YAPC::Fukuoka 2025で「読む技術・書く技術・伝える技術 - 15年続けて分かった持続可能なオープンソース開発」というタイトルで発表をしました。スライドは次のページで公開しています。スライド: 読む技術・書く技術・伝える技術 - 15年続けて分かった持続可能なオープンソース開発Proposal: https://fortee.jp/yapc-fukuoka-2025/proposal/64dbeabc-a630-4564-97ff-812106e7be81発表内容この発表では、15年間のオープンソース活動から学んだ持続可能な開発のための3つのプロジェクトについて話しています。読む技術 - JSer.infoJSer.infoは2011年から続けている週刊のJavaScript情報ブログで、これまでに750記事以上を公開しています。「整理されたデータである『情報』を伝えること」をテーマに、14年間続けてきた情報収集システムやワークフローについて紹介しています。関連記事:JSer.info 10周年: JavaScript情報の集め方、書き方、まとめ方 - JSer.info

Recent coverage mislabels the latest TEA protocol spam as a worm. Here’s what’s actually happening.

Discover practical tips, examples, and best practices for writing effective instructions files. Whether you’re new or experienced, you’ll find something to level up your code reviews.The post Unlocking the full power of Copilot code review: Master your instructions files appeared first on The GitHub Blog.

Probably worth keeping an eye on Vite+ (still in “early access”). They say it’s “everything you’ve been duct-taping together” which feels actually kinda fair when you consider this has “dev, build, test, lint, format, monorepo caching & more in a single dependency.” So even if you’re using Vite anyway, perhaps you’d get to ditch Jest […]

The extremely new framework that caught lots of attention will continue as a personal project.Quiet UI Came and Went, Quiet as a Mouse originally published on CSS-Tricks, which is part of the DigitalOcean family. You should get the newsletter.

Debugging controllers can be a real pain. Here’s a deep dive into how CSS helps clean it up and how to build a reusable visual debugger for your own projects.

public.monsterThis is fantastic. Free hosting for people that want a place on the internet that is their own as a throwback to the 90s.Little Character fontA free and open source font that has an incredible back-story. I saw Astrid (the creator) talk about it at beyond tellerrand last week and I'm still thinking about it.HandyA handy, free, open source speech-to-text tool designed to bring accessibility to as many people as possible.Stonking newsThis is cool: news ranked by engagement on Bluesky

PyPI adds Trusted Publishing support for GitLab Self-Managed as adoption reaches 25% of uploads

こんにちは。2025年の9月に中途で入社しましたフロントエンドエンジニアの白濱（@shiraha_maru）です。社内デザインシステムのMCP化、Figma MCPを活用して入社1ヶ月目からスムーズに開発を進められる体制 […]

Bring Val Town to your favorite LLM

At 1Password, we know that a culture of belonging is essential to achieving our company’s goals. Since launching our first Employee Resource Groups (ERGs) in 2021 and expanding to Employee Community Groups (ECGs) in 2023, these communities have become so much more than spaces for connection – they’re shaping how we lead, grow, and perform together. Today, our ERGs and ECGs collectively represent more than 1,300 Slack channel members, reflecting strong engagement across communities at 1Password.O

HighlightsThis version of ESLint is not ready for production use and is provided to gather feedback from the community before releasing the final version. Please let us know if you having any problems or feedback by creating issues on our GitHub repo.Most of the highlights of this release are breaking changes, and are discussed further in the migration guide. There are summaries of the significant changes below. (Less significant changes are included in the migration guide.)This prerelease versi

Mix client and server code seamlessly with React Server Components (RSC), now available outside of the Next.js ecosystem.

A practical guide to choosing the right machine authentication model for your SaaS product.

I saw Tony Conway & Jeremy Wagner’s post on web.dev, Use Baseline with Browserslist, and I had a little play with it myself (saved live stream). Allow me to write down what I know and what I learned. So here’s Browserslist. Browserslist is the developer community at it’s best. There are a bunch of tools […]

In October, we experienced four incidents that resulted in degraded performance across GitHub services. The post GitHub Availability Report: October 2025 appeared first on The GitHub Blog.

An interview with the leader of GitHub Next, Idan Gazit, on TypeScript, Python, and what comes next. The post TypeScript, Python, and the AI feedback loop changing software development appeared first on The GitHub Blog.

Find out how deeply integrated AI writing features deliver superior business value compared to third-party tools.

