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Five fix rounds and no parallel implementers: inside subagent-driven-development
17+ min ago (931+ words) A reading of the fix loop in the Superpowers skill that runs a plan one subagent at a time. The subagent-driven-development skill in obra/superpowers caps every task at five fix rounds and forbids two implementation subagents from running at…...
Python Syntax Every Beginner Forgets And How to Finally Remember It
1+ hour, 5+ min ago (597+ words) Every beginner knows the feeling. You understand the logic, you know what the program should do, and then you freeze on a tiny detail. Is it append or add? Do dictionaries use square brackets or curly ones? Does a slice…...
Control Statements in Python
1+ hour, 19+ min ago (614+ words) When a loop is running, there are situations where we may not want it to continue in the usual way. Sometimes we may want to stop the loop completely. In other situations, we may want to skip the current iteration…...
The UTF-8 / Code Page Surprise That Corrupted My Log Parser
39+ min ago (304+ words) The parser wasn’t wrong. The bytes were fine. My shell lied about what “text” meant—and I shipped a log tool that mangled non-ASCII lines until a Czech filename in a support zip made the bug undeniable. This is a…...
PowerShell Measure-Object: Count Lines and Sum Folder Sizes in One Line
49+ min ago (356+ words) The PowerShell Measure-Object cmdlet turns a pile of output into a number. How many lines are in this log? How much disk does this folder eat? What's the average order total in this CSV? Instead of opening Excel or writing…...
PowerShell Test-Path: Check a Path Exists Before You Act
48+ min ago (270+ words) The PowerShell Test-Path cmdlet answers one question: does this path exist? Use it before you read, write, delete, or create — so your script fails early with a clear message instead of throwing midway through a longer job. For the official…...
PowerShell Select-String: Find Text in Files Fast
49+ min ago (345+ words) The PowerShell Select-String cmdlet finds text inside files — the same job grep does on Linux/macOS and findstr does in classic CMD. When you are hunting for an error code in logs, checking whether a config key exists, or scanning…...
I shipped a linter for checks that cannot fail. It had four of them.
22+ hour, 31+ min ago (1898+ words) High false positive rates on real repositories What the numbers are now, all hand-labelled, no estimate of an estimate. Four detectors are two. D4 went on 0 defensible of 18 sampled, D2 on 0 true of 27 censused. Corpus output went 1986 findings to 1026. Yesterday I published…...
How I'd Learn Python in 2026 (A Realistic Roadmap)
39+ min ago (407+ words) "I've published 28 articles about Python in four weeks. I've made every beginner mistake in the book. If I had to start over today, this is exactly what I'd do — and what I'd skip." Learning Python in 2026 is different from learning…...
ERC-4337 Has Two Execution Results. Your Dashboard Should Show Both.
39+ min ago (472+ words) A block explorer shows a successful transaction. A wallet dashboard marks the operation as successful too. For an ERC-4337 flow, those may be two different results. Check the operation-level event When handleOps completes successfully, the EntryPoint emits a UserOperationEvent for…...