{
  "project": "cajon",
  "title": "Cajon Family Public-Review Prototype",
  "mode": "root",
  "status": "pre-build V5 build-packet candidate",
  "date": "2026-05-18",
  "issue": "https://github.com/tonykoop/cajon/issues/1",
  "prototype": {
    "member": "CJ-S",
    "variant": "V1 finger joint",
    "snare": "Option B guitar-string snare"
  },
  "authority": {
    "fabrication_authority": "design table, OpenSCAD source, jig templates, and reviewed drawing set; measurement-gated before production release",
    "visual_register": "visual-output-register.csv",
    "non_authoritative_assets": [
      "site previews",
      "visual BOM layouts",
      "future concept renders",
      "placeholder images"
    ]
  },
  "slides": [
    "Title",
    "Project Intent",
    "Family Overview",
    "Governing Physics",
    "Critical Geometry",
    "Joinery Strategy",
    "Tapa and Screw Pattern",
    "Snare Mechanism",
    "Jig Plan",
    "BOM and Sourcing",
    "Cut List and Manufacturing Flow",
    "Drawings, CAD, CNC",
    "Validation Plan",
    "Risks",
    "Public Release Readiness",
    "Next Actions"
  ],
  "core_files": [
    "design.md",
    "family-spec.csv",
    "bom.csv",
    "sourcing.csv",
    "cut-list.csv",
    "validation.csv",
    "assembly-manual.md",
    "supplier-rfq.md",
    "drawing-brief.md",
    "visual-bom-brief.md",
    "wolfram-starter.wl",
    "risks.md",
    "photo-shotlist.md",
    "resources.md",
    "jig-decision.md",
    "validation-report.md",
    "visual-output-register.csv",
    "capstone-deck.md",
    "print-packet.md",
    "print-packet.html",
    "explorer.html",
    "site/index.html"
  ],
  "directories": [
    "drawings",
    "cad",
    "cnc",
    "jigs",
    "images",
    "data"
  ],
  "public_release_concerns": [
    "Replace placeholder visuals with real CJ-S build photos.",
    "Verify current supplier pricing and availability before recommending purchases.",
    "Confirm workbook Helmholtz cells use the corrected end correction.",
    "Mark all acoustic values as predicted until validation.csv contains measured rows.",
    "Validate snare preload, panel thickness after milling, joinery fit, and strike-response measurements before production-ready claims."
  ]
}