuration file for second-brain-os.
Import second-brain-os into your codebase or invoke it directly from your terminal.
Execute your test suite or run `second-brain-os --help` to verify successful setup.
👍 Strengths
⚠️ Considerations
⇄ Alternatives & Direct Competitors
👥 Who Should Use This
Developers and engineering teams building with HTML, seeking reliable, tested, and actively maintained tooling for production workloads.
🏆 Nearby in the Rankings
undefined-ui/second-brain-os is currently ranked #6,543 by stars across every repository tracked on GitHubRepo. These are adjacent projects:
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|---|---|---|---|---|
| #6,538 | ccbrown/iocraft | Rust | ★ 1.6K | Compare ↗ |
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| #6,543 | undefined-ui/second-brain-os This Project | HTML | ★ 1.6K | |
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Frequently Asked Questions
What does second-brain-os do? +
Guides and resources for AI engineers: an agents course, five handbooks, a hands-on second-brain project and a vetted reading list.
Is second-brain-os actively maintained in 2026? +
Yes, second-brain-os is actively maintained. The latest code push was recorded on Nov 3, 2026 (9 days ago). It holds a calculated Maintenance Health Score of 97/100 (A+ rating) with 1,564 stars and 7 open issues.
What language is second-brain-os written in? +
The primary language is HTML. Topics include: agent-skills, ai-agents, ai-engineering, claude, claude-code.
How many stars does second-brain-os have? +
second-brain-os has 1,564 stars and 267 forks on GitHub.
How does second-brain-os rank among GitHub repositories? +
With 1,564 stars, undefined-ui/second-brain-os is ranked #6,543 globally across all repositories tracked on GitHubRepo and #18 among HTML projects.
What license is second-brain-os distributed under? +
The repository reports a MIT license. Always verify the repository LICENSE file for legal terms.
