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Never ship code reviewed only by the model that wrote it

How to use a second, different AI as an independent reviewer. The handoff that gives it enough context to be useful, the questions that catch what the author model defended, and the disagreements worth taking seriously.

Yes, I want a real second opinion before shipping — Only $6.50See sample prompts

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cat problem.md
A terminal session that drifted across seven files

Sound familiar?

Asked it to check its own work and got a compliment?

Ask any model to review something it just produced and it will explain, clearly and confidently, why the approach was sound. It is not lying. It is reasoning from the same assumptions that produced the code, so the mistake is invisible from inside.

A second model, given the diff cold and no stake in the approach, reads it as evidence rather than as a conclusion it already reached. That change in position is what makes the review useful.

ls prompts/ | head -3

Sample pages

How the handoff works

Fourteen prompts for the reviewing model, with the context package each one needs and what a useful answer looks like.

review 01

Briefing the second model

The Cold Handoff

You did not write this. Here is the diff, the task it was meant to solve, and the constraints. Assume the author was overconfident.

Use whenEvery meaningful diffPairs withThe Defect Hunt
review 05

Getting past the compliments

The Defect Hunt

Do not summarise what this does. Name up to three things that are wrong, ranked by blast radius. If nothing is wrong, say so in one line.

Use whenAfter the handoffPairs withThe Cold Handoff
review 12

Two models disagreeing

The Tiebreak

Model A says X, model B says Y. Which claim is checkable against the repo? Check it, and tell me who is right and how you verified.

Use whenConflicting reviewsPairs withThe Defect Hunt

14 in total inside the guide

Every prompt is dated, tested on a real repository, and carries a plain note on when not to use it.

cat contents.md

What's inside

Here's exactly what's covered

  • How to hand off a diff to a second model without losing the context
  • Asking review questions that surface defects instead of compliments
  • Judging which disagreements between two models actually matter
  • How to avoid the trap of both models agreeing on the same mistake
  • Keeping the second opinion cheap enough that you actually use it
contents
01 Why Self-Review Fails
02 The Handoff Package
03 Review Prompts That Bite
04 Reading Disagreement
05 When Both Are Wrong
06 Keeping It Cheap
why --verbose

Why a second opinion catches more

A model reviewing its own work defends its own reasoning. A model seeing it cold has no position to protect.

No Position To Defend

A reviewer that did not write the code has no investment in the approach, which is exactly what makes the review worth reading.

Different Blind Spots

Two different models fail differently. Where their answers diverge is a remarkably good map of where to look closely.

Cheap Enough To Use

A method small enough to run on every meaningful diff, because a verification step you skip protects nothing.

grep -n 'is this for me'

This is for you if

  • You ship code an AI wrote and review it with the same AI
  • You already pay for more than one AI tool
  • You have merged something that looked right and was not

This is not for you if

  • You have no second tool and no intention of getting one
  • You want automated CI review — this is a manual method
Yes, I want a real second opinion before shipping — Only $6.50

$6.50 · one-time · instant access

PDF

What you get

The Second-Opinion Stack — 40-page guide (PDF)

Using a second, independent AI to review work before it ships.

  • 40 pages6 chapters, 2026 Edition
  • 14 promptsExact wording, ready to paste
  • Instant accessEmailed the moment you buy
  • Any deviceRead on desktop, tablet or print

Pages shown are from the actual guide. Digital product (PDF) — no physical item and no software licence is included.

The model that wrote the bug is the worst possible reviewer of it.

The Second-Opinion Stack is the protection layer. It is a practical method for routing work through a second, independent AI before it ships, with the handoff that carries enough context, the review questions that surface real defects, and a plain rule for deciding which disagreements are worth your time.

US$6.50one-time
Yes, I want a real second opinion before shipping — Only $6.50

Instant digital download. One-time payment of $6.50, billed securely by Digistore24. Educational material only. Results depend on your project, your model and how you apply it. Independent publication, not affiliated with or endorsed by any AI vendor.

man faq

Frequently asked questions

Is this a physical book or a digital product?

It's a digital guide (PDF). Right after purchase you get an email with a secure link to download it instantly. Nothing is shipped.

Is this official, or connected to Anthropic?

No. Terminal Craft is an independent publisher with no affiliation to, endorsement from or sponsorship by Anthropic or any other AI vendor. Claude and Claude Code are trademarks of Anthropic PBC. This guide is our own field notes on using those tools well.

Does this include software, a licence or a subscription?

No. You need your own tools and your own account. This is written material: prompts, patterns and workflows you paste into whatever you already use.

AI changes constantly. Will this be out of date next month?

Every guide is dated on the cover as the 2026 Edition, and each one includes a chapter on what tends to change between versions and how to adapt a prompt when it does. The patterns outlast the version numbers; the specific outputs will not, and we say so plainly rather than pretending otherwise.

Do I need to be an experienced developer?

You need to be comfortable running a coding agent on your own project. The prompts are written in plain English and explained, but they assume you already have a codebase you're working on.

What if it isn't for me?

You're protected by a 60-day money-back guarantee. If it doesn't help, email us within 60 days for a full refund. No questions asked.

Add a reviewer that didn't write the code

Get the handoff method, the review prompts and the tiebreak rule. Stop shipping work checked only by its own author.

Yes, I want a real second opinion before shipping — Only $6.50

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