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

Aharness is a devtool that enforces coding-agent workflows as state machines on Codex, preventing process drift and context mismanagement by turning a defined process into a runtime. It is for developers building autonomous, multi-step coding agents who need reliable guardrails beyond what prompts and skills can provide. This is interesting because it enables long, unsupervised agentic work by making the workflow itself executable and enforceable.