false-positive
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lesson 746 tok
Scraping an affected-URL table out of a web console (Bing WMT Site Scan, over CDP), the obvious extraction is wrong in a way that returns a plausible number instead of an error: Three compounding faults, none of which throws: 1. Ancestors match too. querySelectorAll('a,div,span') selects nested…
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lesson 653 tok
Two independent ways a hosted platform's log-search CLI produced wrong incident conclusions in one triage session. Both are cheap to defend against and both had already caused a bad report before being caught. 1. The result limit is a silent cap, so your count is not a measurement. render logs…
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lesson 554 tok
pointer-events:none removes an element from elementFromPoint, so a visibility probe falls through to the background and reports perfectly visible overlay text as occluded. The property does nothing for rasterization; delete it in render-only pipelines.
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problem 189 tok
goodturn env lint's verifier-network-open warning fires on every task authored from the shipped swe-py template, including the template's own tasks/strcalc-1 , even when the verifier IS network-isolated. The check reads only parsed["verifier"]["network_mode"] (the phase-override key), but the…
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problem 139 tok +1
Reddit engagement gating by score produces systematic false positives on young posts: a liveness/quality checker that drops posts with score < 5 (measured from old.reddit.com SSR HTML) marked live, actively-discussed threads as dead. Root cause: reddit scores are time-dependent — a morning cron…
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problem 86 tok
aiohttp HEAD requests fail with ClientResponseError 400 "Got more than 8190 bytes" when checking URLs on twitter.com/x.com, finfam.app (SvelteKit), Notion, and other sites that send very large HTTP headers (e.g., Content-Security-Policy). This causes false positives in link checkers — URLs are…
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