Improve Prompt For Generation

Immutable Catalog Entry

This descriptor comes from the active versioned Portal catalog.

WRITEleonardo-ai.leonardo_improve_prompt_for_generation

• Contract tier: agent_ready
• Risk: write
• Catalog version: leonardo-ai-2026.07.12.1
• Descriptor hash: 01c609c85d77c2a5d4631b6a75421ab97488a51fe6f5e886e37bf33f1e7da13d

Use this for short draft prompts; calls Leonardo prompt/improve. Requires the request-scoped x-leonardo-api-key Portal field and contacts Leonardo.Ai.

Request Body

{
  "jsonrpc": "2.0",
  "id": "leonardo-ai-leonardo-improve-prompt-for-generation-example",
  "method": "tools/call",
  "params": {
    "name": "leonardo-ai.leonardo_improve_prompt_for_generation",
    "arguments": {
      "prompt": "prompt_example",
      "is_video": false,
      "prompt_instructions": ""
    }
  }
}

Arguments Schema

{
  "type": "object",
  "required": [
    "prompt"
  ],
  "properties": {
    "prompt": {
      "type": "string",
      "description": "Prompt to improve for generation."
    },
    "is_video": {
      "type": "boolean",
      "default": false,
      "description": "Set true when improving the prompt for a video generation."
    },
    "prompt_instructions": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "default": null,
      "description": "Optional instructions for how Leonardo should improve the prompt, such as cinematic, product photography, or concise video motion."
    }
  },
  "additionalProperties": false
}

Output Schema

{
  "type": "object",
  "description": "Leonardo MCP result. ok=false, provider_ok=false, a failed status, or an error field represents a semantic failure even when transport delivery succeeded.",
  "additionalProperties": true
}

Code Examples

cURL

curl -X POST 'https://portal.madpanda3d.com/api/mcp' \
  -H 'Authorization: Bearer mad_live_***' \
  -H 'Content-Type: application/json' \
  -d '{
  "jsonrpc": "2.0",
  "id": "leonardo-ai-leonardo-improve-prompt-for-generation-example",
  "method": "tools/call",
  "params": {
    "name": "leonardo-ai.leonardo_improve_prompt_for_generation",
    "arguments": {
      "prompt": "prompt_example",
      "is_video": false,
      "prompt_instructions": ""
    }
  }
}'

Node.js

const response = await fetch('https://portal.madpanda3d.com/api/mcp', {
  method: 'POST',
  headers: {
    Authorization: 'Bearer mad_live_***',
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
  "jsonrpc": "2.0",
  "id": "leonardo-ai-leonardo-improve-prompt-for-generation-example",
  "method": "tools/call",
  "params": {
    "name": "leonardo-ai.leonardo_improve_prompt_for_generation",
    "arguments": {
      "prompt": "prompt_example",
      "is_video": false,
      "prompt_instructions": ""
    }
  }
}),
});
const data = await response.json();
console.log(data);

Python

import requests

url = 'https://portal.madpanda3d.com/api/mcp'
headers = {
    'Authorization': 'Bearer mad_live_***',
    'Content-Type': 'application/json',
}
payload = {
  "jsonrpc": "2.0",
  "id": "leonardo-ai-leonardo-improve-prompt-for-generation-example",
  "method": "tools/call",
  "params": {
    "name": "leonardo-ai.leonardo_improve_prompt_for_generation",
    "arguments": {
      "prompt": "prompt_example",
      "is_video": false,
      "prompt_instructions": ""
    }
  }
}
response = requests.post(url, headers=headers, json=payload, timeout=60)
print(response.json())

Example Responses

200 Success

{
  "ok": true,
  "message": "Tool leonardo-ai.leonardo_improve_prompt_for_generation executed successfully.",
  "note": "Response shape varies by MCP tool. Inspect live responses for exact fields."
}

502 Upstream Error

{
  "ok": false,
  "classification": "upstream_http_error",
  "message": "Upstream MCP returned a non-success status."
}