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News
My journey into tech: from traffic manager to future developer
16+ min ago (22+ words) Hey, dev.to! 👋 I'm Maycon, a Systems Analysis and Development student at UNICID, currently making a... Tagged with career, learning, python....
Context Window Management for Long-Running AI Agents: 4 Patterns That Work
40+ min ago (650+ words) The agent had been running for four hours and it was arguing with itself about a file it had already fixed. For years I'd thought about context window management as a packing problem. How do I fit more in. That…...
A Telegram job alert bot in 60 lines of Python, on live ATS data
29+ min ago (456+ words) Job boards go stale fast. By the time a weekly digest reaches you, the interesting roles have been open for a month. So let's build the smallest thing that fixes that: a Telegram bot that wakes up, asks one API…...
The more aggressive matmul kernel lost to the register budget
51+ min ago (171+ words) The WebGPU matmul sweep started with a naive kernel, then added 16 by 16 workgroup tiling and a 4 by 4 output block per thread. At a 2048 cubed matrix size, the measured time moved from 47.24 ms for the naive kernel to 17.23 ms for tiling…...
56 fault-injection tests passed. The one that injected nothing failed.
1+ hour, 17+ min ago (415+ words) I was building a tool that detects when data quietly changes meaning — a vendor switching units, a source dropping a field, an undocumented enum appearing. The kind of failure where every test passes and every job is green. Claims about…...
gh api --paginate --slurp --jq 'length' Counts Pages, Not Issues
1+ hour, 34+ min ago (415+ words) gh api --paginate --slurp --jq 'length' is the command everyone reaches for to count issues in a repository. It does not count issues. It counts pages. I found this while writing pagination recipes for a toolkit, and then found the…...
From SkillCheck to TraceMantle: Tracking Agent Skill Changes and Test Evidence
1+ hour, 59+ min ago (637+ words) I’ve renamed SkillCheck to TraceMantle and expanded its scope. The original project focused mainly on validating AI agent skill files. TraceMantle retains that functionality and adds support for tracking the files in a skill package, comparing changes, and checking whether…...
I built a radio station with one listener, and it runs in a terminal
1+ hour, 51+ min ago (638+ words) The film above is 86 seconds, and the middle of it is a real on-air moment. There is a longer unedited recording at the top of the repo README. Watch either first, with the sound on. The rest of this post…...
When a Zero-Parameter Cache Overtakes a Transformer
2+ hour, 22+ min ago (574+ words) The question this series exists to answer, put in a form that can be measured: a transformer sees a fixed 64-token window, a count table over the current document sees the whole document, and as documents get longer, how much…...
tokeneff: An Open-Source LLM Cost Meter That Runs Locally
2+ hour, 45+ min ago (338+ words) Most LLM dashboards show you the bill after the damage is done. You run a coding agent for an afternoon, ship a feature, and two days later your OpenAI dashboard says you spent $47. On what? Which model? Which request? You…...