Being able to use the range syntax with container style queries — which we can do starting with Chrome 142 — means that we can compare literal numeric values as well as numeric values tokenized by custom properties or the attr() function.The Range Syntax Has Come to Container Style Queries and if() originally published on CSS-Tricks, which is part of the DigitalOcean family. You should get the newsletter.

You can now access OpenAI's latest models, GPT-5.1 Instant and GPT-5.1 Thinking, using Vercel's with no other provider accounts required.AI GatewayTo use these models with the , set the model to or :AI SDKopenai/gpt-5.1-instantopenai/gpt-5.1-thinkingAI Gateway provides a unified API for calling models, tracking usage and cost, and configuring retries, failover, and performance optimizations for higher-than-provider uptime. It includes built-in , , and intelligent with automatic retries.observabi

You can now access OpenAI's latest Codex models, GPT-5.1 Codex and GPT-5.1 Codex mini with Vercel's and no other provider accounts required. These Codex models are optimized for long-running, agentic coding tasks and are able to maintain context and reasoning over longer sessions without degradation.AI GatewayTo use these models with the , set the model to or :AI SDKopenai/gpt-5.1-codexopenai/gpt-5.1-codex-miniAI Gateway provides a unified API for calling models, tracking usage and cost, and con

Vercel now supports , allowing up to one million static URL redirects per project.bulk redirectsThis feature adds import options for formats like CSV and JSON, so teams can more easily manage large-scale migrations, fix broken links, handle expired pages, and more.To use bulk redirects, set the field in your to a file or folder containing your redirects. These will be automatically imported at build time.bulkRedirectsPathvercel.jsonThis feature is available for Pro and Enterprise customers, and

A recap of the improvements, new features, and upcoming changes in AdonisJS v7 over the last month — from starter kit updates to type-safe Inertia integration and multi-limiter support.

FYII’m the co-chair of the W3C WebDX Community Group, which maintains the data and the definition that powers Baseline. Today, I want to take a step back and talk about what Baseline is starting to mean to web developers, what it is, and what it isn’t.Baseline has become hard to miss these days. There are banners at the top of most MDN reference pages and on caniuse.com. It also shows up in various coding editors and developer tools as tooltips, and people have started to mention it in blogs, so

When their values don't change throughout the animation, CSS width / height animations can run on the Compositor, instead of being forced to run on the Main Thread.

How we built the Nuxt MCP server to enable AI assistants to access our documentation through structured data and composable tools.

There are many existing web features and technologies in the wild that you may never touch directly in your day-to-day work. Perhaps you’re fairly new to web development and are simply unaware of them because you’re steeped in the abstraction of a specific framework that doesn’t require you to know it deeply, or even at all. Bryan Rasmussen looks specifically at XPath and demonstrates how it can be used alongside CSS to query elements.

こんにちは、フロントエンドエンジニアのやなぎ（@apple_yagi）です。 先日 PR TIMES のフロントエンド環境に typescript-go を導入し、 tsgo（ typescript-go の実行コマンド […]

Poorly managed credentials are among the most stubborn problems for security and IT teams, and authentication is one of the areas where the Access-Trust Gap is widest. But even as credential-based attacks remain a major threat to security, there are positive signs that companies are moving toward a passwordless future.This blog is part three in our series analyzing the 1Password Annual Report 2025: The Access-Trust Gap. To read part one, which addresses AI governance, click here.To read part two

The best leaders I've worked with were introverts. They listened more than they talked and built stronger teams because of it.

こんにちは、「カミナシ レポート」の開発に携わっている furuya です。先日は Observability Conference Tokyo 2025 が開催され、盛況だったようですね。カミナシメンバーも登壇・参加しました！発表資料はこちらです。 speakerdeck.com この記事では、先日登壇したID管理・認証認可チームとは別で、「カミナシ レポート」の開発チームにおいてもここ数ヶ月間オブザーバビリティと向き合っていた、というお話ができればと思います。 課題 オブザーバビリティとはなんぞや？というところをそろそろちゃんと理解したいなと思い、書籍「オブザーバビリティ・エンジニアリング…

Safari Technology Preview Release 232 is now available for download for macOS Tahoe and macOS Sequoia.

A malicious Chrome extension posing as an Ethereum wallet steals seed phrases by encoding them into Sui transactions, enabling full wallet takeover.

What is the difference between Vitest Browser Mode and Playwright? And when to use each in your tests?

