A coding agent can bootstrap itself. Starting from a 926-word specification and a first implementation produced by an existing agent (Claude Code), a newly generated agent re-implements the same specification correctly from scratch. This reproduces, in the domain of AI coding agents, the classical bootstrap sequence known from compiler construction, and instantiates the meta-circular property known from Lisp. The result carries a practical implication: the specification, not the implementation, is the stable artifact of record. Improving an agent means improving its specification; the implementation is, in principle, regenerable at any time.
@article{arxiv.2603.17399,
title = {Bootstrapping Coding Agents: The Specification Is the Program},
author = {Martin Monperrus},
journal= {arXiv preprint arXiv:2603.17399},
year = {2026}
}