Tool Gate · How it works
How the Scope-Gap & Division Coverage Gate gate works
How the Scope-Gap & Division Coverage Gate reads twenty divisions into one verdict: each lands in exactly one of six states, and a coverage gate forces UNCOVERED SCOPE whenever anything is uncovered or assumed - the sample reads 83% coverage and still returns UNCOVERED SCOPE, with $658,000 sitting on two divisions.
How the gate works
This tool grades every division on whether somebody is carrying it or something excludes it. It reads 20 divisions and rolls them into one verdict — the worst, never the average — and then a gate that can only make it worse.
The 20 divisions
| Division | Verdict |
|---|---|
| 01 · General Requirements | OWNED$180,000 · Self-perform, written bid |
| 02 · Existing Conditions | OUT OF SCOPEdeclared not applicable |
| 03 · Concrete | OWNED$640,000 · Redline Concrete |
| 04 · Masonry | EXCLUDEDexcluded in writing, nobody assigned |
| 05 · Metals | OWNED$310,000 · Ironworks Fabrication |
| 06 · Wood & Plastics | OWNED$95,000 · Cascade Millwork |
| 07 · Thermal & Moisture | OWNED$220,000 · Summit Roofing |
| 08 · Openings | THIN$175,000 · written bid, boundary undefined |
| 09 · Finishes | OWNED$260,000 · Interior Systems |
| 10 · Specialties | UNCOVERED$48,000 · nobody carries it, nothing excludes it |
| 11 · Equipment | OUT OF SCOPEdeclared not applicable |
| 12 · Furnishings | EXCLUDEDexcluded in writing, nobody assigned |
| 14 · Conveying | OWNED$145,000 · Vertical Transport |
| 21 · Fire Suppression | OWNED$88,000 · FireGuard |
| 22 · Plumbing | OWNED$295,000 · Meridian Mechanical |
| 23 · HVAC | OWNED$520,000 · Meridian Mechanical |
| 26 · Electricalfix first | ASSUMED$610,000 · excluded in writing AND assigned to a carrier |
| 31 · Earthwork | OWNED$340,000 · Sitework Co |
| 32 · Exterior Improvements | OWNED$126,000 · Sitework Co |
| 33 · Utilities | OWNED$190,000 · Sitework Co |
The verdict bands
Any in-scope division reading UNCOVERED or ASSUMED forces UNCOVERED SCOPE, whatever the coverage percentage says. Coverage is reported for context and can never lift a verdict — 83% covered with one division nobody carries is not 83% safe, and the rest is the part that arrives as somebody else's change order. It releases the moment every division is owned or excluded.
In the worked sample it reads UNCOVERED SCOPE — Thirteen of eighteen in-scope divisions are OWNED and two more are cleanly excluded, so coverage reads 83%. Two divisions carry $658,000 between them. Specialties has nobody on it and nothing excluding it. Electrical is worse: it is excluded in the proposal AND assigned to Voltage Partners, so two of the bidder's own documents disagree about $610,000, and whichever one is read first decides who pays. The one thing to fix first: 26 Electrical · ASSUMED, $610,000 — the largest exposure among the divisions firing the gate.
Common questions
Can every division look survivable on the How the Scope-Gap & Division Coverage gate works and the company still read UNCOVERED SCOPE?
Yes. The roll-up takes the worst of 20 divisions — never the average — then a worsen-only gate, the Coverage gate gate, escalates when trouble clusters. In the worked sample it reads UNCOVERED SCOPE because thirteen of eighteen in-scope divisions are OWNED and two more are cleanly excluded, so coverage reads 83%. Two divisions carry $658,000 between them. Specialties has nobody on it and nothing excluding it. Electrical is worse: it is excluded in the proposal AND assigned to Voltage Partners, so two of the bidder's own documents disagree about $610,000, and whichever one is read first decides who pays.
What is a worsen-only gate?
A dispositive rule that can only lower a verdict, never raise it. One fatal flaw overrides an otherwise-set of survivable lines, because a single disqualifying gap shouldn't hide behind an average of the healthy ones. The tool also names the one thing to fix first — here, "26 Electrical · ASSUMED, $610,000 — the largest exposure among the divisions firing the gate".
Grades a division register you fill in, never a person. It reads no bid, no drawing, no subcontractor quote and no contract, prices nothing, allocates no risk between parties, and does not opine on whether an exclusion is enforceable — that is fact-specific and a question for your own counsel. Not legal advice.
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<p style="font:14px/1.5 system-ui,sans-serif"><a href="https://redhub.ai/visuals/tool/scope-gap-division-coverage-gate">How the Scope-Gap & Division Coverage Gate gate works</a> — by <a href="https://redhub.ai">RedHub AI</a>, the AI that tells you when to doubt it.</p>Image + link — a static picture for any blog
<a href="https://redhub.ai/visuals/tool/scope-gap-division-coverage-gate"><img src="https://redhub.ai/visuals/tool/scope-gap-division-coverage-gate-share.png" alt="Diagram of the Scope-Gap & Division Coverage Gate: twenty construction divisions each marked owned, excluded, thin, assumed or uncovered, one electrical division flagged fix-first for being excluded in writing and assigned to a carrier at the same time, a coverage gate, and a sample verdict reading UNCOVERED SCOPE." width="760" loading="lazy" style="max-width:100%;height:auto;border-radius:16px"></a>
<p style="font:14px/1.5 system-ui,sans-serif"><a href="https://redhub.ai">RedHub AI</a> — the AI that tells you when to doubt it.</p>
This is how Scope-Gap & Division Coverage Gate works. More diagrams in the Visual Field Guide.