A breakdown of how Copilot coding agent has contributed to a better, more powerful GitHub.The post How Copilot helps build the GitHub platform appeared first on The GitHub Blog.

記事は ics.media へアクセスしてご覧ください。

Remote bindings allow you to connect your local Worker code to deployed Cloudflare resources like R2 and D1. Come along on the technical journey of how we built this feature to create a seamless local development experience.

Learn how PLAID designed a centralized AI foundation with Mastra in a microservices architecture—covering tools, memory, storage, streaming, and frontend integration.

is now available as a on the Vercel Marketplace, bringing real-time error monitoring and code-first observability directly into your Vercel workflow.Rollbarnative integrationWith Rollbar, developers can automatically detect, track, debug, and resolve faster across deployments, connecting every issue back to the exact release and commit that introduced it. This helps teams move quickly while staying confident in production.In just a few clicks, you can:Install Rollbar from the .Vercel Marketplace

Reimagine the date pickerPikaday is back baby!Why do browsers throttle JavaScript timers?You might not initially think it, but this is a really fascinating read.Your URL is your stateThe URL is so overpowered and so often under-utilised. This article does a great job of explaining how much power you really have.It makes me think of Cassidy's PocketCal.Leveraging a web component for comparing iOS and macOS iconsYet another great example of web components being incredibly handy.Programming princip

エムスリーエンジニアリンググループ、データ基盤チームの石塚です。 この記事はデータ基盤チーム & Unit9（エビデンス創出プロダクトチーム） ブログリレー5日目の記事です。前回は三浦さんの 「SQL課題：月の集合を連続した期間の集合にまとめてください」でした。 エムスリーが提供するサービスの中には、今も一部でオンプレミス環境のOracleを活用しているシステムがあります。私たちは、これらのシステムについてもコスト効率やメンテナンス性をさらに向上させるため、Oracleへの依存を段階的に減らしていくプロジェクトを進めています。 このプロジェクトを推進する上で、「そもそも、どのシステムがどれくら…

こんにちは。Webエンジニアをしているotariidaeです。 テストは速ければ速いほど良いものです。善は急げということでさっそく速くしていきましょう。 なにを速くするか 今回速くしていくのは STORES を利用いただいている事業者向け管理画面のバックエンドのテストです。2025年1月から本格的に開発され始めたアプリケーションなので、まだまだ最適化の余地がたっぷり残っていそうですね。Ruby on Rails製で、テストフレームワークはRSpecを使っています。 どうやって速くするか RSpecを速くするためにまずやることといえば、そう、プロファイリングですね。 TestProfのサンプリン…

こんにちは、コーポレートチームの宮川です。今回はGoogle WorkSpaceの管理コストの最適化を目的として、題目のタスクを行いました。 概要 今回、当社で管理していた古くから運用されていたGoogle Worksp […]

はじめに こんにちは！初めまして！ 東京工科大学 学部2年の 広瀬エイトル（@Heitor_Hiro ...

In Episode 4 of Securing the Win, Oracle Red Bull Racing CIO Matt Cadieux joins host Calum Nicholas at MK7 in Milton Keynes to answer a crucial question: how do you make the secure path the fastest path?For Cadieux’s team, speed is nothing without trust. Behind every lap, every call, and every win lies a digital backbone built to guard against the unseen. As threats in Formula 1® mature and proliferate, a single weak sign-in or device can compromise safety and performance. Cadieux safeguards rac

We’ve all been there. You open your laptop, log in to your account, log in to your password manager, step away for a quick coffee break, and come back ready to get started on a project, only to be asked by your computer and password manager to log in to both all over again. It’s safe, sure, but it can also feel like one extra speed bump between you and getting work done.At 1Password, we’re always looking for ways to simplify your experience without compromising security. You should feel confiden

I recently learned about the Feeling of Computing podcast and listened to the latest episode. One of the hosts challenged listeners to “write Fizz Buzz with no booleans, no conditionals, no pattern matching, or other things that are like disguised booleans.”Here’s my Python solution:from itertools import cycledef string_mask(a, b): return b + a[len(b) :]def main(): fizz = cycle(["", "", "Fizz"]) buzz = cycle(["", "", "", "", "Buzz"]) numbers = range(1, 101) for f, b, n in zip(fizz, buzz, numbers

Kiro, Spec-kit, Bmad, Tessl, and other SDD frameworks turn business analysts into Markdown reviewers. Isn't there a more agile way to use Coding Agents?

