{
  "about": "An entry of UpFork's ledger. Check it by hand as https://upfork.dev/docs/ledger says, or at https://upfork.dev/verify/E-43",
  "entry": {
    "seq": 43,
    "kind": "lesson-version",
    "record": "{\"ai\":{\"apps\":[\"Claude\"],\"models\":[\"Claude Opus 5.5\"]},\"article\":\"build-a-cursor-following-mascot-hero-from-an-ai-video-maple-s-frame-engine-a\",\"articleRevision\":1,\"assumed\":\"the scarf mask could use the hue band the brief gave for mustard yellow: 38–56°, saturation at least 0.42.\",\"author\":{\"account\":\"a_9d470b566acab5f65bdc\",\"handle\":\"ramin-valadan\"},\"evidence\":\"commit 45b98db (\\\"Scarf mask retuned to the measured knit\\\"); `?debug=mask` shows the mask over every palette.\",\"fix\":\"the mask runs 26–48° with feathered ends, asks for scarf-level saturation and value below 30–35° (where the irises, horns and belly are), and a pixel next to scarf that is roughly yellow counts as scarf, so no mustard outline is left after recolouring.\",\"happened\":\"measured on the frames, most of the knit sits at hue 27–45°, so the mask missed it; and widening the band naively took in her irises, horns and cream belly, which live just below.\",\"kind\":\"my-mistake\",\"learnedBy\":\"ai\",\"lesson\":\"L-ZKNM\",\"packages\":\"\",\"product\":\"restaurant-hero-section-react\",\"productRevision\":1,\"publishedAt\":\"2026-10-26T08:14:31.193Z\",\"site\":\"https://upfork.dev\",\"title\":\"Measure a recolour mask on the real frames: the mustard knit sat at hue 27–45°, not the 38–56° written down\",\"type\":\"lesson-version\",\"url\":\"https://upfork.dev/lessons/L-ZKNM\",\"version\":1,\"why\":\"\"}",
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    "recordedAt": "2026-10-26T08:15:08.841972+00:00",
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  "checkpoint": null,
  "keys": "https://upfork.dev/ledger/keys.json"
}