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no framework

4 posts tagged no framework from Building Agentic AI. Practical writing on agentic AI.

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  1. Jun 06 2026

    When to Use an Agent Framework vs Build It Yourself (LangGraph, CrewAI, and More)

    The honest answer is not "always" or "never." Build the raw loop yourself until you hit a specific named pain, then adopt a framework to solve that pain, not on principle. A decision diagram, a map of the frameworks worth knowing (LangGraph, CrewAI, AG2, LlamaIndex, OpenAI Agents SDK, Pydantic AI, plus the AWS, Microsoft, and Google platforms) and what each is good at, and the signals that tell you which side of the line you are on.

    · Beginner · 12 min read

  2. May 26 2026

    Giving Your Agent Memory: A Minimal Implementation

    "Memory" is one word for four different problems your agent has. The conversation buffer, summarization, episodic recall, semantic retrieval, and key-value preferences, each built from scratch in raw Python with no framework, plus the decision guide for which one you actually need.

    · Beginner · 12 min read

  3. May 26 2026

    Tool Calling From First Principles (Before You Touch LangChain)

    Function calling, demystified. The under-the-hood mental model of how a model "calls a tool," a 40-line runnable example with no framework, the four things that go wrong in production, and when reaching for a framework actually helps.

    · Beginner · 10 min read

  4. May 24 2026

    Build an AI Agent From Scratch in Python, No Framework

    A tutorial that builds a real AI agent in about 150 lines of Python, with no LangChain, no LangGraph, no CrewAI. Just the agent loop, two tools, memory, and bounded autonomy.

    · Beginner · 12 min read