Drive Was Price from your own code

{ "ok": true,  "data":  { ... } }
{ "ok": false, "error": { "code": "...", "message": "...", "status": 402, "details": { ... } } }

{
 "task": "verdict",
 "item": "Robot vacuum with mop pad",
 "store": "big-box store",
 "currency": "$",
 "deal_price": 199,
 "was_price": 349,
 "seen": "2026-10-19",
 "ends": "Sunday",
 "need": "need",
 "cap": 250,
 "copy": "Early Black Friday deal! Was $349, now $199.\nDeal ends Sunday. Free returns within 30 days.",
 "prices": "2026-04-18 | 349 | big-box store | launch price\n2026-05-30 | 299 | big-box store\n... 6 more lines",
 "facts": "[{\"id\": \"F-deal\", \"text\": \"Deal: $199 at big-box store, seen 2026-10-19; the store's 'was' price is $349 - 43% off as advertised.\"}, {\"id\": \"F-history\", \"text\": \"8 earlier prices recorded, 2026-04-18 to 2026-10-12 (5 in the 90 days before the deal, 3 in the last 30).\"}, {\"id\": \"F-low\", \"text\": \"Lowest price recorded: $229 on 2026-07-11 at online marketplace. The deal is $30 (13%) below it.\"}, \"... 9 more facts\"]"
}

{
 "task": "verdict",
 "verdict": "buy_now",
 "verdict_why": "At $199 you're $30 below the lowest price ever recorded for this item and $51 under your $250 cap, and you marked it a need - that's as good as this item gets no matter what the 'was' price claims.",
 "title": "Robot vacuum with mop pad",
 "honest_discount": {
  "percent": 29,
  "against": "30-day low",
  "note": "Against the lowest price seen in the 30 days before the sale, $199 is a real 29% cut, well short of the store's claimed 43% off.",
  "cite": [
   "F-30d",
   "F-deal"
  ]
 },
 "anchor": {
  "rating": "stretched",
  "note": "The $349 'was' price only shows up once, at the launch price back in April, and never appears in the 90 days before this sale.",
  "cite": [
   "F-anchor"
  ]
 },
 "tactics": [
  {
   "id": "T1",
   "pressure": "medium",
   "decoded": "The countdown wants you to decide before Sunday instead of comparing prices. It doesn't change the fact that $199 is already below every price on record for this item.",
   "counter": "Decide on the price itself, not the clock - you don't need to rush a price this good.",
   "cite": [
    "F-T1",
    "F-deal"
   ]
  },
  {
   "id": "T2",
   "pressure": "high",
   "decoded": "Quoting $349 as the 'was' price wants $199 to look like a massive cut. That price was only charged once, at launch, and hasn't shown up again in the months before this sale.",
   "counter": "Judge the deal against the recent prices in the $270s-$290s, not the old $349 tag.",
   "cite": [
    "F-T2",
    "F-anchor"
   ]
  },
  "... 1 more"
 ],
 "wait_plan": null,
 "walk_away_price": 250,
 "checks": [
  "Confirm the robot vacuum with mop pad at checkout is the exact model behind the prices you've seen before, not a different variant.",
  "Check that the 'free returns within 30 days' mentioned in the promo really applies to this item before you buy.",
  "... 1 more"
 ],
 "caveats": [
  "The store's 43% off claim is measured against the $349 price, which was only charged once, months before this sale."
 ]
}

{
 "task": "verdict",
 "item": "6-quart air fryer",
 "store": "online marketplace",
 "currency": "$",
 "deal_price": 89.99,
 "was_price": 159.99,
 "seen": "2026-10-19",
 "ends": "in 2 hours",
 "need": "want",
 "cap": 90,
 "copy": "Flash deal - ends in 02:14:33.\nOnly 4 left at this price! Compare at $159.99.\nEarly Black Friday pricing, 44% off.",
 "prices": "2025-11-28 | 79.99 | online marketplace | last Black Friday\n2026-01-10 | 99.99 | online marketplace\n... 6 more lines",
 "facts": "[{\"id\": \"F-deal\", \"text\": \"Deal: $89.99 at online marketplace, seen 2026-10-19; the store's 'was' price is $159.99 - 44% off as advertised.\"}, {\"id\": \"F-history\", \"text\": \"8 earlier prices recorded, 2025-11-28 to 2026-10-08 (4 in the 90 days before the deal, 2 in the last 30).\"}, {\"id\": \"F-low\", \"text\": \"Lowest price recorded: $79.99 on 2025-11-28 at online marketplace. The deal is $10 (13%) above it.\"}, \"... 11 more facts\"]"
}

