Podcast

How I AI: What an agent harness is and how to build one

How I AI (Lenny's network) · lennysnewsletter.com

Demystifies the harness, the code around the agent that makes it dependable.

Open on lennysnewsletter.com ↗

The question it answers

  1. Which platform or framework should I build my agents on?

Read with it

  1. The market leader maps the whole landscape, including its competitors. langchain.com Article The best AI agent frameworks in 2026 LangChain
  2. A builder-team's practical ranking of open-source options you can self-host. firecrawl.dev Article The best open source frameworks for building AI agents Firecrawl
  3. A decision-tree comparison instead of a feature dump. codebridge.tech Article LangGraph vs CrewAI vs Microsoft Agent Framework vs OpenAI Agents SDK Codebridge
  4. Current production-readiness notes on each major framework's latest release. openagents.org Article CrewAI vs LangGraph vs AutoGen vs OpenAgents Compared OpenAgents
  5. Benchmarks the same task across three frameworks so you see real differences. techsy.io Article LangGraph vs CrewAI vs OpenAI Agents SDK Techsy
  6. OpenAI's orchestration patterns apply whichever stack you choose. openai.com Guide A Practical Guide to Building Agents OpenAI
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