decodingai-magazine/building-a-coding-agent-from-scratch-course
Resource
Can I trust it?
No red flags in our checks.
Stars from real accounts No data
We haven't checked its stars for fakes yet.
Active OK
Last change 3 days ago.
Licence OK
Apache-2.0: you can use it for free, also in a commercial product. Keep the licence notice.
Quick checks from public data. They help, but they are no guarantee.
What it is
A free, open-source course that teaches harness engineering by building a coding agent similar to Claude Code, from a basic agent loop to remote cloud agents. It covers tools, permissions, sandboxing, context management, subagents and evals, delivered as 8 articles, 6 videos and…
Who it's for
Python developers who want to build AI coding agents or agent harnesses from scratch
How to use it
Install
make installFrom its README. Check it there before running it.
Ask your AI to set it up
Paste this into Claude, ChatGPT or your coding assistant.
Help me install and set up decodingai-magazine/building-a-coding-agent-from-scratch-course in my project. Follow its README: https://github.com/decodingai-magazine/building-a-coding-agent-from-scratch-course. Explain each step and check it is safe before running anything.
Star curve
Get alerts for repos like this
We'll email you when something in AI agents starts rising. Free, once a week, only what matches.
21,411 GitHub repos watched and ranked every hour. Figures as of 27 October 2026.
What arrives: one email on Mondays with the repos that match, never more. See last week's. Privacy
For maintainers
Add this badge to your README. It shows the repo's place on the radar, updates every hour and links back to this page.
[](https://repoalerts.com/repo/decodingai-magazine/building-a-coding-agent-from-scratch-course?ref=badge)Similar repos
- IsuruMaduranga/harness-engineering-101
An open book series in Markdown that explains how AI agents work by building a roughly 300-line toy agent harness in plain Python. It covers the message array, tool calls, the agent loop, context mana
- google-research/harness2
A Python framework for recursive agent harnessing, which refines the prompts, tools, memory, skills and orchestration around a fixed model. It runs a propose-probe-compose loop per task and keeps a pe
- AntoGA/agents-contract
A template AGENTS.md contract for AI coding agents, a zero-dependency Python linter that checks it for required sections, placeholders, secrets and size, and a SessionStart hook that runs the linter a
- mari8711/agent-runtime-kit
A typed, async Python runtime layer that runs coding-agent tasks through the Claude Agent SDK, OpenAI Codex SDK, or Google Antigravity SDK behind one shared task and result API. It reports unsupported
- xingjian-bai/opal
A PyTorch optimizer wrapper that lets a coding agent (Claude Code) rewrite the optimizer's update rules, learning rates, schedules and related code while a model trains. Until the agent changes someth
- robot-agent-exploration/rax
A harness in which general-purpose coding agents (Codex CLI or Claude Code, with a frozen model) control robots through perception and control tools. The agent learns a task from its own online explor