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MCP tool

launch_campaign

Activate every pending/errored channel-campaign via its adapter (API channels go live or pending-approval; workflow channels like cinema/AdSmart start a booking workflow). Sandbox workflow lines can also resume here. Live paid-media activation stages provider objects paused; a human must record exact provider creative approval and issue fresh supplier authority before resume can enable the manifest-bound hierarchy. Before first launch, every campaign line must have at least one selected creative for the same channel with a completed, non-failing policy precheck; generate_creative with campaignId attaches new work automatically, or use set_campaign_creatives to select reusable existing work. Returns the refreshed campaign plus per-line launchErrors if any adapter failed.

Input

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

Input JSON Schema
{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "campaignId": {
      "type": "string",
      "description": "campaign id, e.g. cmp-1a2b3c4d"
    },
    "agentStepId": {
      "type": "string",
      "minLength": 1,
      "maxLength": 128,
      "description": "pending execute-step id that consumed the exact approved action"
    },
    "expectedActionDigest": {
      "type": "string",
      "pattern": "^[a-f0-9]{64}$",
      "description": "SHA-256 digest returned for the exact approved action"
    }
  },
  "required": [
    "campaignId",
    "agentStepId",
    "expectedActionDigest"
  ]
}

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/campaigns/{campaignId}/launch",
  "pathFields": [
    "campaignId"
  ],
  "pathSchema": {
    "type": "object",
    "properties": {
      "campaignId": {
        "type": "string",
        "description": "campaign id, e.g. cmp-1a2b3c4d"
      }
    },
    "additionalProperties": false,
    "required": [
      "campaignId"
    ]
  },
  "pathEncoding": "encodeURIComponent for each path field",
  "governedAction": "campaign.launch",
  "headers": {
    "x-chorus-agent-step-id": "agentStepId",
    "x-chorus-agent-action-digest": "expectedActionDigest"
  },
  "body": null,
  "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": {},
  "additionalProperties": {}
}

Safety annotations

MCP annotations
{
  "readOnlyHint": false,
  "destructiveHint": true,
  "idempotentHint": false,
  "openWorldHint": true
}

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

launch_campaign | AdBuyMCP docs