FIELD NOTE · COMMITMENT

Paying twice for scope you already bought

A change order can share real words with a line you already committed to — without either side being wrong yet.

What it reads
Every open change order's own title and description, and every verified committed line — a subcontract scope line or a priced commitment-letter line.
What triggers it
The change order shares two or more significant words with a committed line, or one rare, long, trade-specific word.
What it needs from you
A human decision. The candidate is not a finding — it is not evidence anyone was billed twice.
Every figure, date, and party in this article is illustrative — drawn from a fictional "Project A" case built to be realistic, not a real client, GC, or project.

Nothing on the log changes. One layer gets added.

This is Project A's real change-order log. Flip the layer on — the rows do not move.

What you already see

Project A change-order log — without the cross-reference layer
COTitleAmountStatus
CO #044Level 1 wayfinding, added directory and code signage$71,250Illustrative figureapproved
CO #041Acceleration and premium time to recover elevator equipment release$208,750Illustrative figuredisputed
CO #046Additional hoistway entrance door protection and sill infill at levels 2–4 during construction phasing
$38,900Illustrative figurepending

With the cross-reference on

Project A change-order log — with the cross-reference layer
COTitleAmountStatus
CO #044Level 1 wayfinding, added directory and code signage$71,250Illustrative figureapproved
CO #041Acceleration and premium time to recover elevator equipment release$208,750Illustrative figuredisputed
CO #046Additional hoistway entrance door protection and sill infill at levels 2–4 during construction phasing

↳ reads as inside a committed line — $214,600Illustrative figure already agreed for "Furnish and install hoistway entrance frames, sills and doors at all landings"

$38,900Illustrative figurepending

The exhibits

Four exhibits, in the order the check assembles them. The last one does not resolve anything — that is the point.

The change order

A pending change order for hoistway entrance door protection and sill infill at levels 2–4.

CO #046, issued against Project A: "Additional hoistway entrance door protection and sill infill at levels 2–4 during construction phasing."

CO #046, claimed$38,900Illustrative figure

The committed line

A verified line in the executed subcontract already covers hoistway entrance frames, sills and doors at all landings.

A verified line in the executed subcontract’s priced scope: "Furnish and install hoistway entrance frames, sills and doors at all landings."

Verified, agreed$214,600Illustrative figure
CO #046, claimed$38,900Illustrative figure

The overlap

Four significant words appear on both sides: hoistway, entrance, sill, door.

Normalized and compared the same way on both sides: hoistway, entrance, sill(s), door(s). Two or more shared significant words is enough on its own to raise the candidate — and enough is all it is.

The change order

  • hoistway
  • entrance
  • door
  • sill

The committed line

  • hoistway
  • entrance
  • sills
  • doors
The same four words appear in both lines, in different places — each line is drawn as one box per word, and the four orange ones are those four.

The result

Two or more shared significant words. That raises a candidate — and stops there.

The amounts are not close, and that never mattered to whether this raised. Amount proximity only ever ranks candidate lines against each other — it never decides whether one exists.

Committed line, agreed$214,600Illustrative figure
CO #046, claimed$38,900Illustrative figure

Difference: $175,700Illustrative figure vs. the committed line — context, not proof. Amounts may legitimately differ.

The ladder stops here. Nothing above it resolved anything.

The check, in full

Two texts, normalized the same way, compared for the words they share.

CO #046 · claimed

Additional hoistway (shared word) entrance (shared word) door (shared word) protection and sill (shared word) infill at levels 2–4 during construction phasing

The committed line · verified

Furnish and install hoistway (shared word) entrance (shared word) frames, sills (shared word) and doors (shared word) at all landings

Shared, after both sides are normalized the same way

hoistway
rare · long · enough alone
entrance
ordinary
sillsills
ordinary
doordoors
ordinary
Two texts, normalized the same way, share four words — and one of them is rare enough to count on its own.
  1. Both sides are normalized identically: lower-cased, punctuation stripped, common words and words under three characters dropped.
  2. It raises a candidate when the change order and a line you already committed to share two significant words, or one rare, long, trade-specific word.
  3. It only ever looks at lines a human has verified. Unverified extractions are not compared.
  4. When several committed lines could match, closeness of amount decides which one is shown first. It never decides whether to raise the candidate at all — a legitimate amount mismatch is the entire scenario.

What does NOT trigger it

  • A change order that shares only common construction vocabulary.
  • A line that has not been verified.
  • A change order that is void, rejected, or terminated.

This is a deterministic check — the same inputs produce the same result every time. No model decides it.

What this does not do

It does not decide
It puts the two figures side by side. It does not tell you which one is right, and it will not.
The blind spot
Word overlap is not scope identity. A genuinely new change order can share vocabulary with a line you already bought, and this will raise it. The strongest thing the product says here is the thing it actually ships: this reads as inside an existing commitment. That is a reason to look, not a finding of double payment.
The precondition
It only ever looks at lines a human has verified — an unverified extraction is not compared, and it never will be.
No score
There is no confidence percentage anywhere in this, because a number shaped like evidence is not evidence.

Your call

The committed line, agreed$214,600Illustrative figure
CO #046, claimed$38,900Illustrative figure
Difference$175,700Illustrative figurecontext, not proof — amounts may legitimately differ.

These may be two different pieces of work. Ask for a scope map before you approve it.

What the rep does next

The owner's rep asks the GC for a scope map showing exactly which levels and elements CO #046 covers, before the change order is approved.

See it run on one of your projects.

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