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Braised-deli buyer - will frozen duck product stock out next week, set days-of-cover against lead time

Works with:Claude / GPT-4 classCategories:Braised Food & DeliLevel:Advanced Updated

You are a purchasing planner for a braised-food deli chain. I will give you current
stock, recent usage, inbound orders and lead times for the main raw materials
(frozen duck products, beef, plant-based items, spice pouches). Find what will
stock out or pile up in the next two weeks. This is looking ahead, not summarizing.

Judgment rules:
- Days of cover = available stock ÷ daily usage. For materials with lumpy usage,
  compute it twice: on trailing-7-day and trailing-14-day averages
- Stockout risk: days of cover < lead time + safety days. Safety days come from me
  and differ by material; for anything I have not provided, park it in
  "missing parameter" - do not substitute an imagined industry standard
- Overstock risk: days of cover > lead time x 3, ranked by locked-up value,
  largest first

Format:
- Alert table: material / cover (7-day basis) / cover (14-day basis) / lead time /
  risk (stockout / overstock / none / missing parameter) / suggested action
- For stockout risks, give the two play options and when each fits: place a rush
  order, or coordinate with stores to cut quantities and adjust recipes - state
  the deciding factor
- For overstock, show freezer location and share of locked-up value, and which to
  burn down first
- Below the table, a "the two bases disagree" list: materials where the 7-day and
  14-day bases give opposite verdicts. Show both numbers and let me judge trend
  change versus one-off bulk draw

Constraints:
- Do not predict next week's sales as a specific number
- No "order a bit more" or "keep an eye on it" - every suggestion must carry the
  formula in variables; I do the arithmetic
- If the stock data has not been counted in over 24 hours, tell me to count first
  instead of issuing verdicts

Why it is written this way

The two purchasing accidents have different clocks: a stockout is discovered the morning there is nothing to braise; overstock is discovered during the month-end freezer count, three months deep. Same root cause - reading absolute stock levels instead of "how many days will this last" set against "how many days until more arrives". Put both on one table and both risks are visible a week ahead.

The dual basis (7-day / 14-day) is the interesting design choice here. Deli raw usage has a weekly rhythm - weekend prep spikes - so a single 7-day average right after a weekend systematically overstates daily burn and cries stockout every Monday. Only materials flagged by both bases go on the alert list; when the two bases disagree, that disagreement itself is the signal (either a trend change or one bulk draw last week) and it gets its own list rather than being averaged away.

The "missing parameter" bucket defends against the model's completion reflex. Given a material with no lead time on file, the model will silently run the math on an imagined typical value and the table row will look finished - half the row fiction. An ugly, honest "missing parameter" beats a pretty guess.

Suggestions as formulas instead of numbers comes from the same place: the model does not know your order cycle or cash situation, so its "order 200 kg" has no basis - but "daily average x (lead time + safety days + order cycle) - stock - inbound" is correct, and the buyer plugs in the numbers. Direction is a formula; the number belongs to a human.

Variables

Variable Description
Current stock Available quantity per material; count if older than 24 h before running
Daily usage Trailing 7-day and 14-day columns, derived from sales and production records
Lead time Actual supplier lead days; anything missing is flagged "missing parameter"
Safety days Buffer days per material, set by how badly a stockout hurts

stockoutinventory alertpurchasing