Show HN: Aharness – Enforce coding-agent workflows as state machines on Codex

Agents are capable enough for long, autonomous, multi-step work now, if they have the right guardrails.. The failure mode is now process drift and context management. Prompts and skills can describe a process, but they can't enforce it.Aharness turns the process into a runtime. You (your agent) write the workflow as a finite state machine in TypeScript: states define what Codex may do next, typed submissions prove what happened, and transitions only occur through validated exits. If a state does