Mustache Variable Set

Every mustache pipeline in this pack funnels toward Mustache Template, and Mustache Template wants concrete variable settings - a MUSTACHE_VARIABLE_LIST. The "full" way to get there is Mustache Variables (define pools) → Mustache Variable Sampler (expand to settings). But sometimes you don't have pools. Sometimes you just want to inject one fixed value into a template that already has a bunch of other placeholders wired up. That's this node: it builds a single-entry concrete variable set from one name and one value, ready to render.

Concretely: variable_name = animal, variable_value = fox → out comes [{"animal": "fox"}] as a MUSTACHE_VARIABLE_LIST. One entry, one key, zero sampling. Wire it straight into Mustache Template and a template like A {{animal}} walks into a bar renders as A fox walks into a bar.

The inputs and output

• variable_name (default animal) - trimmed, must be non-empty, no reserved names.
• variable_value (default fox, multiline) - the concrete value.

Output: variable_sets, a single-entry MUSTACHE_VARIABLE_LIST.

The output type is the giveaway for how to use this: it's already the sampled/concrete form, so it connects directly to Mustache Template - no sampler in between. Contrast with Mustache Variable, which returns the definition form (MUSTACHE_VARIABLES) and needs a sampling step. If you know the value at build time, this is the node; if you're defining candidate pools, that's the other one.

Installing and using it

Part of Skoogeer-Noise. ComfyUI Manager → search "Skoogeer-Noise", or:

cd ComfyUI/custom_nodes
git clone https://github.com/ttulttul/Skoogeer-Noise

Restart ComfyUI. No models or keys; deps are torch, numpy, einops, pyyaml.

Where it actually shines

The underrated use is injecting a fixed value into a template that also has sampled variables. The mustache renderer ignores variables present in a setting but unreferenced in the template, and merges work entry-by-entry - so you can have Mustache Variable Sampler produce 20 randomized settings and Mustache Variable Set produce one fixed camera: "35mm" setting, combine them with Merge Mustache Variable Sets, and every rendered prompt gets the fixed camera plus its own random hair/lighting. That "one fixed variable + a batch of randomized ones" pattern is genuinely common in batch workflows, and it's the cleanest way to express it. Don't overthink this node - it's the simplest thing in the templating family, and that's its strength.