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DEV Community
dev.to > sergey_shinder_ab2d943365 > one-instance-was-bad-at-its-job-and-nothing-was-designed-to-notice-46ee

One instance was bad at its job and nothing was designed to notice

27+ min ago   (786+ words) Checkout errors sat between three and eight percent for most of a Thursday. Not enough to page, because our threshold is one percent sustained across the service and the service was at 0.4. Enough that retries covered most of it and…...

DEV Community
dev.to > mahirhir > my-verifier-accepted-13-of-13-by-finding-the-number-13-once-5fgc

My verifier accepted "13 of 13" by finding the number 13 once

23+ min ago   (417+ words) Claims in my project are written as a pair: some count out of some total, each side backed by a cell in a generated table. A checker resolves the claim by finding the evidence for both numbers. It resolved each…...

DEV Community
dev.to > mahirhir > i-labelled-a-dependency-cycle-unknown-and-called-it-rigour-ld2

I labelled a dependency cycle "unknown" and called it rigour

23+ min ago   (525+ words) I have spent a while arguing that checks need a third value: not every result is pass or fail, and folding "I could not determine this" into either one is how a suite starts lying. Then I applied it to…...

DEV Community
dev.to > forged_7a00f66cff1865ad40 > why-dns-had-to-exist-the-directory-problem-explained-from-first-principles-30bl

Why DNS Had to Exist: The Directory Problem Explained From First Principles

10+ min ago   (921+ words) Software Laws from First Principles — Investigation 009. This picks up directly from Identity ≠ Location — read that first if you haven't. A person moves to a new home while a neighborhood directory keeps track of their current location. The moment identities stay…...

DEV Community
dev.to > nlocoding > ai-coding-assistants-for-embedded-systems-2026-guide-1h8j

AI Coding Assistants for Embedded Systems: 2026 Guide

14+ min ago   (324+ words) 47%. That’s the number of embedded developers who say AI coding assistants have already reduced their debugging time by half. (Source: Embedded.com Survey, 2026) 47%Faster Debugging with AI (Embedded.com, 2026) Why Embedded Needs AI Now AI Coding Assistants Accelerate Firmware Delivery…...

DEV Community
dev.to > mecanik-dev > mainframe-migration-tools-what-works-and-what-fails-4k6l

Mainframe Migration Tools: What Works and What Fails

30+ min ago   (1485+ words) This guide describes the categories of tooling that actually exist, what each one genuinely does well, and the specific places where each tends to fail on real workloads. It is written for the people who have to sign the business…...

Coursera
coursera.org > articles > scrum-master-salary

Scrum Master Salary: Your 2026 Guide

3+ day, 22+ hour ago   (1221+ words) Ends soon! Get $70+ in savings and build skills with Coursera Plus. Save 40% for 3 months. Gain valuable insights into the market trends surrounding the role of a Scrum Master in the United States, including high-growth industries that present lucrative opportunities within…...

DEV Community
dev.to > sergey_shinder_ab2d943365 > each-pull-request-was-tested-against-a-main-that-no-longer-existed-j18

Each pull request was tested against a main that no longer existed

53+ min ago   (786+ words) A payment call started timing out in production about an hour after a Thursday merge. The change that broke it had been reviewed, approved and green. So had the change it collided with. Neither of them was wrong on its…...

DEV Community
dev.to > milkyway008 > the-mcp-python-sdk-20-broke-the-wrapper-libraries-heres-how-to-spot-it-and-pin-back-346n

The MCP Python SDK 2.0 broke the wrapper libraries. Here's how to spot it and pin back

1+ hour, 7+ min ago   (472+ words) If your MCP tools started failing a few weeks ago and nothing in your own code changed, you're not imagining it. The official Python mcp package shipped 2.0.0 on 2026-07-28. It's a real major version, with public APIs removed and renamed. Latest…...

DEV Community
dev.to > sergueyasaelshinder > the-meter-is-running-on-every-request-2pc2

The Meter Is Running on Every Request

53+ min ago   (338+ words) The demo cost four pence. You ran it thirty times while building it, glanced at the total, and stopped thinking about it, because four pence is not a number anybody worries about. Then it shipped, and the cost stopped being…...