{"id":"ops-safety-stock-explainer-new-supervisor","audience":"operations","category":"operations-work","track":"operations","technique":"audience","level":"beginner","title":"Explain safety stock to a new supervisor in four sentences","free":false,"task":"Priya just became a shift supervisor and has never heard of safety stock. Write a prompt for an explanation in exactly 4 sentences: what it is in plain words, why we hold it, the bearing example with its numbers, and who changes the level. Use no jargon and no terms from the planner's note that Priya wouldn't know. Plain text.","materialLabel":"Your material (attached to your prompt automatically)","material":"PLANNER NOTE (from Wei Tan, inventory planner)\n\nSafety stock is the extra inventory we hold on top of what we expect to use while waiting for a reorder to arrive. It covers surprises such as a late truck or a busy week. We size it from demand variability and lead-time variability at a 95% service level, using the standard deviation of daily demand.\n\nExample: bearing 6204. Average use is 40 per day. Reorders take 6 days to arrive. Safety stock is set at 90 units, which is a little over 2 days of use. If a truck is two days late, the line keeps running.\n\nToo much safety stock ties up cash and shelf space. Too little means stockouts and line stops.\n\nOnly the planner changes safety stock levels in the system. Supervisors should not adjust them. If you see repeated stockouts or a shelf full of something we rarely use, tell the planner.","rules":[{"type":"plainText"},{"type":"maxSentences","max":4}],"promptHints":[{"label":"Names the reader","patterns":["priya","new (shift )?supervisor"]},{"label":"Fixes the four sentences","patterns":["exactly 4","4 sentences","four sentences"]},{"label":"Asks for the example","patterns":["example","bearing","40 per day"]},{"label":"Bans jargon","patterns":["no jargon","plain","service level"]},{"label":"Asks for plain text","patterns":["plain","no bold","no markdown","no formatting","no headings"]}],"mistakes":[{"title":"Using the planner's jargon","why":"The AI repeats service level and standard deviation.","fix":"Say: \"No jargon: do not use service level or standard deviation.\"","checks":["r2"]},{"title":"Skipping the example","why":"The AI explains in general terms only.","fix":"Say: \"Sentence 3: the bearing 6204 example with its numbers.\"","checks":["r1"]},{"title":"Wrong sentence count","why":"The AI writes a long explanation or bullets.","fix":"Say: \"Exactly 4 sentences, each covering one named point.\"","checks":["r0","maxSentences"]},{"title":"Getting markdown back","why":"AI adds bold, headings and bullets by default, which show up as stray symbols where this is pasted.","fix":"Say \"plain text, no bold, no headings, no asterisks\".","checks":["plainText"]}],"hint":"Say who it is for, what each of the four sentences covers and which jargon to avoid.","mission":"Explain safety stock to new supervisor Priya in plain words.","musts":["Exactly 4 sentences","Include bearing example numbers","No unknown jargon"],"rubricLabels":["The explanation has exactly 4 sentences","It uses the bearing 6204 example with the numbers 40 per day, a 6-day reorder wait and 90 units of safety stock","It says in plain words that safety stock is extra inventory for surprises, and says only the planner changes levels (tell the planner about stockouts or excess), without terms like service level or standard deviation"]}