Easy AI Pipeline (Koolook)

If your ComfyUI life is one long string of outputs/2026-08-16/whatever_001.png, Easy AI Pipeline is the node that finally gets you a clean, versioned folder structure for every shot you render. It doesn't generate anything. It's a path orchestrator: you tell it where your shot lives, what method you're running, and what version you're on, and it hands you back the exact file path and directory to write into.

This is a VFX-flavored pack, and it shows. The naming conventions - shot_name, ai_method, v### version tokens, .%04d.exr sequence extensions - are straight out of a plate-pipeline workflow, the kind of thing you'd see wired into Nuke or an editorial department rather than a hobbyist's "output" folder. The author (Kforge Labs) clearly got tired of hunting for files after a hundred test renders.

How it works

Feed it a base directory and a shot name, and it composes an output path as base_directory_path/shot_name/ai_method/v###/. The filename follows the same logic, and you control the extension - .%04d.exr writes frame_0001.exr, frame_0002.exr, and so on. The version field accepts a bare number like 2 and promotes it to v002, or you can type v001 / final and it's used verbatim. Convert version to an input and you can wire it from a global version node, which is where Easy Utility comes in.

It also defends you against the dumbest failure modes of pasted paths. Explorer's "Copy as path" quotes, trailing backslashes, leading whitespace - all stripped, so n:\foo\bar\, "n:/foo/bar", and n:\foo\bar all resolve identically. Even the shot and method segments get sanitized so a typo can't escape your base folder (a classic os.path.join gotcha where an absolute segment silently overrides the base).

Two toggles change the layout: no_subfolders flattens shot/method into the filename only (version folder still applies), and disable_versioning drops the v### segment entirely. enable_overwrite lets you write over an existing file - off by default, because accidentally nuking yesterday's render is a bad Tuesday.

The outputs that matter

• WRITE_file_path - the fully resolved path to write into. Feed this to a save node.
• output_name, output_directory - the file name and folder separately, handy for previews and secondary writers.
• version_string - the resolved version token, so every node downstream agrees on what "current version" means.
• shot_duration and seed_value - pass-throughs. Set them once here (defaults are 81 frames and a fixed seed) and they flow to every sampler and saver, which is the entire point: one place controls the whole shot.

Install

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

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

Or clone manually:

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

Restart, and it's under Koolook/Pipeline. No model files, no extra deps - it's pure string and path handling. The pack's one real gotcha applies here too: install once, via one method. A Manager install lands at custom_nodes/koolook/; cloning a second copy to custom_nodes/ComfyUI-Koolook/ loads both and the workflow store starts silently corrupting on every restart. The plugin detects this and disables the losing copy, but just remove one folder.

Common issues

• "File already exists" error - enable_overwrite is off, and it should be for real work. Turn it on only when you know you want to clobber.
• Path comes out weird - you don't have to scrub it yourself, but check the instruction field: it's a read-only hint reminding you the actual base folder goes in the multi-line base_directory_path, not the short field above it.
• Sequence numbers not appearing - the extension is used verbatim. If you want frame_0001.exr you must include the %04d yourself; that's the filename pattern, not auto-magic.