onWatch vs rule-porter
A side-by-side comparison of two Command-line AI agents — to help you pick the right one.
onWatch
Open-source Go CLI that tracks AI API quota usage across 7 providers (Anthropic, OpenAI Codex, GitHub Copilot, Synthetic, Z.ai, MiniMax, Antigravity). Background daemon with Material Design 3 web dashboard, ~15MB binary, <50MB RAM, zero telemetry.
rule-porter
rule-porter is a command-line tool designed to convert AI IDE rule files between formats used by Cursor (.mdc), CLAUDE.md, AGENTS.md, Copilot, and Windsurf. It supports bidirectional conversion and provides warnings for lossy transformations during the process. The tool is zero-dependency, making it lightweight and easy to integrate into workflows.
| onWatch | rule-porter | |
|---|---|---|
| Category | Command-line | Command-line |
| Open source | True | Yes |
| Self-hostable | True | Yes |
| Skill level | intermediate | Intermediate |
| Pricing | Open Source | Open Source |
onWatch: what it solves
Tracking AI API quota usage across multiple providers
rule-porter: what it solves
It eliminates the manual effort and potential errors involved in translating rule files between different AI development environments, ensuring compatibility across tools.