Claude Codeの Agent Skills は設定したほうがいい - じゃあ、おうちで学べる
Claude Codeを使い始めて、様々な発信をしてきました。今回は「Agent Skills」について。これも設定しておくと、Claude Codeがグッと使いやすくなる機能です。 Claude Code の settings.json は設定した方がいい - じゃあ、おうちで学べる Claude Code の CLAUDE.mdは設定した方がいい - じゃあ、おうちで学べる Claude Code の .claude/commands/**.md は設定した方がいい - じゃあ、おうちで学べる Claude CodeのHooksは設定したほうがいい - じゃあ、おうちで学べる Claude CodeのSubagentsは設定したほうがいい - じゃあ、おうちで学べる はじめに 「このプロジェクトではpython-pptxを使ってスライドを作って」「SQLは必ずこのフォーマットで書いて」
無料プロキシツール「mitmproxy」を使ってみよう - セットアップ方法とセキュリティエンジニアおすすめの設定 - GMO Flatt Security Blog
※本記事は筆者styprが英語で執筆した記事を株式会社Flatt Security社内で日本語に翻訳したものになります。 はじめに こんにちは、Flatt Securityのstypr(@stereotype32)です。今回はセキュリティ診断などで使われるローカルプロキシツールについて紹介します。 ちなみに、開発者の皆さんが脆弱性の検証を行うにはこれらのツールだけでなくセキュリティ知識が必要ですが、そのためにはFlatt Securityが提供する「KENRO」がおすすめです。Web アプリケーションの代表的な脆弱性10個に関して、脆弱なソースコードを修正するなどのハンズオンを通して学ぶことができます。 ぜひバナーより無料・無期限のトライアルをご利用ください。 さて、セキュリティエンジニアの多くは、WebやモバイルアプリケーションのHTTP/HTTPSトラフィックを確認するするためにBur
Skills are custom instructions that extend Claude's capabilities for specific tasks or domains. When you create a skill via a SKILL.md file, you're teaching Claude how to handle specific scenarios more effectively. The power of skills lies in their ability to encode institutional knowledge, standardize outputs, and handle complex multi-step workflows that would otherwise require repeated explanati
Security best practices when using ALB authentication | Amazon Web Services
Networking & Content Delivery Security best practices when using ALB authentication At AWS, security is the top priority, and we are committed to providing you with the necessary guidance to fortify the security posture of your environment. In 2018, we introduced built-in authentication support for Application Load Balancers (ALBs), enabling secure user authentication as they access applications.
Today, we are excited to announce the launch of .NET 10, the most productive, modern, secure, intelligent, and performant release of .NET yet. It’s the result of another year of effort from thousands of developers around the world. This release includes thousands of performance, security, and functional improvements across the entire .NET stack-from languages and developer tools to workloads-enabl
はじめに この記事では Claude Code を利用してアプリを開発する過程を共有します。 TL;DR GitHub の任意リポジトリを入力すると、スターを付けたユーザの所在地を世界地図にプロットする Web アプリを作りました。 デモ : https://geostarmap.pages.dev/ リポジトリ：https://github.com/yottahmd/geostarmap なぜ作ったか OSS を開発していると「どの国の開発者に届いているのか」が気になってきます。しかし既存のソフトウェアは、Pythonでローカルで動かす必要があったり、メンテされておらず動かないなどの問題がありました。 そこで「Claude Code に作らせたら、一瞬でできるのでは？」という実験を兼ねて、自分で最小構成のアプリを構築することにしました。 短時間で作った実験アプリなので品質は重視しておりま
31st December 2024 A lot has happened in the world of Large Language Models over the course of 2024. Here’s a review of things we figured out about the field in the past twelve months, plus my attempt at identifying key themes and pivotal moments. This is a sequel to my review of 2023. In this article: The GPT-4 barrier was comprehensively broken Some of those GPT-4 models run on my laptop LLM pri
April 25, 2022 Four Eras of JavaScript Frameworks April 25, 2022 I started coding primarily in JavaScript back in 2012. I had built a PHP app for a local business from the ground up, a basic CMS and website, and they decided that they wanted to rewrite it and add a bunch of features. The manager of the project wanted me to use .NET, partially because it’s what he knew, but also because he wanted i
GitHub - anderspitman/awesome-tunneling: List of ngrok, Cloudflare Tunnel, Tailscale, and ZeroTier alternatives and other tunneling software and services. Focus on self-hosting.
