# Verifying the method against the operator's own outputs

A captured method is a claim: "this is how the operator prices." The claim is accepted only when it
reproduces that operator's own past quotes to their own precision. A method that parses cleanly but
does not reproduce their history is not accepted. Reproduction of the operator's history is the
acceptance signal — the only one.

## The fixtures are the operator's own jobs

Verification runs the captured method against the operator's past jobs and compares the result to what
the operator actually quoted for those jobs. Those past jobs, with their own figures, are the
fixtures. They are supplied per operator and are never built into this skill — this skill carries no
business's numbers, so it carries no verification fixtures of its own. Pick jobs that exercise the
range of the method: the items, the quantity forms, the pricing forms, and the roll-up the operator's
work actually uses.

## The report is a delta, never a boolean

For each past job, report the difference between the reproduced figures and the operator's own, at
three levels: each line, each group the operator subtotals, and the final total. "Matches / does not
match" is not enough — it hides which line is wrong and by how much, which is exactly the information
needed to find the error in the captured method. A method is accepted when every delta is within the
operator's own precision; where a delta is outside it, the delta points at the entry to fix.

## What a failing reproduction tells you

A delta is a finding about the **method**, not a tolerance to widen. A wrong line total means that
item's quantity rule or pricing rule was captured wrong. A right set of lines with a wrong final total
means the roll-up sequence or a dial was captured wrong. Fix the captured method and re-run; do not
adjust the acceptance threshold to make a wrong method pass.

## Where the figures come from

The compute that turns the captured method plus a job into reproduced figures, and the rendered
documents those figures appear in, are the quote-generation flow — separate work that consumes the
method this skill produces. This pillar owns the acceptance discipline: which jobs to reproduce, that
the comparison is a per-level delta, and that reproduction to the operator's precision is the bar.
