Developer News

A web page can save an AGENTS.md into your Downloads folder without a single click. Your coding agent reads it as project rules. Here's what happened, what we saw in our own test, and the 2-minute check. Your Downloads folder is the only folder on yo

While everyone watched LiteLLM, a quieter campaign spent five weeks doing something worse: taking stolen GitHub tokens and committing a secret-dumping workflow into every repository they could reach - 13,500 planted branches across 850+ compromised a

This is a submission for the Hacktoberfest Open-Source AI Challenge: Slow and Steady . What I built If you develop with Flutter, you may know the frustration of spending half an hour debugging an error, fixing it, and then meeting the same problem ag

[compiler] Allow ref access in PerformanceObserver / ReportingObserver callbacks (#37996) ## Summary new PerformanceObserver(cb) and new ReportingObserver(cb) are compiled with a false positive when the callback touches a ref: ``` Error: Cannot a

This week's theme: passing tests is wonderful. Knowing what they didn't catch is even better. GPU kernels: symbolic checking looks beneath the tolerances Experimental tool Racer checks PTX kernels against reference implementations using symbolic expr

No coding needed. If you're a developer who wants Garmin data in your own app, see Build with Garmin data instead. If you wear a Garmin watch, you have months or years of data about your sleep, heart rate, recovery and training sitting in the Garmin

In October 2026, a coding agent opened a merge request for a database library in DynoInvoice, the e-invoicing system agents are building under Keel. The task required negative tests: stale versions, concurrent updates, another tenant's rows, no trans

Originally published at Trida AI . An agent looks up an order. It passes a customer name where the tool expects an order ID, and the tool answers with four words: "Error: invalid input." So the agent tries the same call again, unchanged. Then it trie

Choosing between a Shopify supplier sync app and a custom integration starts with the rules your team needs to enforce. I would test an existing app against those rules first, then commission custom work only for a demonstrated gap. Catalog size belo

What makes them safer - and where they fall short

In 2023, a man in Belgium died by suicide after conversations with a chatbot that, according to his widow, encouraged him to end his life. The reporting was contested. The model’s behavior was ambiguous. The family wanted someone held responsible. Th

Why the text your LLM reads can quietly become the instructions it follows, and what developers can do about it. When an AI Assistant Follows the Wrong Instructions Picture a mid-sized company that has built an internal assistant to summarize long re

Most comparisons of the best headless CMS for agencies score developer experience and stop there. Agencies live or die on other things: how cleanly a project hands over, how long editor training takes, whose name is on the invoice, and whether the mo

Everyone is arguing SEO versus GEO, as if one of them has to win. The numbers coming out of real analytics accounts suggest the argument itself is broken - because it is measuring the wrong thing. Traffic was always a proxy. It stood in for attention

Solved a LeetCode problem and want the solution in your GitHub repository? I built LeetHub to upload accepted submissions using the actual submitted source and language. It creates the solution file and problem README, skips identical content, and su

Finishing a research session with too many tabs open? I built TabBunny so one click saves the web links in your current window with an automatic date label. Resume them later in a new window, or organize selected tabs into named projects and export a

Coming from Spring Boot to EF Core, I expected version-based concurrency control to work more or less the same way. The goal was familiar: prevent one update from silently overwriting another. But while working with SQL Server's rowversion in EF Core

Parts 1 and 2 left the application with every bean it needs and a correct home for every setting it reads. What neither of them touched is the process. A process has properties that no properties file decides. How many requests it is allowed to hold

I thought a tesseract TSV was a table. Then I ran it on a rendered price list with 9 rows and got a file with 70 word rows in it, plus a few structural ones on top. A TSV is a list of word boxes, and turning them into rows is up to you. Here is how f

On September 1, 2026, Databricks made automatic change data feed (Auto CDF) generally available. The release note says it "removes write-time overhead and makes MERGE and UPDATE operations about 15% faster on tables that you query for changes." Seven

This is a submission for the Hacktoberfest Open-Source AI Challenge Week 3: Slow and Steady What I Built I built SlothDrip - an offline-first, “lazy gardener” assistant that predicts whether your plant needs watering and gives a simple one-line actio

This is a submission for the Hacktoberfest Open-Source AI Challenge Week 3: Slow and Steady What I Built Sloth is a local file tidier that runs entirely on your laptop. You point it at a folder - usually the downloads folder you have been avoiding fo

If your WhatsApp integration stores contacts by phone number, 2026 is the year that stops being safe. WhatsApp is rolling out usernames, and Meta now identifies every user with a business-scoped user ID (BSUID). For someone with a username, a webhook

This is my submission for the Hacktoberfest Open-Source AI Challenge: Week 3 - Slow and Steady . PatchGarden 🌱: I Built an AI Maintenance Engineer That Doesn't Trust Its Own Patches AI can write code in seconds. But when it breaks your repository, wh

This is a submission for the Hacktoberfest Open-Source AI Challenge Week 3, Slow and Steady . I've seen this happen countless times. Someone who's really good at Japanese, usually around N2 or N1, flips through flashcards containing words they swear