thresholdNeuron.md

Threshold Neuron (thresholdNeuron)

Category: Neural Network

Intended behavior

Fires only when Value crosses the Threshold (above or below, set by the switch), passing Value through.

Inputs

ID	Label	Type	Unwired default
threshold	Threshold	number	5
value	Value	number	0
enabled	Enabled	boolean	true

Outputs

ID	Label	Type	Default
fired	Fired	boolean	undefined
out	Out	any	undefined

Configuration defaults

{
  "mode": "above"
}

Observed frontend behavior

This calls the production passive computation with the declared input/config defaults. Cached state, trigger execution and project wiring are separate.

{
  "kind": "passive-default-probe",
  "outputs": {
    "fired": false,
    "out": null
  }
}

Observed backend behavior

Offline production passive computation with the same declared defaults; no device or model service is invoked.

{
  "kind": "passive-default-probe",
  "outputs": {
    "fired": false,
    "out": null
  }
}

Current frontend implementation

Extracted production branches; helper calls and project execution context are defined in the referenced modules.

src/lib/execution-helpers.ts:275

case "thresholdNeuron": {
      const value = Number(inputs.value ?? 0);
      const threshold = Number(inputs.threshold ?? 0);
      const fired = (config.mode ?? "above") === "below" ? value < threshold : value > threshold;
      outputs.fired = fired;
      outputs.out = fired ? value : null;
      break;
    }

Implementation references

• src/lib/execution-helpers.ts:78
• backend/engine/passive.py:232

Verification limits

• Default passive probe is an observation, not proof of all configurations, trigger behavior, or correctness. See ../NODE_RUNTIME_AUDIT.md and ../AUDIT_VALIDATION.md for test evidence.
• Enabled=false uses the runtime bypass mapping; bypass output can differ from the normal declared output type.

Source fingerprint: 7e9d192bd3a559a7c50253919867601ef02c311d61e859f7afb4cadcfa508430. Rebuild with npm run docs:index.