Skimmed CFG - Clean Skim

The Skimmed_CFG pack is mostly about giving you dials - skimming scales, percentages, flips. This node is the exception: it's the pack's anti-burn mechanism locked to fixed, sensible settings with exactly one control, an on/off switch. If you want the benefit of Skimmed CFG without spending an evening fiddling, this is the one to grab.

Internally it's the main node (CFG_Skimming_Single_Scale_Pre_CFG) called with the fallback scale set to the sampler's current CFG, full skim of the negative enabled, and everything else at default. So it constantly skims the conflicting part of the negative's influence and leaves the positive prediction alone. "Constant" is the operative word: it applies from the first step to the last, no start/end percentages, no flip.

The inputs

• model - wire the model loader's MODEL output here.
• enabled (default on) - the whole interface. Off means the model passes through unpatched, which is a handy A/B switch when you want to prove the skim is actually doing something for your current checkpoint and prompt.

Output: a patched MODEL for your sampler.

Installing it

Part of Extraltodeus/Skimmed_CFG - no pip dependencies, no model downloads, just the one file. In ComfyUI Manager search "Skimmed_CFG" (Extraltodeus) and install, or:

cd ComfyUI/custom_nodes
git clone https://github.com/Extraltodeus/Skimmed_CFG

Then restart ComfyUI.

Caveats

• CFG 1 means no-op. The skim hook runs on the unconditioned pass, which ComfyUI skips at CFG 1. On guidance-distilled models (Flux, turbo/lightning checkpoints) this does nothing unless you raise the sampler's CFG - which is exactly the high-CFG regime this pack exists for.
• Because the fallback follows the sampler's current scale, this node doesn't change your color/saturation character the way picking an explicit skimming scale does. Use it for clean-up, not for style.
• It's the current name for what used to be "Skimmed CFG - Clean Skim." Old saved workflows that reference that name can show a missing-node error after the pack's January 2026 rename; this node is the drop-in.

If you're on SD 1.5/SDXL-lineage and your negative keeps smudging the composition, one switch is all the decision this needs to be.