KiCad - the KiCad Bridge - demo/placement/fable/fable-stats.json

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John Lauer ESC demo: headline time is the wall clock from the prompt to the delivered result; charts, tables, stats and Astra prompts updated 9bef2e3 24d ago

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{
 "engine": "Claude Fable 5.1",
 "board": "ESC G431 (149 parts; 27 machine pins and contacts fixed and locked; 122 placed)",
 "desktop": "arav-rog, KiCad 10.0.3, kicad-bridge 1.0.3",
 "window": [
  "2026-09-12T18:36:07.707Z",
  "2026-09-12T20:36:39Z"
 ],
 "windowNote": "from the first placement planning to the end of the accepted take; includes a first take that was discarded (the bridge moved only footprint anchors; fixed) and a re-plan after the molecule interface was made fixed",
 "placement": {
  "commits": 21,
  "wallSeconds": 33.8,
  "partsPlaced": 122,
  "ratsnestMm": 1677.862,
  "humanRatsnestMm": 1644.5,
  "courtyardOverlaps": 0,
  "outsideOutline": 0,
  "parked": 0,
  "placementDrcErrors": 13,
  "placementDrcNote": "13 inherited from the source libraries (six malformed MOSFET courtyards, seven U2 pad clearances); zero from the placement"
 },
 "tokens": {
  "thread": {
   "input_tokens": 6974,
   "cache_creation_input_tokens": 479964,
   "cache_read_input_tokens": 176904951,
   "output_tokens": 322215
  },
  "threadTurns": 253,
  "agentLaunches": 1,
  "agents": 2,
  "agentsNote": "engineering agents that built and fixed the placement verbs during the window; bridge development, not placement",
  "withAgents": {
   "input_tokens": 11340,
   "cache_creation_input_tokens": 1816986,
   "cache_read_input_tokens": 211590579,
   "output_tokens": 493582
  }
 },
 "usdApiEquivalent": {
  "thread": 66.41,
  "withAgents": 100.4,
  "priceBasis": "claude.com/pricing 2026-09-12: Fable 5.1 $10 in, $50 out, $0.25 cache read, $12.50 cache write per MTok"
 },
 "planShare": {
  "planUsdPerMonth": 200,
  "threadPercent": 33.2,
  "withAgentsPercent": 50.2
 },
 "promptToDone": {
  "start": "2026-09-12T18:41:42Z",
  "startNote": "John: 'ok, that esc is fine'",
  "end": "2026-09-12T20:41:10Z",
  "endNote": "placed board handed over; Astra placement prompt delivered",
  "wallSeconds": 7168,
  "wallMinutes": 119.5,
  "definition": "wall clock from the human prompt to the delivered result; the headline number on the chart"
 }
}