Understanding the intent behind 401 vs 403, 400 vs 422, and other misunderstood status codes.

Comparing Obsidian Security's SaaS monitoring to WorkOS's proven authentication infrastructure for securing AI agents in production.

Style connected UI elements with CSS pseudo-classes that respond to user interest. Interactive examples showing tooltips, forms, and navigation without JavaScript.

はじめに こんにちは、SRE＆プラットフォームチームの和田です。 今回は、「Google Cloud Next 2025」の発表ではお伝えしきれなかった、アプリケーションプラットフォームのグローバル化プロジェクトの詳細をご紹介したいと思います。 「Google Cloud Next 2025」の弊社の発表内容についてはこちらをご覧ください。 www.youtube.com グローバル化プロジェクトでは、2024年にリリースした「LegalOn（旧製品名 LegalOn Cloud）」のアプリケーション基盤をベースに、グローバル向けサービス「LegalOn Global」との基盤統合を目指したマ…

Code is ephemeral. What works right now might get deleted next month. That is no judgement on the code, it is a statement that code isn’t the value prop, the product is. I try and remember this during code review, because even though we call it code review, there is a person at the other […]

Socket is heading to London! Stop by our booth or schedule a meeting to see what we've been working on.

Semaphore’s MCP Server lets AI agents and IDEs access rich CI/CD context to explain failures, summarize pipelines, and suggest fixes.The post AI-Driven Development: Introducing Semaphore’s MCP Server appeared first on Semaphore.

Like many front-end developers, I don’t have a formal computer science background. I rolled into this discipline as a designer wanting more control over the end product and though I did get a bachelors of ICT degree, the actual studies were, ahem, quite light in terms of “fundamental computer science”. This means all I know about capital-s Software Development, I learned as I went from various sources. If that’s you too, this article hopefully saves you a few years.After 20+ years, the things th

Hey, you! 👋🏽 Yeah, you… the person who just clicked the link to get here and read this. Thanks for clicking, and thanks for giving this node a fraction of your attention.Today, SpeedCurve joins Embrace. It’s going to be awesome and exciting. You can read all the details in the press release and Andrew's blog post or join us for a chat on Dec 9th.I want to take this moment to remind you, and ourselves, why the web matters.At its heart, the web is about humanity. It’s about how we choose to evol...

There are lots of tips for [improving your website performance](https://www.debugbear.com/blog/improve-website-performance?utm_campaign=sm-10). But even if you follow all of the advice, are you able to maintain an optimized site? And are you targeting the right pages? Matt Zeunert outlines an effective strategy for web performance optimization and explains the roles that different types of data play in it.

データ基盤チーム & Unit9（エビデンス創出プロダクトチーム）ブログリレー 4日目は、SQLプログラミングのお話をお届けします。Unit9エンジニアの三浦[記事一覧 ]です。昨日は木田さんの『巨大テーブルにインデックスを追加したい、Flywayで』でした。 今回の課題はタイトル通り、月の集合（たとえば、ユーザーがアクティブであった月の集合）から「何年何月から何年何月まで連続していた（アクティブだった）」という期間の集合に変換せよというものです。連続した期間ってのがまとまっていると判定で便利な局面があるんですよね。具体的にどう役に立つかは後述しますが、大変に実用を意識したデータ基盤プログラ…

コーポレート本部 社内情報システム部 兼 CISO室 id:rotom です。 11/15(土) にハイブリッド形式で情シス向けのテックカンファレンス BTCONJP 2025 が開催されます。 btcon.jp corp-engr.connpass.com Business Technology Conference Japan（BTCONJP）は、ITをビジネステクノロジーの領域に昇華し、日本のあらゆる経済活動をアップデートするイベントです。 昨年に引き続き私が core staff として運営に参画しており、所属企業である一休はブロンズスポンサーとして協賛しております。 prtimes.…

Read about various happenings with Baseline during October 2025.

