Red Shell · Common Errors

All mistakes/Section 2: What you may not tell Model A or Model B

2.2A Leg A prompt that answers its own attachment

Fails the taskMulti-Turn - Simulator Answer Leak

The mistake

A Leg A prompt that hands Model A a file also states what the file exists to make it read, such as a count or which document is current. The same words in Leg B leak it to Model B too.

Do this instead

State the requirement and leave the value to the file, then run both legs again.

Where it happened

One real task. Each shows the spot and what it should have been; click any line to open the task there.

the words at faultthe row or field at faultmissing from the taskwhat is righta task file

Example 5Property & Space · 4 Leg A turns

What is wrongLeg A turn 2 releases IMG_4392.jpeg and tells Model A the count it exists to supply: "five big ones and one small one". Leg B turn 4 repeats it to Model B.

Leg A turn 1 holds back IMG_4392.jpeg, the plates photo. Leg A turn 2 releases it, so Model A can plan flat storage sized from it.

Where it shows

Sorted the plates, the photo is fine to use now. There are five big ones and one small one, and they need to be stored flat somewhere in the unit.

What it should have been

Sorted the plates, the photo is fine to use now. They need to be stored flat somewhere in the unit, not stood on edge.
The same corrected words, to Model B.

How it breaks the standardIMG_4392.jpeg shows one large plate by the rulers, a stack behind it and a small one; counting the stack is the read the photo exists to force. Given the count, Model A and Model B only have to measure one plate of each size. A count is a value, so this fails the task.

The rule it breaksQC spec · Multi-Turn - Simulator Answer Leak One or more user turns supply a value, count, position, or conclusion Any user turn, in either leg. A count is a value.

Catch it in your own task

Read each prompt beside the file it hands over, in both legs: any value the model should read from that file is a leak.

Where the correct guidance is written

Section titles as they print, so you can search for them in the document.

QC spec · Multi-Turn - Simulator Answer Leak

One or more user turns supply a value, count, position, or conclusion (see notes for exceptions) the agent was supposed to derive from the multimodal inputs

Any user turn, in either leg. A count is a value.

Guidelines · 7.1 What Changes from Leg A

The same intent expressed the same way, and the same persona from first turn to last.

Unchanged in Leg B, so the turn that hands Model B the file repeats the value.

Why it matters

The no leak rule covers every turn you type, in Leg A and in Leg B, and QC treats a count as a value: one of its own failing examples is “there are five receipts”. Once the value is in a prompt, the attachment is decoration: no criterion that depends on reading it can separate a run that opened the file from one that did not, for Model A or for Model B.

Every example taken apart, with the task, how it breaks the standard and what it should have been: 2.2 A Leg A prompt that answers its own attachment, in the explanations →