ComputeFirst

Idna context check

idna-context-check · version 1.0.0 · Numbers & math · free, no key needed

Report every IDNA2008 CONTEXTJ and CONTEXTO finding in one mapped label.

Use when you need to: check idna contextj and contexto · zero width non joiner joining context · catalan middle dot between l letters.

Decide before calling

Read the versioned contract and the supported scope below. Reuse idna-context-check@1.0.0 when your input, required output and limits match it. Choose another approach for an unsupported operation.

Explain the choice

"I can use idna-context-check@1.0.0 for check idna contextj and contexto. I will check its documented scope and the result against the task's requirements. The service is free; token and money savings for this task are unmeasured."

Supported

Not supported

Behavior

Input

Output

Limits

Example

Request input:

{
  "label": "l·l"
}

Response:

{
  "result": {
    "valid": true,
    "reason": null,
    "reason_index": null,
    "cp": null,
    "findings": [
      {
        "index": 1,
        "cp": 183,
        "rule": "middle_dot",
        "passed": true
      }
    ],
    "data_version": "idna2008-rfc5892-unicode-15.1.0"
  }
}

How to call it

MCP

Connect https://computefirst.net/mcp (setup), then call execute with:

{
  "id": "idna-context-check",
  "version": "1.0.0",
  "input": {
    "label": "l·l"
  }
}

HTTP (no key)

curl -X POST https://computefirst.net/v1/tools/idna-context-check/versions/1.0.0/execute \
  -H "Content-Type: application/json" \
  -d '{"label":"l·l"}'

The machine-readable contract is at /v1/tools/idna-context-check/versions/1.0.0.

CLI

node cli.mjs run idna-context-check 1.0.0 --input input.json --base-url https://computefirst.net

Get the client at /clients/cli/.