Crumb - a small self-improving agent harness in under 200 lines of hand-written TypeScript. Bun runtime, no external libraries.

· Zohaib · May 27, 2026, 10:48 p.m.
Summary
This blog post discusses the creation of 'Crumb', a minimal self-improving agent using TypeScript with a focus on simplicity and readability. The author, Zohaib, emphasizes the experimental aspect of the project over utility, showcasing how it can self-modify by editing its own code. The post is geared towards developers interested in innovative programming concepts and the potential of self-improvement in software.
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