こんにちは。ダイの大冒険エンジョイ勢のbun913と申します。私はSDET(Software Development Engineer in Test)として、QAチームにいる何でも屋さんとして、私より優秀なみなさんが本質的なことに時間を使えるように日夜改善を考えています。 私は弊QAチームでのMCP活用として以下のような記事を書いておりました。 今回は最近話題の Agent Skills とあらかじめ作っておいたCLIツールを組み合わせて、QAチームが本質的ではない作業にかける時間とトークン消費量を大幅に削減する試みを紹介します。 内容自体はQAチームの取り組みですが、考え方やツールの使い方は他のことに流用できるのではないかと考えています。 先に背景とやったことをざっくり説明 背景: 前回までの取り組み 弊チームでは自動テストに力をいれつつも、手動テストの威力も大事にしています。実際探索
GraphQL is an incredible piece of technology that has captured a lot of mindshare since I first started slinging it in production in 2018. You won’t have to look far back on this (rather inactive) blog to see I have previously championed this technology. After building many a React SPA on top of a hodge podge of untyped JSON REST APIs, I found GraphQL a breath of fresh air. I was truly a GraphQL h
Developers are increasingly relying on AI coding assistants to accelerate our daily workflows. These tools can autocomplete functions, suggest bug fixes, and even generate entire modules or MVPs. Yet, as many of us have learned, the quality of the AI’s output depends largely on the quality of the prompt you provide. In other words, prompt engineering has become an essential skill. A poorly phrased
Couple of weeks ago when I was publishing The Hidden Cost of URL Design I needed to add SQL syntax highlighting. I headed to PrismJS website trying to remember if it should be added as a plugin or what. I was overwhelmed with the amount of options in the download page so I headed back to my code. I checked the file for PrismJS and at the top of the file, I found a comment containing a URL: /* http
Go言語でJSONをYAMLに変換するコマンド json2yaml を作りました！ - プログラムモグモグ
JSONをYAMLに変換するコマンド json2yaml を、Go言語で作ってみました。 他の言語も含めると同じようなコマンドラインツールは無数に作られていますが、 Goのライブラリとして組み込みたかったというのが最初のモチベーションです。 また、JSONをストリーミング的にYAMLに変換できるのかという疑問を以前から抱いていて、ここに答えを得たかったというところもありました。 github.com go install github.com/itchyny/json2yaml/cmd/json2yaml@latest Homebrewでもインストールできます。 brew install itchyny/tap/json2yaml JSONファイルを引数にしてYAMLを出力したり、 $ cat sample.json { "Sample": "JSON" } $ json2yaml sam
Programming is an iterative process. As much as we would like to come up with the perfect solution from the start, it rarely works that way. Good programs often begin as quick prototypes. While many experiments remain prototypes, the best programs can evolve into production code. Whether you’re writing games, CLI tools, or designing library APIs, prototyping helps tremendously in finding the best
written by Ruud van Asseldonk published 11 January 2023 For a data format, yaml is extremely complicated. It aims to be a human-friendly format, but in striving for that it introduces so much complexity, that I would argue it achieves the opposite result. Yaml is full of footguns and its friendliness is deceptive. In this post I want to demonstrate this through an example. This post is a rant, and
Notable changes built-in .env file support Starting from Node.js 20.6.0, Node.js supports .env files for configuring environment variables. Your configuration file should follow the INI file format, with each line containing a key-value pair for an environment variable. To initialize your Node.js application with predefined configurations, use the following CLI command: node --env-file=config.env
Parsing SQL - Strumenta
The code for this tutorial is on GitHub: parsing-sql SQL is a language to handle data in a relational database. If you worked with data you have probably worked with SQL. In this article we will talk about parsing SQL. It is in the same league of HTML: maybe you never learned it formally but you kind of know how to use it. That is great because if you know SQL, you know how to handle data. However
2025-05-06, Version 24.0.0 (Current), @RafaelGSS and @juanarbol We’re excited to announce the release of Node.js 24! This release brings several significant updates, including the upgrade of the V8 JavaScript engine to version 13.6 and npm to version 11. Starting with Node.js 24, support for MSVC has been removed, and ClangCL is now required to compile Node.js on Windows. The AsyncLocalStorage API
