What does it do?
It is a blog series published as a book about building AI agents from first principles. [1] It explains a harness as the program that builds, maintains, and protects the JSON conversation array sent to a stateless LLM API. [2] The series develops this idea across 16 chapters by growing a roughly 300-line toy agent in plain Python. [3]
Activity, over time
Daily GitHub activity and social mentions.
Mentions
Daily posts linking to this repository
Attention
Daily stars & forks
Star accumulation
Cumulative stars
Pull requests
Daily opens & merges
Conversations
Daily issues & comments
Community
Daily accounts & reviews
Trending history
Daily top 10 · last 90 days · UTC
Mentions
Stars
Forks
Contributors
Latest stargazers
The last 10 distinct accounts we observed this year.
Most active participants
PR, issue, comment & review events in the past year.
Packages
No packages found.
Live mentions badge
Show how many posts mention your project in the last 30 days.
Live mentions · last 30 days
Mentions
Every agent framework wraps one JSON array. Learn it! harness-engineering-101: open source MIT code. You build a ~300-line agent. Source: IsuruMaduranga/harness-engineering-101 (October 2026) Which framework did you adopt before learning the loop? #AIAgents #OpenSource
Harness Engineering 101: The LLM is the brain, the harness is the body IsuruMaduranga/harness-engineering-101 (news.ycombinator.com)
This is a practical guide to building the the harness that turns raw LLMs into functional agents. Written for developers and AI engineers who want full control over their code. It covers the essential mechanics of agentic systems. IsuruMaduranga/harness-engineering-101
Harness Engineering 101: The LLM is the brain, the harness is the body
📰 Hacker News (AI) Harness Engineering 101: The LLM is the brain, the harness is the body IsuruMaduranga/harness-engineering-101 #IA #AI #ML
Harness Engineering 101: The LLM is the brain, the harness is the body [Discussion]
Harness Engineering 101: The LLM is the brain, the harness is the body IsuruMaduranga/harness-engineering-101 (news.ycombinator.com)
Harness Engineering 101: The LLM is the brain, the harness is the body
Harness Engineering 101: The LLM is the brain, the harness is the body
Harness Engineering 101: The LLM is the brain, the harness is the body | Discussion