ComfyUI-LoRA-Manager

ComfyUI-LoRA-Manager (willmiao) registers Vue autocomplete widgets via getCustomWidgets(). Those widgets are healthy in the ComfyUI menu, and drag-from-palette works, but panel_add_node cannot add the nodes that require them.

The add-node guard polls app.widgets for a constructor. ComfyUI 1.49+ stores getCustomWidgets() results in the frontend widget store, not on app.widgets. The wait always expires after 5s. Reload, panel_refresh_nodes, and retry cannot clear it. That refusal is not a missing pack.

Which nodes panel_add_node will actually add

Works	Refuses (AUTOCOMPLETE_TEXT_*)
LoRA Text Loader (LoraManager)	Lora Loader (LoraManager)
core LoraLoader	Lora Stacker (LoraManager)
core LoraLoaderModelOnly	WanVideo Lora Select (LoraManager)
	Text (LoraManager)
	Prompt (LoraManager)

LoRA Text Loader (LoraManager) is the same backend as Lora Loader (LoraManager) (MODEL / CLIP / trigger_words / loaded_loras). The difference is the LoRA input: lora_syntax is a STRING socket (forceInput), so a regular string node or panel_set_widget can drive it.

Syntax (spaces or punctuation between entries):

<lora:lora_name:strength>
<lora:lora_name:model_strength:clip_strength>

Recipe — stack a LoRA from the panel

1. panel_add_node(class_type="LoRA Text Loader (LoraManager)"). Do not add Lora Loader (LoraManager); it will wait 5s and refuse.
2. Wire MODEL (and CLIP if you have one) through it.
3. Drive lora_syntax with panel_set_widget or a wired STRING, e.g. <lora:style/foo.safetensors:0.8>.
4. Put the node's trigger_words output into the prompt if the sidecar has any.

If LoRA Manager is not installed, use core LoraLoader and set lora_name / strength_model / strength_clip as usual.

Gotchas

• The refusal names a tab reload. Do not follow that. The constructor will never appear on app.widgets.
• panel_set_widget on text after a refused add never runs, because nothing was created. The working widget name is lora_syntax.
• A freshly added Text Loader still needs lora_syntax written; an empty string loads no LoRA.

Sources

• Official: https://github.com/willmiao/ComfyUI-Lora-Manager for node class names and the lora_syntax format from the pack; no vendor panel-authoring guide exists.
• Empirical: the panel_add_node AUTOCOMPLETE_TEXT_* refusal, which nodes add cleanly, and the widget-store explanation from observed panel behavior in this repo.