TL;DR 最高でしたね。LTができたのと多くの人と話せたのが特に良かったですが、トークやパーティーなど、これぞRubyKaigiという感覚が非常に強くて感動しました。 はじめに この記事はRubyKaigi 2023の感想記事です。基本的にはRubyKaigiについて知っている人を対象としています。基本的な情報は記載しません。 一言でいうと 最高でした！ いや、なんでしょう、RubyKaigiは2016年から基本毎年参加していて（2018年のみ不参加）、全部楽しかったのですが、今年は自分にとって今までで一番楽しかったです。 この記事の構成について この記事は主に3つのパートで構成されています。 まず最初は私が聞いた各トークの感想です。なお、トークのメモは一切取っていない（忘れたというよりは、気力が持たなかった）ため、うろ覚えでの記述になっていることをご承知おきください。 次のパートは私が
以下の記事が面白かったので、簡単にまとめました。 ・Introducing Structured Outputs in the API 1. Structured Outputs昨年のDevDayで、「JSONモード」を導入しました。これは、OpenAIのモデルを使用して信頼性の高いアプリを構築しようとしている開発者にとって便利な構成要素です。「JSONモード」は、有効なJSON出力を生成するためのモデルの信頼性を向上させますが、モデルの応答が特定のスキーマに準拠することを保証するものではありません。本日、APIに「Structured Outputs」を導入します。これは、モデルによって生成された出力が、開発者が提供するJSONスキーマと完全に一致するように設計された新機能です。 複雑なJSONスキーマのフォローの評価では、「Structured Outputs」を備えた新しいモデル「g
今更ですが今年の2月に spaCy 3.0 が公開されました。 3.0 で導入された新機能の中で目玉と言えるのは、やはり Hugging Face Transformers (以下、単にTransformers) のサポートや PyTorch, Tensorflow との連携になるでしょう。今回はその辺りを実際に学習を動かしながら紹介したいと思います。 1. はじめに 今回は今年の2月に公開された spaCy 3.0 の話です。 spaCy は第4回でも紹介しましたが、研究者向けというよりは自然言語処理アプリ開発者向けのオープンソース自然言語処理ライブラリになります。日本語を含めた様々な言語の学習済みモデルが存在しており、 spaCy をインストールして、学習済みモデルをダウンロードするだけで、分かち書き、品詞や依存関係の推定、単語や文の類似度の判定など様々な機能を使用することができます。
Tier 4 Support § Support for these targets is entirely experimental. If this target is provided by LLVM, LLVM may have the target as an experimental target, which means that you need to use Zig-provided binaries for the target to be available, or build LLVM from source with special configure flags. zig targets will display the target if it is available. This target may be considered deprecated by
Blogged Answers: My Experience Modernizing Packages to ESM
Random musings on React, Redux, and more, by Redux maintainer Mark "acemarke" Erikson This is a post in the Blogged Answers series. Details on the painful experiences and hard-earned lessons I've learned migrating the Redux packages to ESM Table of Contents 🔗︎ Introduction Redux Packages Background Packages and Configurations Issue History Early Attempts Migrating to Vitest Initial Alpha Testing
Shai Hulud Strikes Again (v2)Another wave of Shai-Hulud campaign has hit npm with more than 500 packages and 700+ versions affected. Update: November 26, 2025 PostHog has published a detailed post mortem describing how one of its GitHub Actions workflows was abused as an initial access vector for Shai Hulud v2. An attacker briefly opened a pull request that modified a script executed via pull_requ
maml{ project: "MAML" tags: [ "minimal" "readable" ] # A simple nested object spec: { version: 1 author: "Anton Medvedev" } # Array of objects examples: [ { name: "JSON", born: 2001 } { name: "MAML", born: 2025 } ] notes: """ This is a multiline raw strings. Keeps formatting as-is. """ } Rationale JSON is the most popular data-interchange format. But it isn't a very good configuration language. M
Monitoring is a Pain
And we're all doing it wrong (including me) I have a confession. Despite having been hired multiple times in part due to my experience with monitoring platforms, I have come to hate monitoring. Monitoring and observability tools commit the cardinal sin of tricking people into thinking this is an easy problem. It is very simple to monitor a small application or service. Almost none of those approac
--- name: skill-creator description: Guide for creating effective skills. This skill should be used when users want to create a new skill (or update an existing skill) that extends Claude's capabilities with specialized knowledge, workflows, or tool integrations. license: Complete terms in LICENSE.txt --- # Skill Creator This skill provides guidance for creating effective skills. ## About Skills S
Try Mastering Emacs for free! Are you struggling with the basics? Have you mastered movement and editing yet? When you have read Mastering Emacs you will understand Emacs. It’s that time again: there’s a new major version of Emacs and, with it, a treasure trove of new features and changes. Notable features include the formal inclusion of native compilation, a technique that will greatly speed up y
A Deep Dive into eBPF: Writing an Efficient DNS Monitoring.
