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Building Custom AI Agents

Designing autonomous AI assistants for complex workflows

Level 4 · Advanced

  • 13chapters in three parts
  • 15figures and screen layouts
  • 50ready-to-use instructions
  • 21day work plan
US$19 Buy now

A4 PDF, 103 pages · Edition 1 · Updated 27 September 2026

Pay once in US dollars through Lemon Squeezy, our reseller. The files are emailed to you, can be downloaded again, and content updates are free.

Language: English, with examples from across Southeast Asia.

Choosing the right work for an agent, mapping the workflow, writing system instructions, setting tools and permissions, human approval points, then testing and securing an agent before switching it on with your team.

This book is for you if

  • You are fluent with ChatGPT, Gemini, or Claude and want repetitive work to run without typing a prompt every time.
  • You lead a team, run business operations, or are tasked with tidying office workflows.
  • You are curious about n8n, Make, or Zapier and want to add AI steps to them safely.
  • You write little or no code but want to understand APIs, MCP, and agent SDKs well enough to talk to developers.

It suits you less if

  • You have never used an AI tool. Start with The 5-Minute AI Starter Kit, then AI Literacy for Everyone.
  • You are not yet used to writing prompts. The Anatomy of Prompting lays the groundwork.

What is inside

Part I · Choosing the right task

  1. 0The agent landscape as of September 2026
  2. 1Anatomy of an agent
  3. 2Agent or ordinary automation
  4. 3Mapping the workflow

Part II · Designing and building

  1. 4Good system instructions
  2. 5Tools, permissions, and connections
  3. 6Memory and context
  4. 7Human approval points
  5. 8Building on a platform

Part III · Making the agent trustworthy

  1. 9Testing the agent
  2. 10Agent security
  3. 11Running the agent with a team
  4. 12The 21-day plan

Appendices: Agent specification template; 50 ready-to-use instructions and prompts; Glossary; Fast-changing facts and a pre-release checklist.

The full shelf

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  1. The 5-Minute AI Starter KitFree17 pp
  2. AI Literacy for EveryoneUS$959 pp
  3. The Anatomy of PromptingUS$997 pp
  4. Claude MasteryUS$1479 pp
  5. ChatGPT & Gemini PlaybookUS$1494 pp
  6. AI Visual, Video & Audio ToolkitUS$14100 pp
  7. AI for Content Creators & MarketersUS$1498 pp
  8. AI for Small Business & OperationsUS$14102 pp
  9. AI for Research & Academic WritingUS$14104 pp
  10. Building Custom AI AgentsUS$19103 pp
  11. AI Ethics & GovernanceUS$19103 pp

Building Custom AI Agents

Designing autonomous AI assistants for complex workflows

Buy now