npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2026 – Pkg Stats / Ryan Hefner

pi-loop-guard

v1.0.4

Published

Pi coding agent extension that detects repeating tool-call loops and breaks them before they waste tokens.

Readme

pi-loop-guard

npm

中文 | English

检测 pi 的 LLM 是否陷入重复工具调用循环,并在浪费 token 之前强制中断。

快速安装

pi install npm:pi-loop-guard

它能做什么

pi-loop-guard 监控每一轮对话,检测两种循环模式:

| 模式 | 示例 | |------|------| | 连续重复 | AAAA — 连续多轮调用相同工具 + 相同参数 | | 交替重复 | ABABAB — 两个调用来回交替,永不停止 |

检测到循环后,pi-loop-guard 会向模型注入一条引导消息,要求它尝试不同方法,或停止并汇报结果。

配置

在项目根目录创建 .pi/loop-guard.json(可选):

{
  "maxRepeats": 5,
  "windowSize": 5,
  "enabled": true
}

| 选项 | 默认值 | 说明 | |------|--------|------| | maxRepeats | 5 | 连续多少轮相同调用后触发 | | windowSize | 5 | 回溯检查最近多少轮 | | enabled | true | 设为 false 可临时禁用 |

为什么模型自己不会停?

即使提示写得再好,模型在工具调用场景下也可能陷入循环 —— 尤其当它对结果困惑时,可能会连续读取同一个文件十几次。pi-loop-guard 是一个低成本的安全网:没有循环时不产生任何开销,检测到循环时立刻止损。

工作原理

  1. 每次 turn_end 时,提取助手消息中的工具调用
  2. 与最近 windowSize 轮的历史记录比较
  3. 如果发现 maxRepeats 轮相同的调用(连续或交替),注入引导消息并重置历史
  4. session_shutdown 时清空历史

开源协议

MIT License

Copyright (c) 2026 GDWhisper