The reboot is a solo 5e RPG in Rust, one binary, with the agent loop in-process against an OpenAI-compatible API. plans/ holds in-flight design docs, plans/completed/ holds shipped ones, and plans/rejected/ holds the ones we walked away from. 0001 lays out the ground rules (playable at every phase, the context stack gets the most care, plain files, per-tool smartness decisions) and stubs the phases at low fidelity on purpose: each phase gets its real plan when we start it. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>