Koolook Publish Output

Koolook Publish Output is the mirror image of Publish Input: where Input declares what a published workflow can be fed, Output declares where it writes. Folder, name, version, and output type - the four things an external app needs to know to run your published setup and file its results correctly.

Like its sibling it's a contract node, not a processor. You set the values, they flow out as strings, and the external published-setup runner reads the same contract to know what to expect. It's the "output_args" half of a published pipeline.

The inputs

• folder - destination directory, exposed to the app and wired into your writer/path nodes.
• name - the base output name.
• version - the version token or number (a string, so v003 and 3 both work).
• output_mode - which writer branch the payload should route into: Same as input (the default), EXR, QT, or Img. The tooltip is the spec: "Same as input passes the wired input switch through (output type follows input type); pick EXR/QT/Img to write a different type than the source."
• input_switch - optional. Wire Publish Input's switch output here. Only used when output_mode is Same as input; it makes the output type follow whatever input type was chosen. Ignored when a concrete mode is selected.

The outputs

Four: folder, name, version (the strings, wired into downstream writer/path nodes) and switch - an INT that feeds Koolook Publish Router's selector. The switch resolution logic is worth knowing: Same as input passes the wired input switch through, so an unmodified setup writes the same type it reads. A concrete EXR/QT/Img overrides it. Prompt is never an output format, so an index of 3 falls back to following the input switch.

How it fits the Publish family

The chain is: Publish Input (source) → Publish Router (fan the payload into branches) → Publish Output (writer branch index) → Publish Result (report the outcome). Output is the middle contract: it's what tells the router which branch to keep, and it's what the external app reads to know where the results landed.

Install

Part of ComfyUI-Koolook. Manager → Install Custom Nodes → Git URL:

https://github.com/malkuthro/ComfyUI-Koolook.git

Or:

cd ComfyUI/custom_nodes
git clone https://github.com/malkuthro/ComfyUI-Koolook.git

Restart and it's under Koolook/Publish. No models, no dependencies. And the pack rule: install once. A Manager install at custom_nodes/koolook/ plus a second clone double-registers everything and corrupts the workflow store on every boot - remove one folder.

Common issues

• Writes the wrong type - output_mode is Same as input but input_switch isn't wired, so it falls back to a default (Img). Either wire the input switch or pick a concrete mode.
• Outputs in the wrong place - folder isn't actually connected to your writer nodes. Declaring it here doesn't move files by itself; the string has to reach a real save node.
• Prompt mode confusion - Prompt is a source type, never an output format. If you're seeing it in the output dropdown, remember it isn't a writer branch - that's by design.