JetBrains and the DMCC AI Centre, a premier hub for artificial intelligence (AI) and innovation in the UAE, have announced a strategic collaboration to advance the growth of AI-driven innovation, entrepreneurship, and technical excellence within Dubai’s technology ecosystem. The agreement marks a key step in JetBrains’ rapid expansion across the MENA region, as its local […]

こんにちは、フロントエンドエンジニアの小張（@kobari41257）です。 今回は特定環境で一部機能が動作しない事象の対応として、PATCHメソッドを使ったAPIをPOSTメソッドに置き換え、新規実装ではPATCHメソ […]

こんにちは、技術広報のえんじぇるです。 STORES は、10月25日に開催されたVue Fes Japan 2025にゴールドスポンサーとして協賛し、また、1名が登壇しました！ 「Demystifying Nuxt Test Utils」というテーマで、STORES のwattanxが登壇しました。 このブログではVue Fes Japan 2025に参加したメンバーから印象に残ったセッション、出来事について聞きました。それぞれの視点のレポートをお楽しみください。 wattanx（Speaker） 印象に残ったセッション: 自分の登壇もあってあまり聞けていませんが… Beyond the F…

「よし、これで完璧！」と思って実装したファイルアップロード機能。テストで同じファイルを2回選んだら...あれ？2回目は何も起きない。 // さっきまで動いてたはずなのに... <input type="file" onChange={(e) => { console.log('ファイル選択した！', e.target.files[0]); uploadFile(e.target.files[0]); }} /> 「え、なんでonChange動かんの...？」 Chromeのコンソールとにらめっこすること数分。これ、実は私の実装ミスじゃなくて、ブラウザの仕様に起因する面白い問題だったんです。今日…

IntroductionRails migrations are powerful tools for managing database schema changes.However, there are scenarios where we need more control over how these migrations execute.We might need to log every schema change for audit purposes.We might want to prevent dangerous operations in production environments.Or we might need to route migrations through an external service for distributed systems.Rails 7.1 introduced Execution Strategies to address these needs.This feature provides a way to customi

November 11, 2025Author: Madeline Gurriarán (@superchupu)My story with dependencies is odd. I started coding in JavaScript about six years ago,and over time I started to notice just how big my lockfiles were getting every timeI wanted to use a new library. Most subdependencies didn't even seem related to the libraries I was using.I had a low-end laptop until recently, and every time this happened I'd notice just how slow installations were getting.I started inspecting what subdependencies were b

I'm looking for a new job.

The illusion of free: How open source SSO quietly makes your team the vendor, the patch manager, and the on-call ops team.

Comparing Credo AI's governance platform to WorkOS's proven authentication infrastructure for securing AI agents in production environments.

Comparing Zenity's AI agent observability platform to WorkOS's proven authentication and authorization infrastructure for enterprise AI security.

Comparing Bedrock Data's data governance platform to WorkOS's comprehensive authentication and authorization infrastructure for securing AI agents and autonomous systems.

Aim Security was acquired by Cato Networks in 2025. Compare their runtime threat detection approach with WorkOS's proven authentication and authorization for AI agents.

A comprehensive comparison of Noma Security and WorkOS for securing AI agents and autonomous systems in enterprise environments.

The ::details-content pseudo-element lets you style the expandable content of details elements separately from the summary, no divs needed.

Create animated transitions between different states of your app without complex animation libraries.

How being active in your local developer community can open unexpected career doors.

Comparing Relyance AI's privacy management platform to WorkOS's comprehensive authentication infrastructure for securing AI agents.

Comparing Skyflow's data privacy vault to WorkOS's comprehensive authentication and authorization infrastructure for securing AI agents.

Comparing Immuta's data governance platform to WorkOS's comprehensive authentication and authorization infrastructure for securing AI agents.

Exploring Tumult Labs' differential privacy platform and comparing specialized data privacy to WorkOS's comprehensive authentication infrastructure for AI agents.

Comparing Jazz Security's DLP platform for AI agents to WorkOS's proven authentication and authorization infrastructure for enterprise AI systems.

With our foundation in positioning and flipping tooltips with anchors, and making pointer tails, we're going to get extra tricky and point them diagonally.

Model Context Protocol servers enable LLMs to interact with tools and data sources, but without observability, debugging performance issues and errors becomes difficult. Agnost provides analytics for MCP servers, tracking tool invocations, latency, errors, and user journeys across Claude Desktop, VS Code, and other AI clients.

A few links about headings that I've had stored under my top hat.Headings: Semantics, Fluidity, and Styling — Oh My! originally published on CSS-Tricks, which is part of the DigitalOcean family. You should get the newsletter.

Concentric AI's Semantic Intelligence protects data accessed by AI agents. WorkOS provides enterprise authentication and authorization for agentic systems.