I started this list because I'm looking for a simple tool/service that does the following: Allows me to register a domain name and automatically points the records at the server running the tunnels. Automatically sets up and manages HTTPS certificates (apex and subdomains) for the domain. Provides a client tool that tunnels HTTP/TCP connections through the server without requiring root on the clie
Update 1.67.1: The update addresses this security issue. Update 1.67.2: The update addresses these issues. Downloads: Windows: x64 Arm64 | Mac: Universal Intel silicon | Linux: deb rpm tarball Arm snap Welcome to the April 2022 release of Visual Studio Code. There are many updates in this version that we hope you'll like, some of the key highlights include: Explorer file nesting - Nest generated f
The /llms.txt file – llms-txt
A proposal to standardise on using an /llms.txt file to provide information to help LLMs use a website at inference time. Background Large language models increasingly rely on website information, but face a critical limitation: context windows are too small to handle most websites in their entirety. Converting complex HTML pages with navigation, ads, and JavaScript into LLM-friendly plain text is
How to Bypass Cloudflare in 2023: The 8 Best Methods - ZenRows
About 1/5 of websites you need to scrape use Cloudflare, a hardcore anti-bot protection system that gets you blocked easily. So what can you do? 😥 We spent a million dollars figuring out how to bypass Cloudflare in 2023 so that you don't have to and wrote the most complete guide (you're reading it!). These are some of the techniques you'll get home today: Method 1: Get around Cloudflare CDN. Meth
Over the course of my Spring 2020 semester at Harvey Mudd College, I developed a self-hosting compiler entirely from scratch. This article walks through many interesting parts of the project. It’s laid out so you can just read from beginning to end, but if you’re more interested in a particular topic, feel free to jump there. Or, take a look at the project on GitHub. Table of contents What the pro
MAI-Thinking-1: Building a Hill-Climbing Machine The Microsoft AI Team 1 Abstract Progress in AI is driven not by a single model, but by the ability to continually improve upon the current state of models. Achieving this requires treating model development as a system-level optimization problem, for which the solution is building a hill-climbing machine for rapid improvement. Our process includes
Idempotency-Key Headerの現状・仕様・実装の理解を助けるリソースまとめ - valid,invalid
Idempotency-Key Header に関する調査と実装を半年ぐらい前に行ったので、そのとき参考にしたリソースと 2021 年 9 月時点で得られる最新情報をメモしておく。 前提: Idempotency-Key Header とは HTTP リクエストのうち冪等ではないとされるリクエスト*1を冪等にし、安全なリトライを可能にするための仕組みの 1 つ。 Jayadeba Jena, Sanjay Dalal, Erik Wilde 氏らによって 2021 年 11 月に仕様が提案された。現在は IETF のもと、インターネット標準化過程（Standard Track）にあり、IETF Meeting や GitHub issues にて議論が行われている。real world ではすでに多くの企業で類似する実装が行われている。 現状と今後 GitHub issues を見る限り論
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
Update: I originally published this post few months ago, and it only covered Turbo Drive and Turbo Frames then, with a static site. I've since had a bunch of conversations with people working with other tech stacks (Rust, PHP, and Go) wanting to integrate Hotwire into their front-ends, and everyone kept asking about Turbo Streams, since it needs a back-end server. So I've updated the post to build
Common Crawlから作る大規模日本語コーパスとその前処理（Mixtral 8x7Bを語彙拡張継続事前学習 Part2） - ABEJA Tech Blog
ABEJAでデータサイエンティストをしている服部です。 ABEJAは国立研究開発法人新エネルギー・産業技術総合開発機構（以下「NEDO」）が公募した「ポスト5G情報通信システム基盤強化研究開発事業／ポスト5G情報通信システムの開発」に当社提案の「LLMの社会実装に向けた特化型モデルの元となる汎化的LLM」に採択されたことを受け、LLMの事前学習を実施しました。 その中でモデルの学習だけでなく、学習に欠かせない大規模日本語言語コーパスを作りました。データセットのサイズとしては、語彙拡張前のMixtral Tokenizerで約400Bほどのものです。 特にその中で大部分を占めるCommon Crawlをベースとしてデータセットを作った過程について解説します。 データセットの概要 Common Crawlについて warcとwet データセット作成方針 前処理の流れ 1. 日本語の簡易判定、w
Thought for 6.8 seconds Below is a very small, self‑contained Python script that performs an HTTP GET request to http://localhost:3000 and prints whatever the server replies. It uses the popular third‑party library requests (recommended because of its ease of use), but I also included a short alternative that works with the Python standard library (urllib.request) in case you don’t want to install
Open sourcing h3i: a command line tool and library for low-level HTTP/3 testing and debugging
