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Build a Basic AI Agent from Scratch

This article walks through building a minimal AI agent in Python without frameworks, using a local Ollama instance with gemma4. It covers the four essential components: loop, LLM connection, user input, and context memory.

SourceHacker News AIAuthor: ruxudev
Build a Basic AI Agent from Scratch
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Summary only

Under the source content permission, this page provides an editorial summary, key points, and a link to the original article.

Key points and analysis

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EngineersIntermediate

Key points

  • 2026 is the year of AI agents, with tools like Claude Code becoming essential.
  • A basic agent needs a loop, LLM client, user input, and conversation history.
  • Use Ollama locally with gemma4 model via OpenAI-compatible API.
  • Current agent is only a chatbot; future posts will add tool calling.

Highlights and analysis are generated automatically and may contain errors. Check the original source.

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