Create Text File

Somewhere in every ComfyUI user's life there's a "save this text so I can use it later" moment. The prompts, the metadata, the config JSON, the list of what this run produced - ComfyUI is great at saving images and not great at saving anything else. Create Text File (class name FileCollisionTestNode, don't worry about the name) writes a text file to any path you give it, straight from a workflow.

The display name it's sold under is honest about the simple job: you type a file_path and some file_content, hit queue, and a file exists. It's an output node, so it runs on every execution - which is exactly what you want for logging, for writing prompt batches to disk, or for stashing a manifest alongside your renders.

How it works

Two required inputs, both strings:

• file_path - where to write. Relative paths resolve against your ComfyUI working directory; absolute paths work as you'd expect. If the path has no extension, the node appends .txt automatically. It also creates any missing parent directories, so you can point it at output/logs/run_001 and the folder structure appears.
• file_content - the text to write (multiline, so paste your whole prompt or config).

On success it returns result_message (a string like "Test file created successfully at '…'") and a success boolean. Since it's an output node, you don't usually wire those anywhere - the file on disk is the real output, and the message is there for you to eyeball in the console or route to a text preview if you want confirmation.

The original purpose (the class name gives it away) was testing file-collision handling in the pack's Smart File Transfer node - it was a debugging doodad that turned out useful on its own. The genuinely useful patterns: writing per-run prompts to output/<something>/prompt.txt, dumping a workflow's inputs to a config file, or generating a prompts.txt that the pack's Text File Line Loader then iterates over. It's the "echo >> file" of ComfyUI, and sometimes that's all you need.

Install

Search "Trent Nodes" in ComfyUI Manager, or:

cd ComfyUI/custom_nodes
git clone https://github.com/TrentHunter82/TrentNodes.git
cd TrentNodes
pip install -r requirements.txt

No models, no special dependencies - plain Python file I/O. Restart ComfyUI after installing. (The author has flagged Manager install flakiness on this pack from an early repo rename; the manual clone is the reliable fallback.)

Common issues

• File ended up somewhere unexpected. Relative paths are relative to ComfyUI's working directory, not your output folder. Use an absolute path when it matters.
• Content got mangled. The file is written as UTF-8, so non-ASCII prompts are fine - but if your downstream tool expects a specific encoding or line endings, that's on you to handle.
• "Where's my .json?" If you want a non-.txt extension, include it in the path - the auto-append only fires when there's no extension at all.
• The success output feels useless. It's a boolean for branching if you ever make this node non-output by converting it, but for now the file-on-disk is the deliverable.

For "just write this text to disk," it's a two-field node that does exactly what it says. There's no wizardry here - and that's the point.