https://roscoe.run/blog Notes from building Roscoe. en https://roscoe.run/blog/plant-the-bugs https://roscoe.run/blog/plant-the-bugs AI-written tests can all pass and still miss a bug. Plant small bugs on purpose, count how many the tests catch, and let that count say when they're done. Fri, 25 Sep 2026 00:00:00 GMT Engineering https://roscoe.run/blog/only-what-you-told-it https://roscoe.run/blog/only-what-you-told-it Interview yourself once and approve what it wrote down. Every resume and cover letter after that is built from it and checked against it, claim by claim. Fri, 18 Sep 2026 00:00:00 GMT Guides https://roscoe.run/blog/check-quotes-word-for-word https://roscoe.run/blog/check-quotes-word-for-word A script checks every direct quote in your write-up against the interview transcript. The AI only judges the paraphrases, one at a time. Fri, 11 Sep 2026 00:00:00 GMT Guides https://roscoe.run/blog/catch-the-signs-of-ai https://roscoe.run/blog/catch-the-signs-of-ai Em dashes, stock words, lines that fit any email. A script counts the signs it can, AI judges each check one rule, and the draft is rewritten until it passes. Fri, 04 Sep 2026 00:00:00 GMT Guides https://roscoe.run/blog/clean-a-csv-with-ai https://roscoe.run/blog/clean-a-csv-with-ai Have the AI suggest the fixes instead of handing back your file. A script applies them, checks the row count and totals, and you approve before it's written. Fri, 28 Aug 2026 00:00:00 GMT Guides https://roscoe.run/blog/decide-the-math-first https://roscoe.run/blog/decide-the-math-first A group chat holds reading, math and a judgement call. Give the AI the reading, a script every sum and check, and a person the call. Fri, 21 Aug 2026 00:00:00 GMT Guides