JoyLTX Prompts from File

Pasting a finished script into the Multishot sampler's prompt box works once. The moment you have several episodes, or prompts that came out of an external tool, or a batch you want to walk through unattended, the text belongs in a file - and JoyLTX PromptFile reads it for you. Point it at a .txt or .json under ComfyUI/input (or an absolute path), and it hands the sampler ready-to-use shot prompts plus a count.

The file formats are the same ones the writer emits. A .txt with --- on its own line between blocks becomes one prompt per block; no --- lines and it splits on blank paragraphs instead. A .json can be {"prompts": [...]} or a plain list - either is fine, and dicts also accept a shots key as an alias. Default path is joyltx_prompts/episode.txt, which tells you where the pack expects you to keep these.

The two outputs you'll actually wire are prompts (a JSON string the sampler parses directly) and shot_count (how many shots you're feeding it - handy for a display or a save node). The other two are batch machinery: name is the file's basename, and block is the single prompt at the current index.

That index is where the node gets interesting. Switch mode from file (path) to folder + index and the path field stops mattering: index now picks the Nth .txt/.json file in the folder (sorted, wrapping at the end). Wire a Primitive set to increment into index, queue the graph once per file, and a whole folder of scripts renders unattended - each run picking the next file. In file mode, index instead picks which block inside the file, so you can step through one script's shots one at a time. Set reload off and the file is cached instead of re-read every run; leave it on (the default) and editing the file on disk changes the next run without touching ComfyUI.

Worth knowing: reload is implemented through the node's changed-detection, so with it on, the node re-reads when the file's mtime changes - that's the "edit and rerun" loop working as intended. If a path doesn't resolve you get a clear "not found: <path>" error naming the exact file it looked for. It ships with the JoyLTX25 pack and needs nothing extra.

If you want the same idea one level up - where the file holds story ideas the writer expands, not finished shot prompts - that's JoyLTX StorySource. PromptFile is the version that assumes the writing is done.