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The cover, which is page 1 of the PDF and the first page of the flipbook.
Pages 22 and 23: a logged run of the refund example with its three model calls, three tool calls and $0.0049 cost, and the chart of how much is resent at each of twelve steps.
Page 99: the six main risks placed by likelihood and impact. The caption under the figure states that the placements are a judgement, not a measurement.
Page 4, the contents: 15 chapters in five parts, then glossary, quick reference, sources, about and index, with page numbers.
The offline flipbook open at page 126 of 163, with the Contents button, Back and Next, and the page slider.
What the download holds: 17 files in one folder, counted from the shipped ZIP. The pages shown are 1, 85 and 115.
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AI Agents Explained for Founders (2026 Edition)

Everyone is talking about AI agents.

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About this product

Everyone is talking about AI agents. This book helps a founder decide what to build on Monday, what it will cost, and what has to be true before it touches a customer. 163 pages, 77 original diagrams and charts, 15 chapters in five parts, and two working code examples you can run on your own machine.

What's included

  • PDF, 163 pages, 6 x 9 inches, cover as page 1, contents with page numbers, and a glossary, a quick reference and an index at the back.
  • EPUB 3 for e-readers and phones. Text reflows; all 77 figures are included. Validated with epubcheck 3.3: 0 errors, 0 warnings, 0 info.
  • Offline HTML flipbook, one file, works in any modern browser with no internet connection. Tap, swipe, arrow keys, Next and Back buttons, a page slider, and a Contents panel that jumps to any chapter.
  • Example 1, inbox triage, a workflow: the model labels each message, plain code routes it. Labels that fail the checks go to a person.
  • Example 2, refund desk, an agent: three tools, a step limit, a spending limit and a human approval queue. The refund tool enforces the policy itself, so a confused model cannot push through a refund the policy forbids.
  • A cost calculator you can edit for your own idea, and an example Skill (support reply style).
  • Uses Anthropic's official SDK, Claude Haiku 4.5 by default, with a model picker. You need your own Anthropic API key. Each run prints its exact cost: when both examples were run against the real API on 22 September 2026, the whole run cost 1.46 US cents at list prices.

File formats

  • PDF, for reading on a laptop or tablet and for printing
  • EPUB 3, for e-readers and phone reading apps
  • An offline HTML flipbook that turns pages by tap, swipe or arrow key, in any browser
  • Delivered as one ZIP (17 files)

Works with

  • A PDF reader, any EPUB reader, or any web browser for the flipbook
  • Node.js 20 or newer, only if you want to run the two code examples
  • Your own Anthropic API key for those examples. Anthropic bills you directly and the key is not included

Licence

Personal use by one person or one business; no redistribution of the book, the flipbook or the example code. The example code in code/ may be used, changed and built on inside your own business or products, with no credit required. Full terms in LICENSE.md inside the download. Seller: CodeUpVik.

Questions

How do I get my file?

Right after payment you see a Download button on the payment page. Each link works for 10 minutes, so save the file straight away. If a link expires, write to us with your order ID for a new one.

Can I get a refund?

Digital products are final sale. If a download does not work, email us within 7 days of purchase with your order ID and a short screen recording. We send a working file within 2 working days, or refund you in full if we cannot. Read the refund policy

Is anything shipped?

No. Every product is a digital download. Nothing physical is shipped.

Is the payment secure?

Yes. Payments in India are processed by Cashfree, and payments from outside India by PayPal, each on its own secure checkout. We never see or store your card or bank details.

Paid, but no download?

Write to us with the order ID shown on the payment page and we will sort it out. [email protected]

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