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Build your first AI agent from scratch in Python: a web research agent, step by step - no framework

This story is from 2026-10-26. It is preserved in the archive; the latest stories are on the live feed.

One question, eleven model calls, nine page fetches and about 1.6 cents. That is what the agent in this post spent to answer who coined the term "prompt injection" and how it differs from jailbreaking. Here is the trace it printed, unedited: step 1 | read_notes({"topic":"prompt injection jailbreaki…

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  1. 2026-10-26 11:39 · DEV Community — AI
    Build your first AI agent from scratch in Python: a web research agent, step by step - no framework

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