{
 "task": "verdict",
 "verdict": "wait",
 "verdict_why": "This air fryer sold for $79.99 as recently as last Black Friday, 13% below today's $89.99 price, and the price climbed 22% in the 30 days before this sale. The $159.99 'was' price was never actually charged, so the 44% off claim isn't measured against a real price.",
 "title": "6-Quart Air Fryer",
 "honest_discount": {
  "percent": 25,
  "against": "30-day low",
  "note": "Against the $119.99 low price from the 30 days before the sale, $89.99 is a real 25% discount.",
  "cite": [
   "F-30d"
  ]
 },
 "anchor": {
  "rating": "fiction",
  "note": "The $159.99 'was' price never shows up in the recorded prices - not in the 90 days before, and not in the year before.",
  "cite": [
   "F-anchor"
  ]
 },
 "tactics": [
  {
   "id": "T1",
   "pressure": "medium",
   "decoded": "The countdown wants you to decide before you have time to compare prices, as if the deal is about to vanish.",
   "counter": "Pause and check the recorded prices before the clock runs out.",
   "cite": [
    "F-T1"
   ]
  },
  {
   "id": "T2",
   "pressure": "medium",
   "decoded": "'Only 4 left' wants you to fear missing out, but there's no way to confirm the real stock count from here.",
   "counter": "Don't let a stock claim rush you - judge the price on its own.",
   "cite": [
    "F-T2"
   ]
  },
  "... 2 more"
 ],
 "wait_plan": {
  "target_price": 79.99,
  "watch": "Watch for the price to drop back to $79.99, which is what it sold for last Black Friday.",
  "recheck": "Check again when the real Black Friday sale this 'early' pricing is previewing arrives.",
  "cite": [
   "F-low",
   "F-hike",
   "F-30d"
  ]
 },
 "walk_away_price": 79.99,
 "checks": [
  "Make sure this is the same 6-quart size as the one that sold for $79.99 before.",
  "Check whether the 'only 4 left' stock count is something you can verify before paying.",
  "... 1 more"
 ],
 "caveats": [
  "Only 2 of the 8 recorded prices are from the last 30 days, so the 30-day low is based on limited history."
 ]
}

{
 "task": "verdict",
 "item": "Fitness smartwatch, 41 mm",
 "store": "the maker's own site",
 "currency": "$",
 "deal_price": 279,
 "was_price": 399,
 "seen": "2026-10-19",
 "ends": "today only",
 "need": "impulse",
 "cap": 200,
 "copy": "LOWEST PRICE OF THE YEAR! Compare at $399, now $279.\nFree sport band ($49 value) - today only. Selling fast.\nOr pay in 4 payments of $69.75.",
 "prices": "2026-05-14 | 279 | the maker's own site\n2026-06-21 | 279 | the maker's own site\n... 5 more lines",
 "facts": "[{\"id\": \"F-deal\", \"text\": \"Deal: $279 at the maker's own site, seen 2026-10-19; the store's 'was' price is $399 - 30% off as advertised.\"}, {\"id\": \"F-history\", \"text\": \"7 earlier prices recorded, 2026-05-14 to 2026-10-11 (4 in the 90 days before the deal, 2 in the last 30).\"}, {\"id\": \"F-low\", \"text\": \"Lowest price recorded: $259 on 2026-07-19 at online marketplace. The deal is $20 (8%) above it.\"}, \"... 12 more facts\"]"
}

