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Understanding

$ open which-ai-for-which-job.md

Stop using one AI for every single job

A practical way to work out which kind of AI suits which task. The four job types that cover almost everything you do, how to test a tool on your own work in an afternoon, and how to stop paying for six overlapping subscriptions.

Yes, I want the right tool for each job — Only $4.80See sample prompts

Price: $4.80 · one-time payment · instant access

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

Sound familiar?

Paying for five AI tools and using one out of habit?

Most stacks are archaeological rather than designed. A tool was good in March, another was recommended in June, a third came bundled with something else. Now there are five subscriptions and one of them does ninety per cent of the work regardless of whether it suits the task.

The fix is not more comparison articles. It is sorting your own work into a handful of job types and testing candidates on tasks where you already know what the right answer looks like.

ls prompts/ | head -3

Sample pages

How the matching works

Sort, test, then match. Three steps that turn a pile of subscriptions into a short, deliberate stack.

step 01

Classifying your week

The Job Sort

For one week, tag every AI task as: generate, transform, verify, or explore. The distribution usually surprises people.

Use whenBefore changing anythingPairs withThe Bench Test
step 03

Testing on your own work

The Bench Test

Take three real tasks you already know the right answer to. Run them through each candidate tool. Score only correctness and rework.

Use whenEvaluating any toolPairs withThe Job Sort
step 07

Cutting the subscription pile

The Overlap Audit

List every AI tool you pay for and the one job each is uniquely best at. Anything without a unique job is a cancellation.

Use whenQuarterlyPairs withThe Bench Test

8 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 you'll work out

  • How to sort your work into the four job types that actually matter
  • Testing a tool on your own tasks instead of trusting a benchmark
  • Matching each job type to the kind of tool that suits it
  • Knowing when a cheaper or smaller model is genuinely the right call
  • Cutting the overlapping subscriptions you stopped noticing you pay for
contents
01 The Four Job Types
02 Sorting Your Own Week
03 The Bench Test
04 Matching Jobs To Tools
05 When Smaller Is Better
06 The Overlap Audit
why --verbose

Why matching beats loyalty

Most people pick one tool and force everything through it, then conclude AI is disappointing at the half of their work it was never suited for.

Four Job Types

Generate, transform, verify, explore. Almost everything you do is one of these, and they want genuinely different things.

Tested On Your Work

A one-afternoon procedure using tasks you already know the answer to, which beats any published benchmark for your purposes.

Fewer Subscriptions

An audit that names what each tool is uniquely best at — and makes the cancellations obvious rather than agonising.

grep -n 'is this for me'

This is for you if

  • You pay for several AI tools and mostly use one
  • You suspect you are using the wrong tool for half your work
  • You want to decide on evidence from your own tasks

This is not for you if

  • You are happy with one tool and have no overlap to cut
  • You want a ranked list of products — this teaches you to test, not what to buy
Yes, I want the right tool for each job — Only $4.80

$4.80 · one-time · instant access

PDF

What you get

Which AI For Which Job — 38-page guide (PDF)

Sorting your work into job types and matching each to the tool that suits it.

  • 38 pages6 chapters, 2026 Edition
  • 8 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 tool that writes your code is rarely the tool that should plan it.

Which AI For Which Job is the personalisation layer. Four job types cover nearly everything you do, a one-afternoon test tells you how a tool performs on your work rather than on a benchmark, and matching tables turn all of it into a short, deliberate stack.

US$4.80one-time
Yes, I want the right tool for each job — Only $4.80

Instant digital download. One-time payment of $4.80, 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.

Build a stack instead of a habit

Get the job types, the bench test and the matching tables. Choose each tool on purpose rather than by momentum.

Yes, I want the right tool for each job — Only $4.80

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