提示词清洁女仆 (Prompt Cleaning Maid)

If you prompt anime/Danbooru-lineage models, your tag strings are rarely clean by the time they reach your text encoder - pasted from a booru post, glued together from a gallery node and a hand-typed prefix, run through a feature-swap or multi-character tool. Underscores where you want spaces, doubled commas from a botched concatenation, malformed weight syntax, brackets that don't match. Prompt Cleaning Maid is a one-node laundromat for exactly that mess, with ten independent toggles covering the specific failure modes that actually show up in Danbooru-style prompting.

Why this node earns its keep

Danbooru's tag vocabulary is the de facto prompting language for the whole Illustrious/NoobAI/Pony family of models - but it's a vocabulary built for a tagging database, not for typed-out prompts, which is exactly where the friction comes from. Tags use underscores (long_hair, not "long hair"), weight syntax like (tag:1.3) is easy to leave malformed if you're editing by hand, and once you're combining strings from multiple sources - a gallery pull, a saved prefix, a character-swap output - stray commas and mismatched brackets creep in fast. This node bundles fixes for all of that into toggles you flip once and forget.

The inputs and outputs that matter

One required input carries the string you're cleaning: string. Everything else is a toggle controlling one specific cleanup rule, all sensible-defaulted so the node does something useful out of the box:

• Comma and whitespace hygiene - cleanup_commas (on by default) removes redundant commas where nothing sits between two of them; cleanup_whitespace (on) trims leading/trailing and doubled-up spaces; standardize_commas (on) normalizes everything to , (comma-space) format.
• Underscore-to-space - underscore_to_space (on) turns Danbooru's _-joined tags into readable phrases.
• Weight syntax repair - complete_weight_syntax (on) wraps malformed weight expressions in parentheses, e.g. tag:1.2 becomes (tag:1.2).
• Bracket handling - fix_brackets (default: both) strips unmatched parentheses and/or square brackets; smart_bracket_escaping (on) tries to tell weight-syntax brackets apart from brackets that are actually part of a character or series name, and flags likely missing commas along the way. fix_region_syntax (on) specifically repairs mismatched brackets in regional-prompt syntax markers like MASK, COUPLE, or FEATHER - worth knowing if you're feeding this cleaner a prompt generated by this pack's own Multi Character Editor, since that's exactly the kind of bracket-heavy syntax it's built to protect from breaking a downstream parser.
• prompt_formatting (on) reads as the master switch bundling the underscore, weight-syntax, and bracket-escaping cluster together - its own tooltip describes doing all three at once. Where the schema doesn't spell out precedence explicitly, treat it as the umbrella and the individually-named toggles as the fine controls underneath it.
• cleanup_newlines (default: off) is the one toggle that isn't on by default - choose to replace line breaks with a space or a comma, or leave them alone.
• remove_lora_tags (default: off, also opt-in) strips LoRA syntax out of the string entirely - useful if you're repurposing a prompt for display or metadata and don't want the LoRA call syntax showing up in it.

Output: a single cleaned string, ready for your text encoder.

How to install it

ComfyUI Manager: search "ComfyUI-Danbooru-Gallery", install, restart. Manual:

cd ComfyUI/custom_nodes
git clone https://github.com/Aaalice233/ComfyUI-Danbooru-Gallery.git
cd ComfyUI-Danbooru-Gallery
pip install -r requirements.txt

Restart ComfyUI. Pure text processing - no model downloads.

Common issues & troubleshooting

Underscores you wanted kept got turned into spaces. underscore_to_space is on by default and applies broadly - if you have deliberate underscore-joined terms you don't want touched (a specific model or LoRA trigger word, say), turn this off, or clean the string before adding that term.

LoRA syntax vanished unexpectedly. Check remove_lora_tags - it's off by default, so if it's stripping LoRA calls you actually wanted, something flipped it on, or you're looking at a different string than you think.

A regional-prompt syntax string (from Multi Character Editor or similar) parses wrong after cleaning. fix_region_syntax is meant to protect exactly this kind of bracket-heavy syntax, but if the syntax convention it expects (MASK, COUPLE, FEATHER) doesn't match what your specific downstream regional-prompting node actually uses, turn this toggle off for that particular string rather than fighting it.

Node doesn't appear in the menu. Standard pack-load check: confirm the repo path, confirm dependencies installed, check the ComfyUI console at startup for an import error.