🎈LG_ClearAccumulatedValues

LG_ValueReceiver accumulates values by default, and that accumulation is class-level state - it doesn't reset just because you ran the graph again. LG_ClearAccumulatedValues is the reset switch: a tiny output node that wipes the accumulated values for one link_id or for all of them, then passes your signal through so you can trigger it as part of a sequence.

It's from Comfyui-LG_GroupExecutor, LAOGOU-666's small utility pack. There isn't much to this node - it exists to solve one specific footgun, and it solves it in about 20 lines. You'll reach for it in any workflow where values accumulate across runs and you need a clean slate at the start of a batch.

How it works

You give it a link_id and it clears LG_ValueReceiver's stored list for that channel. Set link_id to -1 (the default) and it clears every channel's accumulated values, then also tells the frontend to clear its mirror state via a value-clear-accumulate websocket event - so both the Python-side list and whatever the UI is showing get wiped together. The optional signal_opt input passes straight through to the signal output, letting you chain it: clear, then continue execution.

Inputs & outputs

• link_id (INT, default -1) - a specific channel to clear, or -1 for everything.
• signal_opt (optional) - pass-through.

Output: signal, which is just your signal_opt echoed back.

Install

cd ComfyUI/custom_nodes
git clone https://github.com/LAOGOU-666/Comfyui-LG_GroupExecutor

or ComfyUI Manager → "Comfyui-LG_GroupExecutor", then restart.

When you actually need it

• Start-of-batch reset. Put it first in the chain so each batch begins with empty accumulation.
• Per-channel isolation. Passing a specific link_id only nukes that channel, leaving other sender/receiver pairs untouched.
• Debugging stale values. If a receiver keeps handing you values you didn't send this run, this node is the first thing to try - 9 times out of 10 the old accumulation is the culprit.