Open sourcing h3i: a command line tool and library for low-level HTTP/3 testing and debugging2024-12-30 Have you ever built a piece of IKEA furniture, or put together a LEGO set, by following the instructions closely and only at the end realized at some point you didn't quite follow them correctly? The final result might be close to what was intended, but there's a nagging thought that maybe, just
--- 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
Apache httpd is a modular web server that powers 31% of all websites you access every day. One of its most compelling features is the ability to extend it with new modules. Developers can choose among different modules to add or remove features like CGI, TLS, PHP, and many others. Today, we announce a new Apache module to run WebAssembly modules: mod_wasm. This module opens a new set of possibilit
Microsoft Graph API + PythonでAzure ADのサインインログを取得してみた | DevelopersIO
どうも、ベルリンオフィスの小西です。 最近Mirosoft Graph APIを触ることがありました。 日本語の情報があまりなかったので、これをいい機会に認証方法やデータの取得方法をまとめてみたいと思います。 Microsoft Graphとは Microsoftの中の人がQiitaで記事を書いてくれているので引用します。 Microsoft のサービスである Office 365 や Azure AD など、様々なサービスのデータをグラフ形式で扱えるエンドポイントです。グラフ形式でデータを扱えるので、「自分の予定」や「自分の上司」などデータを関連から取得できます。 単一のREST APIエンドポイントでMicrosoftの各サービスのデータを取得・処理でき、認証も一括で管理できるため非常に使いやすいと感じました。 なお、これに伴い Microsoft Azure AD Graph や O
Browser Rendering API GA, rolling out Cloudflare Snippets, SWR, and bringing Workers for Platforms to all users
April 5, 2024Browser Rendering API GA, rolling out Cloudflare Snippets, SWR, and bringing Workers for Platforms to all users Browser Rendering API is now available to all paid Workers customers with improved session managementIn May 2023, we announced the open beta program for the Browser Rendering API. Browser Rendering allows developers to programmatically control and interact with a headless br
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
Ever wanted more different ways to understand what’s going on in a program? Here I catalogue a huge variety of tracing methods you can use for varying types of problems. Tracing has been such a long-standing interest (and job) of mine that some of these will novel and interesting to anyone who reads this. I’ll guarantee it by including 2 novel tracing tools I’ve made and haven’t shared before (loo
Downloads: Windows: x64 Arm64 | Mac: Universal Intel silicon | Linux: deb rpm tarball Arm snap Update 1.72.1: The update addresses these security issues. Update 1.72.2: The update addresses these issues. Welcome to the September 2022 release of Visual Studio Code. There are many updates in this version that we hope you'll like, some of the key highlights include: Tool bar customization - Hide/show
'Jew' or 'rabbi'"},"role":{"kind":"string","value":"assistant"},"lang":{"kind":"string","value":"en"},"review_count":{"kind":"number","value":3,"string":"3"},"review_result":{"kind":"bool","value":true,"string":"true"},"deleted":{"kind":"bool","value":false,"string":"false"},"rank":{"kind":"number","value":1,"string":"1"},"synthetic":{"kind":"bool","value":false,"string":"false"},"model_name":{"ki
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
Server-Sent Events: the alternative to WebSockets you should be using
When developing real-time web applications, WebSockets might be the first thing that come to your mind. However, Server Sent Events (SSE) are a simpler alternative that is often superior. Contents Prologue WebSockets? What is wrong with WebSockets Compression Multiplexing Issues with proxies Cross-Site WebSocket Hijacking Server-Sent Events Let’s write some code The Reverse-Proxy The Frontend The
Noble Numbat Release Notes Table of Contents Introduction New features in 24.04 LTS Known Issues Official flavours More information Introduction These release notes for Ubuntu 24.04 LTS (Noble Numbat) provide an overview of the release and document the known issues with Ubuntu and its flavours. For details of the changes applied since 24.04, please see the 24.04.2 change summary. Support lifespan
redbean 2.0 release notes
redbean is a webserver in a zip executable that runs on six operating systems. The basic idea is if you want to build a web app that runs anywhere, then you download the redbean.com file, put your .html and .lua files inside it using the zip command, and then you've got a hermetic app you can deploy and share. I introduced this web server about a year ago on Hacker News, where it became the third