Nightfall AI's autonomous DLP monitors data exfiltration to AI tools. WorkOS provides the authentication and authorization foundation for securing your AI agents.

Compare HiddenLayer's AI-specific security platform with WorkOS's proven authentication and authorization infrastructure for securing AI agents in production.

Cloudflare Workflows, our durable execution engine for running multi-step applications, now supports Python. That means less friction, more possibilities, and another reason to build on Cloudflare.

Vendor lock-in matters when choosing a cloud platform. Cloud platforms can lock you in by requiring you to build against their specific primitives. Vercel takes a different approach: you write code for your framework, not for Vercel.On AWS, you configure Lambda functions, NAT Gateways, and DynamoDB tables. On Cloudflare, you write Workers, use KV stores, Durable Objects, and bind services with Worker Service Bindings. These primitives only exist with that vendor, which means migrating to another

Vercel detects and supports TanStack Start applications, a full-stack framework powered by TanStack Router for React and Solid. or add nitro() to vite.config.ts in your existing application to easily deploy your projects:Create a new TanStack Start appTanStack Start apps on Vercel use with by default. This means your TanStack Start app will automatically scale up and down based on traffic, and you only pay for what you use, not for idle function time.Fluid computeActive CPU pricingVisit the to l

Vercel's now supports for when models fail or are unavailable. In addition to safeguarding against provider-level failures, model fallbacks can help with errors and capability mismatches between models (e.g., multimodal, tool-calling, etc.).AI Gatewayfallback modelsFallback models will be tried in the specified order until a request succeeds or no options remain. Any error, such as context limits, unsupported inputs, or provider outages, can trigger a fallback. Requests are billed based on the m

エムスリーエンジニアリンググループGMで、データ基盤チームの木田です。 この記事はデータ基盤チーム & Unit9（エビデンス創出プロダクトチーム） ブログリレー3日目の記事です。前回は橋口さんの データ整備の「曖昧さ」に立ち向かう、ドメインエキスパートと協業するための実践的Tipsでした。 本日は、既存のPostgreSQLのさるテーブル (レコード数 100億超) に対して、差分データをSQLで抽出してBigQueryに連携するための索引追加をしたときの経験を元に、PostgreSQLの巨大テーブルに対してFlywayを使用してインデックスを安全に追加する方法についていくつかのテクニックを…

KARTEのマイクロサービス環境でのAI基盤設計を解説。Mastraを核に「まず集中」を採用し、Tool/Storage設計、Memory/Streamingの実践と運用知見を紹介。

自己紹介 はじめまして。 公立はこだて未来大学、システム情報科学部2年の山﨑拓己と申します。 私は、 ...

はじめに こんにちは！武蔵野大学大学院修士1年の白川桃子と申します．こちらの記事では，2025年8 ...

はじめに こんにちは！ STORES で Web エンジニアをしている @m0nch1 です。 STORES にはさまざまなプロダクトが存在しますが、Nuxt を使っているプロダクトが複数あります。 使っているプロダクトの一部画面を紹介しますね。 オーダー管理β 顧客管理 さて、STORES の Nuxt プロダクトは全て Nuxt4 へのアップグレードが完了しました。 どのように進めたのか、大変なことはあったかなどこれから Nuxt4 へのアップデートをする方の一助になればと思ってこれを書いています。 ぜひ参考にしていただければと思います！ そもそも 一応、なぜ Nuxt4 にあげるのか？と…

本記事は、databasemixというツールをつかってMySQLのテーブル情報を1ファイルにまとめる ...

newmoでは、GoogleのAgent Development Kit（ADK）を用いて音声配車AIエージェント「Maido」を開発しています。 これは従来オペレーターが電話で行っていた配車を、音声対話で自動化する取り組みです。Maidoについては以下のnoteで詳しく解説しているので、ぜひ併せてご覧ください。 note.com 本記事では、Maidoとユーザーの会話評価を自動化するために構築した「Conversational Evaluation」基盤の仕組みと運用について紹介します。 Agentのアーキテクチャ 評価の仕組みを説明する前に、Maidoのアーキテクチャを簡単に紹介します。 …

