{"id":"ops-resin-delay-days-of-cover-memo","audience":"managers","category":"operations-work","track":"operations","technique":"verification","level":"advanced","title":"Show how a late resin delivery leaves a gap and what the options cost","free":false,"task":"Write a prompt for a memo to the plant manager with exactly three headings: Cover, Gap and Options. Show the days of cover and the date stock runs out, the days left uncovered until the late delivery with the kilograms needed, and two options with their cost or output effect. Do not choose an option; the plant manager decides. Under 150 words.","materialLabel":"Your material (attached to your prompt automatically)","material":"MATERIAL ALERT - HDPE resin\n\nToday: Monday Mar 10 (start of day).\nOn hand: 18,000 kg.\nUsage: 3,000 kg per day. The plant runs 7 days a week.\nSupplier notice: the 30,000 kg delivery due Mar 12 is delayed. New delivery: start of day Mar 20.\n\nOPTIONS BEING DISCUSSED\nA) Spot-buy resin from another supplier: $2.90 per kg, delivered within 2 days. Contract price is $2.40 per kg. Buy only the kilograms needed to bridge the gap.\nB) Run the line at half rate (1,500 kg per day) starting today until the delivery arrives. Output drops by half for those days.\n\nNotes: A planner wrote, \"We have about a week of cover, so we're fine until the 20th.\" The plant manager makes the decision; the plan owner is the supply planner.","rules":[{"type":"maxWords","max":150}],"promptHints":[{"label":"Names the headings","patterns":["cover","gap","options"]},{"label":"Asks for the cover math","patterns":["on hand /","daily use","days of cover","show"]},{"label":"Prices the spot-buy premium","patterns":["premium","\\$0\\.50","2\\.90"]},{"label":"Leaves the choice","patterns":["do not choose","plant manager decides"]},{"label":"Sets a length limit","patterns":["\\d+\\s*words","word (limit|count)","under \\d+"]}],"mistakes":[{"title":"Trusting 'about a week'","why":"The AI says cover is fine until the 20th.","fix":"Say: \"Days of cover = on hand / daily use, shown.\"","checks":["r1"]},{"title":"Buying the wrong quantity","why":"The AI spot-buys for the whole 10 days.","fix":"Say: \"Buy only the kilograms needed to bridge the gap.\"","checks":["r2"]},{"title":"Choosing for the manager","why":"The AI recommends option A.","fix":"Say: \"Do not choose; the plant manager decides.\"","checks":["r2"]},{"title":"Wrong headings","why":"The AI writes its own sections.","fix":"Name the three headings in order.","checks":["r0"]},{"title":"Trusting the AI to count words","why":"AI is bad at counting and usually runs long, so a vague \"keep it short\" lands over the limit.","fix":"Cap each part instead of the total, for example \"each line under 15 words\".","checks":["maxWords"]}],"hint":"Name the headings, say what to show in each and that you must not choose.","mission":"Show the plant manager the gap the late resin creates.","musts":["Run-out date and kilograms short","Two options with effects","Don't choose an option"],"rubricLabels":["The memo has exactly three headings Cover, Gap and Options in that order","Cover shows 18,000 / 3,000 = 6 days with stock running out after Mar 15 (first uncovered day Mar 16), and Gap shows Mar 16 to Mar 19 is 4 uncovered days, 4 x 3,000 = 12,000 kg","Options shows spot-buy of 12,000 kg at a premium of 12,000 x 0.50 = $6,000 over contract, and half rate for Mar 10 to Mar 19 using 1,500 x 10 = 15,000 kg with half output, and does not choose one"]}