Chat SDK brings agents to your users
Chat SDK is a unified TypeScript library for building chat bots that work across Slack, Discord, Teams, and more from a single codebase. Write once, deploy everywhere.
Cloudflare WAF protects WordPress applications from two high-severity vulnerabilities
Cloudflare has deployed two WAF rules in response to high-severity vulnerabilities disclosed to us by the WordPress security team. The new rules protect all Cloudflare customers using affected WordPress versions, but customers should still update immediately to a patched release.
The cost of saying yes has changed
The cost of writing code dropped; the cost of owning it didn’t. A framework for deciding which changes are actually cheap in the AI era.
Learning a few things about running SQLite
In-House LLM Serving at Netflix
When It Makes Sense To “Block” The Main Thread — Smashing Magazine
The common rule of thumb is to never “block” the browser’s main thread when running JavaScript tasks. But is this a hard rule? Victor Ayomipo describes a use case he encountered involving a screenshot extension where he made an exception to the rule and decided that blocking the main thread was absolutely the right thing to do.
Understanding Vercel Functions
Learn about how Vercel Functions help you run secure, highly available, and fast compute.
Sightlines issue no.1: Insights from Config
The conversations we’re still replaying from Config’s Leadership Collective.
The Archaeologist’s Copilot
This article explains the approach I used to modernize a Java 1.5 codebase that no longer built reliably on modern machines. My early use of LLMs gave me plausible answers that did not hold up in the codebase. Progress came when I grounded the process in evidence, using AI to support analysis, validation in a stable Docker environment, and gradual refactoring protected by tests. The main takeaway
The Orchestrator's Tax
Subagents get justified by time saved and parallel execution, but that's not what matters most in long-running multi-agent work. Every token in the orchestrator's context is competing for its attention, and the real value of a subagent is what it keeps out of that context, not how fast it runs. I argue that subagents should be treated as a tool for protecting the orchestrator's working memory, off
Upgrading Checkout Blocks app to Polaris web components (2026) - Shopify
We moved five high-traffic checkout extensions to remote-dom and Polaris web components, cutting bundle sizes drastically and making checkout faster.
GitHub for Beginners: Your roadmap to mastering the GitHub essentials
New to GitHub? This beginner’s guide explains version control, repositories, and pull requests—plus everything else you need to start working confidently on GitHub.
Exploring Hierarchical Interest Representation For Meta Ads Deep Funnel Optimization
Hierarchical Interest Representation is a research area for Meta Ads. We’re exploring an upstream representation layer over the universe of Ads entities – users, advertisers, products, services – learning unified embeddings that connect users’ inferred interests with the breadth of what advertisers offer in their deep funnel ads. The innovations in Hierarchical Interest Representation are […] Read
No, People Don’t Want More AI In Their Life — Smashing Magazine
Many companies assume everyone craves new AI features. But the reality is that most people don
How Speechify serves 500,000 dynamic pages to 60 million users on Vercel
What’s !important #15: Boundary-aware CSS, Time-based CSS, Full-bleed CSS, and More
Read all about boundary-aware CSS, accessible grid lanes, time-based web designs, full-bleed, the customizable select, and new web platform features.
How SQL/PGQ Rewrites to Joins on PostgreSQL 19
This blog post discusses how SQL/PGQ acts as Joins in PostgreSQL 19 with some walkthrough examples and limitations.
DSLs Enable Reliable Use of LLMs
LLMs generate code incredibly fast, but to ensure they generate exactly what is intended, they need clear boundaries. Abstractions and Domain-Specific Languages (DSLs) provide a strong harness that guides LLMs right from the start. The example of Tickloom - a domain model and DSL for illustrating distributed system behavior - shows how we can use an LLM as a partner to iteratively build a DSL and
Inside Shopify Hack Days: Building a prototype for music-playing pages (2026) - Shopify
Hack Days are a core part of Shopify’s experimentation culture. Here’s one project that made product pages sing.
Shipyard: How We Built Slack’s Next-Generation EC2 Platform
Over the past few years, we’ve been on a journey to modernise how we run Amazon Elastic Compute Cloud (EC2) instances at Slack. In our first post, Advancing Our Chef Infrastructure, we shared how we moved from a single Chef stack to a resilient, multi-stack setup with versioned cookbook deployments and safer promotion workflows. This…
Building Slack agents can be easy
Build and deploy Slack agents in a single session. This skill handles configuration, secrets, and deployment, taking you from idea to production with just a conversation with your coding agent.
Introducing Precursor: detecting agentic behavior with continuous client-side signals
Precursor, our new continuous behavioral validation engine for bot management, offers visibility into how humans and bots actually interact across the full user journey. By turning session-level behavior into bot detection signals, it identifies advanced automation with higher precision — while reducing friction for legitimate users.
Modernizing the Meta Ads Service With an Open-Source Kernel Scheduler
TL; DR At Meta’s scale, a few milliseconds of latency degradation can have a significant negative impact on ads performance. When a Linux kernel upgrade risked regressing latency across Meta’s ad serving fleet, we turned to sched_ext — the upstream, BPF-based extensible scheduling framework — to build a scheduling policy customized to the Ads delivery […]
Open-weight models surge to 29% of volume, price per token flattens
The AI Gateway production index covering data from June 2026: Open-weight models increased to a third of all token volume; Anthropic continues to dominate spend with 61%