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DesenvolvimentoDEV Community

Why 174 Skills Show Zeros in Three Dimensions

We published a number that was a placeholder, and a fifth of the directory carries it. This is the least flattering post we have written, and it is the most useful one. Update, 2026-10-22: This backlog has been cleared. All 174 entries now carry full six-dimension scores and valid rationales; the unevaluated state described below no longer exists in the directory. The post is left as written, because the explanation of how the defect happened is the part worth keeping. Open any of 174 skill page

21 de outubro de 2026DEV Community
DesenvolvimentoDEV Community

Python Basics

Introduction Data is the new oil, but Python is the combustion engine. While traditional enterprise tools crash under the weight of modern datasets, Python enables leaders and future professionals to scale operations through automation, predictive analytics, and custom machine learning pipelines. It is no longer just a programming language, it is the core infrastructure powering algorithmic decision-making in the modern economy. In this article, we will cover the basics of Python. This includes;

21 de outubro de 2026DEV Community
DesenvolvimentoDEV Community

How to run a game night for eight online: logistics, timing and a script for the first five minutes

Eight is the largest number that most online games seat, and it is the hardest to run. Eight voices, eight devices and eight different ideas of when the evening should start. A game night for eight needs a little logistics. Here is the plan I would use, with timings based on the real lengths of the games on a free site I make, Boardit. Two days before Send the invitation with a start time, a link to the call and a link to the table. Say how long the evening will last, usually ninety minutes. Ask

21 de outubro de 2026DEV Community
DesenvolvimentoDEV Community

One bad tenant can sink your whole email platform: what I learned building a reputation circuit breaker

I'm a solo founder in the UK building SentriSend, a security gateway that sits in front of transactional email (AWS SES / Resend). This week I shipped two features. Building them changed how I think about multi-tenant email, so here's what I learned. The problem nobody sees: subscription bombing Bots push a victim's address into hundreds of signup forms at once. The victim's inbox floods, and every site involved picks up complaints and spam-trap hits. The nasty part is that each individual site

20 de outubro de 2026DEV Community
DesenvolvimentoDEV Community

Keyword search ties a purpose-built memory layer on 200 LongMemEval questions

I build one of the systems in this test, so discount accordingly. Posting the numbers because they surprised me and because the boring result is the interesting one. Setup: 200 questions from LongMemEval, three ways of giving a model memory over the same material. A collaborator ran all three arms with the same reader (Qwen 3.8 27B, Q4) and the same grading rubric. A structured memory layer (MemStrata, my product): facts stored with provenance and validity, retrieved as structured evidence. SQLi

20 de outubro de 2026DEV Community
DesenvolvimentoDEV Community

How to Run Multiple Claude Code Sessions in tmux (and Why 3 Beats 5)

Anthropic's own docs tell you to start a team of Claude Code agents at 3 to 5, and they say outright that "three focused teammates often outperform five scattered ones." Most of the "I run 12 agents in parallel" posts skip that line. I run multiple Claude Code sessions in tmux every day. tmux is free, it's been around since 2007, and it covers what parallel agents need: one session per git worktree, send-keys so scripts can drive agents, and detach/reattach so a job on a remote box keeps going w

20 de outubro de 2026DEV Community
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