The Pitchfork Story
A bit more than two years ago, as part of my work in Shopify’s Ruby and Rails Infrastructure team, I released a new Ruby HTTP server called Pitchfork. It has a bit of an unusual design and makes hard tradeoffs, so I’d like to explain the thought process behind these decisions and how I see the future of that project. Unicorn’s Design Is Fine Ever since I joined Shopify over 11 years ago, the main
10th December 2025 I’ve started using the term HTML tools to refer to HTML applications that I’ve been building which combine HTML, JavaScript, and CSS in a single file and use them to provide useful functionality. I have built over 150 of these in the past two years, almost all of them written by LLMs. This article presents a collection of useful patterns I’ve discovered along the way. First, som
New – Use Amazon S3 Object Lambda with Amazon CloudFront to Tailor Content for End Users | Amazon Web Services
AWS News Blog New – Use Amazon S3 Object Lambda with Amazon CloudFront to Tailor Content for End Users With S3 Object Lambda, you can use your own code to process data retrieved from Amazon S3 as it is returned to an application. Over time, we added new capabilities to S3 Object Lambda, like the ability to add your own code to S3 HEAD and LIST API requests, in addition to the support for S3 GET re
Web scraping is the process of downloading data from a public website. For example, you could scrape ESPN for stats of baseball players and build a model to predict a team’s odds of winning based on their players stats and win rates. Below are a few use-cases for web scraping. Monitoring the prices of your competitors for price matching (competitive pricing). Collecting statistics from various web
Just use cURL
What the fuck happened to making HTTP requests? You used to just type curl example.com and boom, you got your goddamn response. Now everyone's downloading 500MB Electron monstrosities that take 3 minutes to boot up just to send a fucking GET request. It's already on your machine, dipshit You know what's better than downloading Postman? Not downloading Postman. cURL is already installed on your mac
February 2023 Go to: Old to new | To-dos | Weddings | Config | Statics | Cron | Load testing | Conclusion I recently switched two side projects from being hosted on an Amazon EC2 instance to using Fly.io. It was a really good experience: Fly.io just worked. It allowed me to delete about 500 lines of Ansible scripts and config files, and saved me $9 a month. For the larger of the two projects, I al
AWS Compute Blog Serverless ICYMI Q1 2023 February 12, 2024: Amazon Kinesis Data Firehose has been renamed to Amazon Data Firehose. Read the AWS What’s New post to learn more. Welcome to the 21st edition of the AWS Serverless ICYMI (in case you missed it) quarterly recap. Every quarter, we share all the most recent product launches, feature enhancements, blog posts, webinars, live streams, and oth
Pandoc - twenty-years-of-pandoc
Twenty Years of Pandoc On August 3, 2006, I uploaded the first version of pandoc to my website, releasing it under the free GPL license. Pandoc 0.1 consisted of about 3000 lines of Haskell code, with no dependencies aside from GHC’s standard library. It could convert Markdown, reStructuredText, HTML, and LaTeX documents into any of these formats, plus RTF or S5. I had no idea at the time that this
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How to create Skills for Claude: steps and examples | Claude
Announcing .NET 10 - .NET Blog
Claude Code で GitHub スターの地理分布を可視化するオープンソースソフトウェアをつくった
Things we learned about LLMs in 2024
pzuraq | Four Eras of JavaScript Frameworks
April 2022 (version 1.67)
Kalyn: a self-hosting compiler for x86-64
MAI-Thinking-1: Building a Hill-Climbing Machine
0.10.0 Release Notes ⚡ The Zig Programming Language
You Don't Need Rails to Start Using Hotwire
ローカル LLM でコード補完エディタを作った話 - Qiita
prompts.chat - AI Prompts Community
mod_wasm: run WebAssembly with Apache
What's New in Emacs 28.1?
All my favorite tracing tools: eBPF, QEMU, Perfetto, new ones I built and more - Tristan Hume
September 2022 (version 1.72)
OpenAssistant/oasst1 · Datasets at Hugging Face
Ubuntu 24.04 LTS (Noble Numbat) Release Notes
Useful patterns for building HTML tools
How to Crawl the Web with Scrapy
From Go on EC2 to Fly.io: +fun, −$9/mo
Serverless ICYMI Q1 2023 | Amazon Web Services