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Agents in the Wild

Claude Code built them a coding agent that rewrites its own source

Instead of plugins, the agent writes down improvement ideas, edits its own Rust source and recompiles itself. It runs on DeepSeek 4 Flash on two local GPUs at about 138 tokens a second.

Done withClaude CodeSpotted· by HN user arjie· Oct 15, 2026

Result About 138 tokens a second on local GPUs

“The source code is in a fixed place so it can just rewrite and build the agent itself.”
From the source: Hacker News · 2026-05-17

Spotted: found in the wild. Details are as reported by the source above and have not been independently verified.

What they did

Had Claude Code build a coding agent in Rust, borrowing ideas such as Dirac’s line hashing for edits. Instead of plugins, the agent writes improvement ideas to a separate file, then updates its own source code, which sits in a fixed place, and recompiles itself.

How it went

It runs on DeepSeek 4 Flash on two RTX 6000 Pro cards at about 138 tokens a second. The developer says they openly borrowed from Pi, Dirac and OpenCode.

Try it yourself with Claude Code
Build me a minimal terminal coding agent in Rust. It needs a chat loop with [model API] and tools to read files, edit files (using line hashes to target edits), run shell commands and search. Keep the source in [path]. Add a command that lets the agent write improvement ideas to IMPROVEMENTS.md, edit its own source and rebuild itself.

A starting prompt written by Agents in the Wild. Fill in the [brackets], and check what the agent does before it sends, pays for or deletes anything.

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