H-04Planner → Executor → Replanner

A plan is executed step by step, and rewritten whenever the environment disagrees with it.

Key insight

Treat the plan as mutable state, not scripture. The interesting engineering is in what evidence triggers a revision.

Failure mode

Thrash: a replanner that revises on every hiccup never finishes; one that revises too rarely is just Plan → Execute with extra cost.

Elsewhere in the atlas