stringOpNode.md

Text Transform (stringOpNode)

Category: Data & Text

Intended behavior

Transforms text: uppercase, lowercase, trim, length, or reverse.

Inputs

ID	Label	Type	Unwired default
text	Text	string	""
enabled	Enabled	boolean	true

Outputs

ID	Label	Type	Default
out	Out	any	undefined

Configuration defaults

{
  "op": "uppercase"
}

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": {
    "out": ""
  }
}

Observed backend behavior

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

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

Current frontend implementation

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

src/lib/execution-helpers.ts:219

case "stringOpNode": {
      const text = String(inputs.text ?? "");
      const op = config.op ?? "uppercase";
      if (op === "uppercase") outputs.out = text.toUpperCase();
      else if (op === "lowercase") outputs.out = text.toLowerCase();
      else if (op === "trim") outputs.out = text.trim();
      else if (op === "length") outputs.out = text.length;
      else if (op === "reverse") outputs.out = [...text].reverse().join("");
      else outputs.out = text;
      break;
    }

Implementation references

• src/lib/execution-helpers.ts:76
• backend/engine/passive.py:198

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.