Hanbit Media to publish AI agent design guide on October 30
The 312-page book by a Toss frontend platform tech lead costs 26,000 won and covers building agents without frameworks, according to aitimes.com.
Hanbit Media said it will publish 『문제 해결을 위한 AI 에이전트 설계』 on October 30, 2026, according to aitimes.com. The book runs 312 pages and carries a list price of 26,000 won; its ISBN is 9791175791206.
The author, 이선협, works as a frontend platform tech lead at Toss. The book walks through examples built without frameworks, including a puzzle generator, a text adventure game, an English conversation practice agent and an automated research agent.
Reliability, cost and security
Part 3 of the book covers retries and timeouts, response format validation, cutting costs through tokens and caching, prompt injection and permission management, sandbox security, and methods for regression evaluation.
The final chapter, chapter 16, assembles a coding agent.
Youngpoong Bookstore, which opened in Jongno in 1992 and now runs 46 branches nationwide plus an online store, is among the retailers named in the announcement.
Quick answers
When is 『문제 해결을 위한 AI 에이전트 설계』 released?
Hanbit Media scheduled the release for October 30, 2026.
How much does the book cost?
The list price is 26,000 won for 312 pages.
Who wrote the book?
이선협, a frontend platform tech lead at Toss.