eBPF / XDP is an in-kernel virtual machine, provides a high-level library, instruction set and an execution environment inside the Linux kernel. It’s used in many Linux kernel subsystems, most prominently networking, tracing, debugging and security. Including to modify the processing of packets in the kernel and also allows the programming of network devices such as SmartNICs. Use cases in eBPF im
週刊Railsウォッチ: Rails 7がRuby 3.1のClass#descendantsに対応、GitHub Issue風ファイルアップローダほか（20211115前編）｜TechRacho by BPS株式会社
こんにちは、hachi8833です。つっつきの後でこの番組見ました↓。 IIJでは何年かに一度「データセンターの中を撮影したい」と相談を受けています。ただ、今回の番組のように「ケーブルの配線美を撮影したい」というお話は初めてでした。 IIJ&ネットチャート撮影協力 NHK BS1「ケーブルアート～あなたの知らない美の世界～」 本日 22:40～22:50https://t.co/q1eByHiVuP pic.twitter.com/9ViXdmTTPs — 堂前@IIJ (@IIJ_doumae) November 11, 2021 週刊Railsウォッチについて 各記事冒頭には🔗でパーマリンクを置いてあります: 社内やTwitterでの議論などにどうぞ 「つっつきボイス」はRailsウォッチ公開前ドラフトを（鍋のように）社内有志でつっついたときの会話の再構成です👄 お気づきの点があり
An AI-native software engineer is one who deeply integrates AI into their daily workflow, treating it as a partner to amplify their abilities. This requires a fundamental mindset shift. Instead of thinking “AI might replace me” an AI-native engineer asks for every task: “Could AI help me do this faster, better, or differently?”. The mindset is optimistic and proactive - you see AI as a multiplier
Shai Hulud 2.0 Strikes Again: Malware Supply-Chain Attack Hits Zapier & ENS Domains
Shai Hulud Launches Second Supply-Chain Attack: Zapier, ENS, AsyncAPI, PostHog, Postman Compromised It's another Monday morning, sitting down at the computer. And I see a stack of alerts from the last hour of packages showing signs of malware in our triage queue. Having not yet finished my first cup of coffee, I see Shai Hulud indicators. Yikes, surely that's a false positive? Nope, welcome to Mon
JavaScriptのシャローコピーとディープコピー詳細解説：実践的な使い方と注意点 - iimon TECH BLOG
はじめに シャローコピーとディープコピーの基礎 オブジェクトの参照の仕組み シャローコピーとディープコピーの違い シャローコピーの3つの方法 それぞれの特徴 Object.assign()が配列に適さない理由 疎配列（sparse array）の扱い 配列メソッドの継承問題 使い分けの指針 ディープコピー ディープコピーの4つの方法 使い分けの指針 注意点とベストプラクティス シャローコピーで十分な場合 ディープコピーが必要な場合 まとめ おわりに 参考記事 はじめに こんにちは、株式会社iimonでフロントエンドエンジニアをしているnkmです！ 本記事はiimonアドベントカレンダー2日目の記事となります。 今回は、以下について実践的な例を交えながら解説していきます！ ・シャローコピーとディープコピーの基礎 ・シャローコピーとディープコピーの違い ・シャローコピーの３つの方法、使い分け
GitHub - langroid/langroid: Harness LLMs with Multi-Agent Programming
This is just a teaser; there's much more, like function-calling/tools, Multi-Agent Collaboration, Structured Information Extraction, DocChatAgent (RAG), SQLChatAgent, non-OpenAI local/remote LLMs, etc. Scroll down or see docs for more. See the Langroid Quick-Start Colab that builds up to a 2-agent information-extraction example using the OpenAI ChatCompletion API. See also this version that uses t
Introduction: These Aren’t the JSONs You’re Looking For JSON (JavaScript Object Notation) was designed as a simple, lightweight, and human-readable data interchange format, often positioned as a more accessible alternative to XML. It has become the de facto standard for web APIs and system integration. However, while the specification itself is straightforward, different programming languages and
Photo by ELLA DON on UnsplashHave you been working on an OpenAI project that uses the Chat GPT API? Do you want to stream the response to your application in real-time — as it's being generated? In this article, I will walk you through the process of using OpenAI’s API to receive SSE to your server and forwarding those events to your client using SSE. The examples will be written in JavaScript, Py
From XML to JSON to CBOR - The CBOR, dCBOR, and Gordian Envelope Book
Press ← or → to navigate between chapters Press S or / to search in the book Press ? to show this help Press Esc to hide this help From XML to JSON to CBOR A Lingua Franca for Data? In modern computing, data exchange is foundational to everything from web browsing to microservices and IoT devices. The ability for different systems to represent, share, and interpret structured information drives ou
Here is a list of common JavaScript interview questions with detailed answers to help you prepare for the interview as a JavaScript developer. JavaScript continues to be a cornerstone of web development, powering dynamic and interactive experiences across the web. As the language evolves, so does the complexity and scope of interview questions for JavaScript developers. Whether you’re a fresher de
Update 1.88.1: The update addresses these issues. Downloads: Windows: x64 Arm64 | Mac: Universal Intel silicon | Linux: deb rpm tarball Arm snap Welcome to the March 2024 release of Visual Studio Code. There are many updates in this version that we hope you'll like, some of the key highlights include: Apply custom editor labels - Distinguish between editors with same file names. Locked scrolling -
Lately I’ve gotten heavily back into making stuff, and it’s mostly because of LLMs. I thought that I liked programming, but it turned out that what I like was making things, and programming was just one way to do that. Since LLMs have become good at programming, I’ve been using them to make stuff nonstop, and it’s very exciting that we’re at the beginning of yet another entirely unexplored frontie
I've been using Nim for about 1-2 years now, and I believe the language is undervalued. It's not perfect, of course, but it's pleasant to write and read. My personal website uses Nim. After reading a recent article on Nim ("Why Nim") and the associated HN comments, it's clear that comments and some information about Nim are misleading and outdated. Since Nim 2, a tracing Garbage Collector is not t
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MCPでやる必要のない業務をSkillsに置き換えてトークンと時間の消費を爆減してみた
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