Building Claude Code from Scratch: A Minimal Agent in 393 Lines of C++
The article discusses the creation of MoonieCode, an AI coding assistant built in C++ that can read files, write code, and execute shell commands. It operates through a simple while loop and communicates with the Claude LLM via HTTP requests. The implementation details include handling JSON responses and using C++ features to manage different types of responses from Claude.
- ▪MoonieCode is a minimal AI coding assistant written in C++23, consisting of 393 lines of source code.
- ▪The assistant communicates with the Claude LLM by sending HTTP POST requests containing JSON data.
- ▪The response from Claude can either be a direct text answer or a request to execute a tool, which MoonieCode handles using C++ variants.
Opening excerpt (first ~120 words) tap to expand
try { if(localStorage) { let currentUser = localStorage.getItem('current_user'); if (currentUser) { currentUser = JSON.parse(currentUser); if (currentUser.id === 3938418) { document.getElementById('article-show-container').classList.add('current-user-is-article-author'); } } } } catch (e) { console.error(e); } Tyler Tan Posted on May 20 Building Claude Code from Scratch: A Minimal Agent in 393 Lines of C++ #agents #claude #cpp #showdev An AI coding assistant that reads your files, writes code, and runs shell commands. The core logic? A single while loop. I thought it was bullshit too, until I built one myself. The project is called MoonieCode, and the code lives here: https://github.com/Tenaryo/MoonieCode. Written in C++23, clocking in at 393 lines of source (637 if you count tests).
…
Excerpt limited to ~120 words for fair-use compliance. The full article is at DEV.to (Top).
Discussion
0 commentsMore from DEV.to (Top)
