whileLoopNode.md

While Loop (whileLoopNode)

Category: Control Flow

Intended behavior

Fires the Body trigger while Condition stays true (max 1000 iterations), then fires Done.

Inputs

ID	Label	Type	Unwired default
inTrigger	Run	trigger	undefined
condition	Condition	any	"true"

Outputs

ID	Label	Type	Default
loopBody	Body	trigger	undefined
iteration	Iteration	number	undefined
done	Done	trigger	undefined

Configuration defaults

{
  "iteration": 0
}

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": {
    "iteration": 0
  }
}

Observed backend behavior

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

{
  "kind": "passive-default-probe",
  "outputs": {
    "iteration": 0
  }
}

Current frontend implementation

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

src/lib/execution-helpers.ts:239

case "whileLoopNode":
      outputs.iteration = Number(config.iteration ?? 0);
      break;

Implementation references

• src/lib/execution-helpers.ts:239
• backend/engine/passive.py:220
• backend/engine/active.py:218

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.
• Trigger inputs schedule actions; passive evaluation alone does not execute those actions. Wire a trigger source and test the full chain.

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