Input Float (ShellAgent Plugin)

Input Float (ShellAgent Plugin) is the pack's way of letting a caller hand your workflow a decimal number - a strength, a CFG scale, a denoise level, whatever you want to expose. It's the float sibling of Input Text: a named, externally-settable FLOAT slot that a ShellAgent app fills in at runtime, with a widget value you can type while testing locally.

The selling point over a plain float constant is the minimum / maximum pair. Those two fields are what tell the app to render a slider with real bounds instead of a free-form number box - and that's also the thing most people forget to set.

How it works

The node's validate() method advertises the input's schema to ShellAgent - title from input_name, type number, plus the min/max bounds you configured. The app builds its form from that, injects the chosen value, and the node returns it on the float socket. Run standalone and the widget's default_value is simply what comes out. Nothing clever, which is exactly what you want from an input shim.

Inputs that matter

• input_name - the variable name the app sees. Default input_float.
• default_value - the value used when the app doesn't supply one. This is what you type in while testing.
• minimum / maximum - set both if you want a bounded slider. The defaults are 0 and 0, which the app reads as "range from 0 to 0" - effectively a locked slider. Set real bounds.
• description - optional help text for the app's UI.
• choices - an optional picklist, same "manage choices" mechanism as Input Text, if you want the app to offer discrete options instead of a free number.

Output: a single FLOAT on the float socket.

One thing to note: there's no step field on this node like the integer version has, so continuous values are the norm here. If you need discrete stepping, reach for Input Integer.

Installing it

Same one-pack install as the whole family:

cd ComfyUI/custom_nodes
git clone https://github.com/myshell-ai/ComfyUI-ShellAgent-Plugin

restart, or find ComfyUI-ShellAgent-Plugin in ComfyUI Manager. No model files; the pack's pip dependencies (pydantic, opencv-python, pillow_heif, …) install alongside it.

Common issues

• The app's slider is stuck at 0. You left minimum/maximum at their defaults. Set both to real values.
• The app shows a text field instead of a slider. Same root cause - no bounds means the app can't infer a slider.
• My float keeps rounding. If you're feeding the output into an INT socket downstream, that rounding is the downstream node, not this one - this node passes the float through untouched.

It's a small node with a small job. Get the min/max right and it disappears into your workflow, which is the highest compliment an input shim can earn.