⬢github Python · 461 ★ +440 since we first saw it · pushed 2 d ago · NOASSERTION
IsuruMaduranga/harness-engineering-101
Harness Engineering 101 — building AI agents from first principles. The LLM is the brain; the harness is the body.
An open-source book and code series explaining how to build AI agents from first principles. It treats an LLM API as a stateless JSON loop and shows how every 'agent' feature — tools, context management, subagents, guardrails — is a patch to that loop, growing a ~300-line Python toy agent across 16 chapters.
Why now: It was featured on Hacker News, likely riding current interest in demystifying agent frameworks by explaining them from the ground up.
Who it is for: Developers who want to understand what agent frameworks actually do under the hood, rather than treating them as magic.
Stars over our 216 snapshots: 21 to 461, since 2 d ago.
Where people talked about it
API: https://socialmediatrends-api.osmike.com/v1/repos/IsuruMaduranga/harness-engineering-101