こんにちは、STORES でモバイルアプリを開発している @tomorrowkey です。 Kotlin Fest 2025、お疲れ様でした！「Kotlinを愛でる」をキーワードに1日中Kotlinについて考える濃厚な1日でした。 この記事では、STORES で取り組んだことや、印象に残ったセッションについてみんなの感想をまとめていきたいと思います。 登壇 STORESからは @tomorrowkey が登壇しました。 文字列操作の達人になる ~ Kotlinの文字列の便利な世界 ~ 初学者向けに文字列を題材にKotlinらしい書き方について話しました。 Kotlinはバックエンド言語があるマ…

こんにちは、バックエンドエンジニアの田中 湧大 (@Romira915)です。 今回は、Terraformで管理しているFastlyの設定をコンソールから直接変更したことがきっかけで、TerraformのStateが壊れ […]

はじめに こんにちは。Data Analyst の Alicia です。 この記事をお読みいただく前に、まずは下記の記事でプロジェクトの全体像をご覧いただくことをお勧めします。2本合わせてお読みいただけると嬉しいです。 tech.legalforce.co.jp 今回は、その続編として、前回の記事でご紹介した「MQL ファクター」の技術的な裏側を深掘りして解説していきます。 皆さんの現場でも、こんな課題を感じたことはないでしょうか？ AI の予測結果が「ブラックボックス」で現場が使ってくれない SHAP 分析の結果は専門的すぎてエンジニア以外に伝わらない この記事では、 Geminiを活用して…

We often need validations that adapt dynamically to the state of a model. At the same time, we want to avoid duplication and keep our code DRY. Rails 8.1 introduced the ability to pass a callable to allow_nil and allow_blank, giving us exactly that: validations that are conditional and easy to maintain.In this post, we’ll explore this feature through a book publishing workflow. Imagine a Book model with attributes like isbn and status. Draft books are treated differently from published ones, and

I gave a talk, “Understanding Unicode”, at Longhorn PHP last month. It’s loosely based on “Why does ‘👩🏾‍🌾’ have a length of 7 in JavaScript?”, a blog post I wrote in 2023.Though the talk is for PHP developers, I think it’s applicable to anyone who wants to understand more about Unicode, UTF-8, and more.Here’s the recording:Video You can also download the slides here.If you want to learn more about this topic through a PHP lens, see this more detailed presentation by Andreas Heigl.

Kirby Air Ride patch art by @threadbreak_embroidery I like to think I’m a pretty big fan of Kirby Air Ride. I’ve played the game for thousands of hours since its release in 2003. I have a TV in my house hooked up solely to play Kirby Air Ride, which I play at least once a week. I’ve always felt this game was underrated. I yearned for a sequel, but had given up hope after two decades.In April, out of nowhere, Kirby Air Riders was announced. I was floored.This weekend, after what felt like 22 year

Learn how to optimize payment forms with frontend techniques to reduce abandonment and increase conversion rates. From performance optimization to UX design, discover actionable strategies that can boost conversion by up to 35%.

はじめに こんにちは。Data Analyst の Alicia です。 多くの企業の営業現場では日々、「どの顧客が有望なのか？」「なぜその顧客が有望なのか？」という 2 つの問いに直面することが多いのではないでしょうか。 私たちは、この 2 つの問いに納得感をもって答えられるように、予測 AI と生成 AI を融合させた新しい仕組みを開発・導入しました。 予測AI （上図左側）：顧客のメタ情報と行動データを基に、「商談化の可能性」をスコアリングし、スコアが高い有望顧客を特定。 生成AI （上図右側）：「なぜその顧客が有望なのか」という有望の根拠を、分かりやすい自然な日本語で生成。 この「スコ…

Why SCIM looks easy on paper but is one of the hardest integrations to build and scale in practice.

Learn how to set pause execution, inspect application state, and discover advanced breakpoint functionality.

Give your AI agent access to your running application. They can see errors, inspect the network tab, check the DOM, and debug issues while you work.

MCP の普及に伴い、多数のツール定義が LLM のコンテキストを圧迫する課題が浮上しています。本記事では Progressive disclosure（段階的開示）による最小限の情報提供、MCP を使ったコード実行によるツール呼び出しの効率化、単一の検索ツールによるコンテキスト削減など、実践的な解決策を Claude Skills や Cloudflare Code Mode の事例とともに解説します。

Pikku 0.10 delivers production-ready tree-shaking with service aggregation, a revolutionized CLI framework, and major middleware improvements.

See what's rising, what's dying, and where the jobs are actually going

OWASP’s 2025 Top 10 introduces Software Supply Chain Failures as a new category, reflecting rising concern over dependency and build system risks.