Construction Drawings · Takeoff

Takeoff Trust Engine

A precision drafting instrument for construction estimators. Detect, derive, and decide — with raw evidence kept immutable and every quantity carrying a colorblind-safe trust band.

prototype · screen 0
static HTML / CSS / vanilla JS
project Vision House
revision Rev 3 · brain v3
Trust bands · colorblind-safe (shape + label)
Trusted Verify Must-review Unverifiable
Four layers · never collapsed (Decision G)
DrawingL1 · PDF Kamai-RAWL2 DerivedL3 FinalL4
Dual overlay · raw vs derived
RAWsolid · square
DERIVEDdashed · hatch · round
Information architecture · project → revision → run
TOP BAR  Takeoff Trust Engine   Project ▾   Revision ▾ (set-rev · sheet-rev · Kamai job · brain-rule)   [Revision-diff]   actor ▾
─────────────────────────────────────────────────────────────────────────────────────────────────────────────
LEFT NAV                  MAIN WORKSPACE (route-driven)
  ● Upload          1  Upload / New Project        U3 · U1 · Decision G
  ● Run             2  Run View (live execution)   U8 · U9 · U14
  ● Review ▾         3  Sheet Viewer                U10 SourceOverlay · U12 · Decision G
    ─ Sheets        4  Takeoff Table + Export      U10 TakeoffTable/Export · R7
    ─ Table         5  Item Trust Detail (drawer)  U7
    ─ Flags         6  Merge Review                U4 · U14 · Decision G
    ─ Merges        7  Discrepancy Panel           U10 DiscrepancyPanel · U9 · R6 · U14
    ─ Discrepancies 8  Flags Panel                 U10 FlagsPanel · U5 · U9 · R3
  ● Closure         9  Closure Panel               U9 · R6  (gated · coverage invariant)
  ● Graph           10 Graph View                  U10 GraphView · KTD6
  ● Audit           11 Audit Panel                 U1 · U9 · U14
  ● Validation      12 Validation Report           U13  (sets band cut-points)
12 screens · contact sheet
click any card to open