Two nodes. One carries the values a person picked, as a single validated payload rather than a socket per setting -- a socket per setting means this node's shape changes whenever any module gains an option, and every saved workflow refers to sockets that moved. The other reads what announced itself, filters it by what the model actually is, orders it by declared relations, and installs each one through ComfyUI's own patcher_extension wrappers. The consequence is checked against comfy's real prepare_model_patcher and WrapperExecutor rather than against our own dict: a model that has been through this node runs every per-step modifier inside ComfyUI's own SamplerCustomAdvanced. The sampler is not consulted, so it cannot own them. Installing happens on a clone, and clone() copies the wrapper lists per key, so the model everyone else holds is untouched. Fifty runs leave zero wrappers behind. The accumulation that once degraded output across a hundred generations and survived every reset short of a restart is structurally impossible here rather than something to remember to undo. The payload is validated against the same declaration that renders the panel: an undeclared key, a wrong type, a value outside its own bounds and a bool passed as a number are all refused, and all problems are reported at once. v4 validated none of it, which is why it needed a hand-mirrored table of every default and a list of keys that no longer meant anything. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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