The supplement that went out a day late

A starter kit for writing collision repair estimates and the supplements. Make it yours, then build it with your AI.

Lost: about $90 never asked for on this car, and a day longer in the shop than it needed. An example: how it goes today

Sources: Research only
Run: Not yet
Built clean: Not yet

The capabilityWriting collision repair estimates and the supplements

Controls

What waits for a person, and what happens when it fails?

The kit says: Never: send anything to an insurer or a car owner

Make it yours: change what's different in your business

Rules from builds that went wrong

Never send a machine draft to an insurer; the estimator reads every line and sends it in the shop's name.
Put a photo and a page behind every line, so a cut line can be argued from its source.
Check each estimate against the labor guide rules of the system it was written in, never one rule set for all three.
Log every supplement's clock by insurer and flag any with no answer past its limit.

The kit's whole answer

It never: Send anything to an insurer or a car owner; decide a calibration; write into the estimating system; or add a line with no photo or page behind it.
Waits for a person: The estimator reads every list and every draft before anything is sent, and decides every calibration. The owner reads five supplements a week against the teardown photos.
It tells you when: A supplement with no answer past its limit; an estimate sent without a check; a line the insurer cut, by insurer; a VIN with no carmaker repair steps found; a calibration listed on the supplement that was not on the first estimate; the workflow not running; and the wrong-but-green count (work that looked right and passed every check, but was wrong): lines the estimator kept and the insurer paid that the technician later says the car did not need, plus operations found missing after the car went home.
When it breaks: What you see: no list on an estimate, the same line flagged on every car, or a draft for the wrong car. Check first: the estimate export still lands where the workflow reads it; the VIN is on the repair order; the access to the carmakers' repair steps is still signed in. Safe fix: turn off the workflow; the estimator writes by hand, as today.
Switching it off: Turn off the workflow in the software that runs the steps. No checks or drafts are made; the estimator writes by hand, as today. It takes under a minute. Try it once in week one.

0 of 8 answers made yours

Free for your email. Your changes go into the build prompt, and the next kit comes each weekday.

How it goes today

A family-owned collision shop is hiring an estimator to write every repair estimate and get the insurer to pay it. Here is how lines go missing and cars sit waiting, what went wrong for others who handed estimates to software, and a build that checks and drafts but sends nothing on its own.

On 14 October 2026 a family-owned collision shop in San Fernando, California listed a Collision Repair Estimator, pay not stated. The lines that carry the job: “Prepare accurate and detailed estimates for collision repair jobs, ensuring all labor, parts, and materials are accounted for” and “Liaise with insurance adjusters, including DRP partners, and customers to discuss and explain estimates, repair needs, and timelines.” In August a new estimator at another family shop asked others for help: “I want to write solid estimates, minimize supplements when possible, and make sure repairs are getting the correct labor times.” One answer: “A good writer learns how to get paid for everything. Everything.”

Here is how it goes today. On Monday morning an owner drops off a 2022 SUV hit on the front corner. The estimator walks the car and writes $3,800 from what can be seen. On Tuesday the estimator and the technician take the corner apart and find a bent radar bracket and a damaged inner fender.

The estimator writes the supplement, the second bill for the hidden damage, by hand at the car, about an hour between calls: the bracket, the radar calibration, the fender refinish, corrosion protection. Cavity wax and two clips that can only be used once never make the list. The supplement goes out Wednesday morning and the insurer approves it Thursday afternoon. The car sits apart for two days, and about $90 is never asked for.

Nobody here is careless. A first estimate written from the walkaround will always miss what is behind the panel, the same person is also ordering the parts, and each labor guide counts what a labor time includes differently. Calibrations show it: about half of them arrive on a supplement instead of the first estimate. At about 40 cars a month, the lines nobody writes down come to an estimated $5,600 a month.

The car, the damage, the times and the $90 are an example. The 40 cars a month, the minutes and the $5,600 are estimates; the $280 a car missed behind it is a review tool maker's own measure, and how much this shop leaves off is not known.

Who it needs

Answers for it: The estimator, with the shop's owner. Nobody holds this? Konstellation starts with the expertise, not the build

Runs it day to day: The estimator. Nobody to run it? A part-time operator through INSTIG8

What went wrong for others (4)

48% of shop leaders called AI estimates “often inaccurate” and 44% “not usable at all”; AI is “adding to the workload rather than reducing it”. A survey of Canadian collision shop leaders, May 2026. Read it
An insurer's central review removes “countless operations without discussion with the body shop”, and each supplement takes 10 to 14 days to come back. A shop owner at an industry meeting, as reported May 2026. Read it
Platforms count the same door replacement differently, and a shop that does not check “can end up shorting itself three to five hours”. A collision shop owner, August 2026. Read it
One shop “was on its seventh supplement on a single claim after 14 days of back-and-forth”. A parts software maker's executive, writing in October 2026. Read it

Sources (32)

Read 2 November 2026 unless a date is given.

Estimates name their figures: about 40 cars a month (sources 3, 10, 15); about 66 hours and $29,800 a year (sources 5, 13, 14, 29 and assumed minutes); about $5,600 a month (source 21 and half assumed paid); the $480,000 ceiling (source 30); the example car's calibration (source 7); about $35 a month to run (sources 27, 28); about 29 hours a month redrawn (assumed).

Next job: Repricing every maintenance agreement before it renews at a mechanical contractor of about 436 people: about 4 hours of one person's week by hand, and about $1,700 a year swung on each money-losing agreement repriced before it renews. Ask for a kit