dgesteves/onsystem
Keeps coding agents on your design system: catches palette colors, native elements and APIs your system lacks, at every edit and pull request, with the fix. Set it up once in your design-system package; every app in your monorepo gets it.
⚡ Executive Summary & Quick Facts
Authoritative Sourceonsystem is onsystem is an open-source project written in TypeScript: Keeps coding agents on your design system: catches palette colors, native elements and APIs your system lacks, at every edit and pull request, with the fix. Set it up once in your design-system package; every app in your monorepo gets it.. It provides a free, self-hosted open-source alternative to Cursor.
| Repository | dgesteves/onsystem ↗ |
|---|---|
| Primary Category | accessibility |
| Language & Stack | TypeScript |
| Software License | MIT |
| Community Traction | ★ 73 stars · ⑂ 3 forks · #22,318 globally |
| Maintenance | ● Active (Last commit: Oct 28, 2026) · 21 open issues |
| Replaces SaaS | Open Source Cursor Alternative ($20/month per user) → |
| Target Audience | Developers and engineering teams building with TypeScript, seeking reliable, tested, and actively maintained tooling for production workloads. |
Star History
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Momentum
+10
STARS · LAST 30 DAYS
1
PER DAY
#2,428
MOST-STARRED TypeScript
| Window | 7 days | 30 days | 90 days |
|---|---|---|---|
| Stars gained | +7 | +10 | +90 |
| Per day | 1 | 1 | 1 |
| Forks gained | +1 | +3 | +10 |
onsystem gained 10 stars in the last 30 days, about 1 a day, and now has 73. It is about 1 year old and has averaged roughly 73 stars a year. It ranks #2,428 among TypeScript repositories and #22,318 across all languages on GitHubRepo.
Trending Record
4
DAYS ON TRENDING
#19641
BEST RANK
Oct 25, 2026
FIRST APPEARANCE
Active
STATUS TODAY
onsystem has maintained a continuous presence across global trending indexes, peaking at #19641. Below is the 30-day activity profile:
💡 Overview
onsystem is an open-source project written in TypeScript: Keeps coding agents on your design system: catches palette colors, native elements and APIs your system lacks, at every edit and pull request, with the fix. Set it up once in your design-system package; every app in your monorepo gets it.
Engineered for speed, consistency, and developer ease, it solves common hurdles in accessibility, agent-guardrails, ai-agents. 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 TypeScript 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
$ npm install onsystem
⚙ System Requirements
Platforms
- • macOS
- • Linux
- • Windows
Runtime & Dependencies
Node.js >= 18, npm, pnpm or bun
Architecture
x86_64, ARM64 (Apple Silicon & Graviton)
🧠 How It Works
onsystem coordinates its core functionality through a modular TypeScript 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 onsystem.
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 onsystem using your package manager: `npm install onsystem`
Initialize your project workspace or configuration file for onsystem.
Import onsystem into your codebase or invoke it directly from your terminal.
Execute your test suite or run `onsystem --help` to verify successful setup.
👍 Strengths
⚠️ Considerations
⇄ Alternatives & Direct Competitors
👥 Who Should Use This
Developers and engineering teams building with TypeScript, seeking reliable, tested, and actively maintained tooling for production workloads.
🏆 Nearby in the Rankings
dgesteves/onsystem is currently ranked #22,318 by stars across every repository tracked on GitHubRepo. These are adjacent projects:
| Rank | Repository | Language | Stars | Action |
|---|---|---|---|---|
| #22,283 | 0xS4N4TG/papercut-explainer | TypeScript | ★ 74 | Compare ↗ |
| #22,283 | JamesZhaoY/logicc2api | JavaScript | ★ 74 | Compare ↗ |
| #22,283 | lvt1693/mashloop | JavaScript | ★ 74 | Compare ↗ |
| #22,283 | Metamorfolog/file_action | C# | ★ 74 | Compare ↗ |
| #22,283 | byizmysh/IZ2S-Platform | JavaScript | ★ 74 | Compare ↗ |
| #22,318 | dgesteves/onsystem This Project | TypeScript | ★ 73 | |
| #22,318 | johnl/news-sniffer | Ruby | ★ 73 | Compare ↗ |
| #22,318 | openhood/paypal | Ruby | ★ 73 | Compare ↗ |
| #22,318 | dcbriccetti/talking-puffin | Scala | ★ 73 | Compare ↗ |
| #22,318 | atd/station | Ruby | ★ 73 | Compare ↗ |
| #22,318 | foca/undress | Ruby | ★ 73 | Compare ↗ |
Frequently Asked Questions
What does onsystem do? +
Keeps coding agents on your design system: catches palette colors, native elements and APIs your system lacks, at every edit and pull request, with the fix. Set it up once in your design-system package; every app in your monorepo gets it.
What language is onsystem written in? +
The primary language is TypeScript. Topics include: accessibility, agent-guardrails, ai-agents, claude-code, claude-code-plugin.
Is onsystem actively maintained? +
Yes, the last recorded push was on Oct 28, 2026 with 21 open issues being tracked.
How many stars does onsystem have? +
onsystem has 73 stars and 3 forks on GitHub.
How does onsystem rank among GitHub repositories? +
With 73 stars, dgesteves/onsystem is ranked #22,318 globally across all repositories tracked on GitHubRepo and #2,428 among TypeScript projects.
What license is onsystem distributed under? +
The repository reports a MIT license. Always verify the repository LICENSE file for legal terms.