{
 "task": "verdict",
 "verdict": "skip",
 "verdict_why": "At $279 this is the price the maker's own site has charged repeatedly since May, not a special low, and it is $79 over your $200 cap. The $399 it is compared against was never actually charged, and you marked this as an impulse buy, so the pressure around it is not backed by a real deal.",
 "title": "Fitness smartwatch",
 "honest_discount": {
  "percent": 0,
  "against": "30-day low",
  "note": "The deal matches the lowest price charged in the 30 days before the sale, so there is no real discount against the most recent price the store actually used.",
  "cite": [
   "F-30d"
  ]
 },
 "anchor": {
  "rating": "fiction",
  "note": "The $399 'was' price was never recorded in the 90 days before the sale or anywhere in the year of history shown.",
  "cite": [
   "F-anchor"
  ]
 },
 "tactics": [
  {
   "id": "T1",
   "pressure": "medium",
   "decoded": "Wants a fast yes before you can compare; this same price has shown up repeatedly over the past several months, so 'today only' is about urgency, not a one-time price.",
   "counter": "Check the price history before deciding - a price that repeats often isn't a one-day event.",
   "cite": [
    "F-T1",
    "F-30d"
   ]
  },
  {
   "id": "T2",
   "pressure": "medium",
   "decoded": "Wants fear of missing out to skip the comparison step; nothing in the recorded facts can confirm stock is actually low.",
   "counter": "Don't let a stock claim rush the decision - weigh the price and your cap first.",
   "cite": [
    "F-T2"
   ]
  },
  "... 4 more"
 ],
 "wait_plan": null,
 "walk_away_price": 200,
 "checks": [
  "Confirm this listing is the same 41 mm model as the prices you've recorded, not a different size.",
  "Check the 4-payment plan for any added fee - the four payments alone total the full $279.",
  "... 1 more"
 ]
}

const K = DealKit;
const { deal } = K.parseDeal([
  "Item: 6-quart air fryer", "Deal: 89.99", "Was: 159.99", "Seen: 2026-10-19", "Need: want", "Cap: 90",
  "Promo: Flash deal - ends in 02:14:33. Compare at $159.99.",
  "2026-08-05 | 99.99 | online marketplace", "2026-10-08 | 129.99 | online marketplace"
].join("\n"));
const { input } = K.buildInput(deal);
const wire = K.toWire(input);        // POST this to /estimate and /run
// later: const n = K.normalize(K.parseReply(job.output.output));
// const { notes } = K.checkReply(n, deal);

BASE="https://api.skillsafe.ai/v1/app-api"
TOKEN="paste-your-token-here"   # from https://was-price.skillsafe.ai/tokens.html
api() { # api METHOD PATH [JSON-BODY]
  curl -s -X "$1" "$BASE$2" -H "Content-Type: application/json" \
    ${TOKEN:+-H "Authorization: Bearer $TOKEN"} ${3:+--data "$3"}
}

# a guest token (enough for /me and /estimate); a run needs your personal token from /tokens.html
TOKEN=$(curl -s -X POST "$BASE/guest" -H "Content-Type: application/json" -d '{"slug":"was-price"}' | jq -r '.data.token')

api GET /me | jq '.data | {subject_type, credits}' 

# input.json: the run input object - {"task": "verdict", "item": "...", "deal_price": 89.99, "was_price": 159.99, "seen": "2026-10-19", "need": "want", "cap": 90, "copy": "...", "prices": "2026-09-25 | 119.99 | ...", "facts": "[...]"}
api POST /estimate "$(cat input.json)" | jq '.data | {hold_credits, min_credits, model, model_alias, markup_bps, warnings}' 

KEY="was-price:verdict:$(shasum -a 256 input.json | cut -c1-16):a1"
JOB=$(curl -s -X POST "$BASE/run" -H "Content-Type: application/json" -H "Authorization: Bearer $TOKEN" \
  -H "Idempotency-Key: $KEY" --data @input.json | jq -r '.data.job_id')
while :; do
  J=$(api GET "/jobs/$JOB"); S=$(echo "$J" | jq -r '.data.status')
  case "$S" in succeeded|failed|cancelled) break;; esac; sleep 2
done
echo "$J" | jq -r '.data.output.output' > reply.json   # one JSON object, the reply contract
echo "$J" | jq '.data | {charged_credits, truncated}' 

# Server-Sent Events: tick/delta events while the job runs, then a final event with the job
curl -N -s -X POST "$BASE/run-stream" -H "Content-Type: application/json" -H "Authorization: Bearer $TOKEN" \
  -H "Idempotency-Key: was-price:verdict:$(shasum -a 256 input.json | cut -c1-16):a1" --data @input.json