---
title: "chat.command-registration-request@1 · OpenVibe.Services"
canonical: "https://openvibe.services/docs/contracts/chat.command-registration-request"
updated: null
---

# chat.command-registration-request@1 · OpenVibe.Services

HTML: [chat.command-registration-request@1 · OpenVibe.Services](https://openvibe.services/docs/contracts/chat.command-registration-request)

# Chat command registration request `chat.command-registration-request@1`

Generated at 2026-11-13 06:25:48 UTC from [`openvibe-contracts v0.419.0`](https://github.com/OpenVibers/OpenVibe.Contracts/tree/v0.419.0) and [`openvibe-sdk v0.161.0`](https://github.com/OpenVibers/OpenVibe.SDK/tree/v0.161.0).

- Version: 1.0.0
- Owner: chat
- Visibility: public
- Status: active
- Compatibility: backward
- Schema: [`https://openvibe.network/contracts/chat/command-registration-request.v1.json`](/docs/contracts/chat.command-registration-request.json)

chat.command-registration-request@1: an approved app or Actor agent registers a plain-response command in a server that the person named in its service token manages. The command cannot override a built-in. The template's {args} placeholder receives the invoking person's argument text; Chat posts the expanded result as that person after checking their current room rights.

## Fields

| Field | Type | Required | Description | Constraints |
| --- | --- | --- | --- | --- |
| `server` | string | yes |  | - `pattern ^[a-z0-9][a-z0-9-]{1,31}$` |
| `command` | [chat.command](/docs/contracts/chat.command) | yes |  |  |
| `response_template` | string | yes |  | - `minLength 1`<br>- `maxLength 2000` |

## Examples

From the contract's own test fixtures: valid ones validate, rejected ones must fail.

 Valid: hello

~~~~
{
  "server": "command-tests",
  "command": {
    "name": "hello",
    "description": "Say hello",
    "options": [
      {
        "name": "text",
        "description": "Who to greet",
        "type": "string",
        "required": false
      }
    ]
  },
  "response_template": "Hello, {args}!"
}
~~~~

Rejected: no-template

~~~~
{
  "server": "command-tests",
  "command": {
    "name": "hello",
    "description": "Say hello",
    "options": []
  }
}
~~~~

## Validate

~~~~
const contracts = require('openvibe-contracts');
contracts.validate('chat.command-registration-request@1', value);   // { valid, errors: [{ path, message }] }
~~~~