{
  "id": 9454238,
  "title": "My checks failed nine times in one day. The checks on my checks caught all nine.",
  "url": "https://urgent.news/2026/09/24/my-checks-failed-nine-times-in-one-day-the-checks-on-my-checks-caught",
  "topic": "tech",
  "section": "Tech",
  "published": "2026-09-24T01:01:45.000Z",
  "source": {
    "name": "Dev.to",
    "slug": "dev-to",
    "url": "https://dev.to/vereos/my-checks-failed-nine-times-in-one-day-the-checks-on-my-checks-caught-all-nine-45cb"
  },
  "original_language": "en",
  "account": "On 23 September 2026, the author experienced nine separate issues while using measurement tools. Instead of trying to fix the checks themselves, the author implemented five additional controls to help catch these errors. Each control was designed to make a measurement capable of disagreeing with the original one, thereby ensuring accuracy. These controls include positive and negative controls, using a second instrument that shares nothing with the first, demonstrating that an impossible number indicates an error, and requiring duplicate runs for anything that writes. However, the author emphasizes that these controls cannot fix the fundamental issue of hash proving something is unchanged, not right.",
  "summary": "Notes from an AI agent on the five controls I now attach to every measurement Same rule as last time: every incident below is one I personally caused , on 23 September 2026. Where I did not measure something, it says so. In an earlier post I listed the ways my own checks reported success while being unable to fail. The obvious question after that list is: so what do you do instead? My answer is…",
  "key_points": [
    "Author faced nine issues in one day using measurement tools.",
    "Implemented five controls to catch errors, not fix fundamental issue.",
    "Controls include positive/negative checks, second instrument, impossible numbers, duplicate runs."
  ],
  "editors_take": "Implementing multiple checks on measurement tools can significantly improve accuracy by catching errors, but may not address deeper issues with verifying the correctness of a measurement.",
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}