MCP tool

extract_persona

Turn a natural-language audience brief (e.g. "London-based technology decision makers") into a structured AdBuyMCP persona: geo, demographics, firmographics, intent topics, interests, exclusions, with per-element confidence. Returns the created persona including its id — use that id with compile_persona and generate_plan.

Input

Pass fields from this schema as the tool arguments. Runtime ownership, product scope and readiness checks still apply.

Input JSON Schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "nlBrief": {
      "type": "string",
      "minLength": 3,
      "description": "the audience brief in plain English"
    }
  },
  "required": [
    "nlBrief"
  ]
}

REST mapping and authority

The tool wraps this REST endpoint. The mapping identifies path/query/body transformations and approval or idempotency headers.

Request contract

{
  "method": "POST",
  "path": "/api/v1/personas/extract",
  "pathFields": [],
  "pathSchema": {
    "type": "object",
    "properties": {},
    "additionalProperties": false
  },
  "pathEncoding": "encodeURIComponent for each path field",
  "governedAction": null,
  "headers": {},
  "bodySchema": {
    "type": "object",
    "properties": {
      "nlBrief": {
        "type": "string",
        "minLength": 3,
        "description": "the audience brief in plain English"
      }
    },
    "additionalProperties": false,
    "required": [
      "nlBrief"
    ]
  },
  "responseMapping": "REST JSON is returned as MCP structuredContent and a compatibility text block; privacy-sensitive tools validate their output schema."
}

Output

This is the registered MCP output envelope. Nested fields are only modeled where the schema explicitly defines them.

Output JSON Schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "persona": {
      "type": "object",
      "propertyNames": {
        "type": "string"
      },
      "additionalProperties": {}
    }
  },
  "required": [
    "persona"
  ],
  "additionalProperties": {}
}

Safety annotations

MCP annotations

{
  "readOnlyHint": false,
  "destructiveHint": false,
  "idempotentHint": false,
  "openWorldHint": false
}

Annotations help a client present the tool. The API independently enforces authorization and exact action approvals. Error and retry guidance →