H3 Continuum Clip Overrides

H3 Continuum Clip Overrides lets you override the prompt for specific chunks of a Continuum run without rebuilding the whole prompt as a List or Timeline. Instead of a wall of clip_1_prompt sockets (the V2 sampler's old approach), you connect one Text (Multiline) node containing only the chunks you want to replace, and the node emits a compact prompt_overrides bundle that plugs into a sampler's prompt_overrides input.

Two inputs, one output:

• prompt_mode (Auto) - kept "for V2.1.7 workflow compatibility" per the tooltip. The actual override format is explicit [Clip N] sections, so you can leave this on Auto.
• override_script - one Text (Multiline). Define only the clips to replace, using [Clip N] or [Chunk N] sections.
• prompt_overrides - the H3_CONTINUUM_CLIP_OVERRIDES output, wired into H3 Continuum Sampler's or H3 Continuum Sampler V3's prompt_overrides input.

So a script that only touches clip 2 looks like:

[Clip 2]
The camera pushes in close on the character's face as they notice the door.

Everything else keeps whatever the main sequence_prompt/prompt_script says.

Install

cd ComfyUI/custom_nodes
git clone https://github.com/ukr8b3g-cmyk/ComfyUI-H3-Continuum.git

or via ComfyUI Manager ("H3 Continuum"), then restart. No extra pip packages; needs a MiniMax H3 ComfyUI environment (weights not bundled) and ComfyUI v0.32.0+.

Where this shines: you've got a working 6-chunk run and only chunk 4 keeps drifting off-prompt. Rewrite the entire timeline just to fix one section is annoying; an override that replaces clip 4 while everything else keeps its prompt is surgical. Two things to watch. First, only mention clips that actually exist - an override for a clip beyond your chunks count does nothing. Second, on the modern H3 Continuum Sampler V3.3 there's no prompt_overrides input anymore; per-chunk prompting there goes through the --- List or [0-5s] Timeline formats in the Sequence Prompt itself, so this node is for the V1/V2-era samplers that expose the socket.