Dueback MCP

{
  "type": "object",
  "title": "detect_negotiable_billArguments",
  "required": [
    "expense_description"
  ],
  "properties": {
    "amount_cents": {
      "anyOf": [
        {
          "type": "integer"
        },
        {
          "type": "null"
        }
      ],
      "title": "Amount Cents",
      "default": null,
      "description": "The amount charged, in cents (e.g. 8500 means $85.00), if known."
    },
    "counterparty": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Counterparty",
      "default": null,
      "description": "The company that charges the bill (e.g. 'Comcast'), if known."
    },
    "observed_signals": {
      "anyOf": [
        {
          "type": "array",
          "items": {
            "type": "string"
          }
        },
        {
          "type": "null"
        }
      ],
      "title": "Observed Signals",
      "default": null,
      "description": "Facts suggesting the price may be negotiable or incorrect — e.g. a recent increase, a lower advertised price, a billing error, a competitor offer, or long customer tenure. Omit if none."
    },
    "expense_description": {
      "type": "string",
      "title": "Expense Description",
      "description": "Plain-language description of the bill or expense — what the charge is for, e.g. 'monthly home internet bill'."
    }
  }
}

{
  "type": "object",
  "title": "detect_negotiable_billDictOutput",
  "additionalProperties": true
}

{
  "title": "Detect negotiable bill",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

{
  "type": "object",
  "title": "start_negotiation_caseArguments",
  "required": [
    "expense_description"
  ],
  "properties": {
    "amount_cents": {
      "anyOf": [
        {
          "type": "integer"
        },
        {
          "type": "null"
        }
      ],
      "title": "Amount Cents",
      "default": null,
      "description": "The amount charged, in cents (e.g. 8500 means $85.00), if known."
    },
    "counterparty": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Counterparty",
      "default": null,
      "description": "The company that charges the bill (e.g. 'Comcast'), if known."
    },
    "billing_period": {
      "type": "string",
      "title": "Billing Period",
      "default": "unknown",
      "description": "How often the charge recurs: 'monthly', 'annual', or 'one_off' for a single purchase. Use 'unknown' if unsure — it affects how savings are calculated."
    },
    "automatic_change": {
      "type": "boolean",
      "title": "Automatic Change",
      "default": false,
      "description": "True only if the lower price already took effect automatically (e.g. the provider dropped the rate on its own) rather than through negotiation. Otherwise false."
    },
    "observed_signals": {
      "anyOf": [
        {
          "type": "array",
          "items": {
            "type": "string"
          }
        },
        {
          "type": "null"
        }
      ],
      "title": "Observed Signals",
      "default": null,
      "description": "Facts suggesting the price may be negotiable or incorrect — e.g. a recent increase, a lower advertised price, a billing error, a competitor offer, or long customer tenure. Omit if none."
    },
    "expense_description": {
      "type": "string",
      "title": "Expense Description",
      "description": "Plain-language description of the bill or expense — what the charge is for, e.g. 'monthly home internet bill'. Use the same facts as the approved detect_negotiable_bill call."
    }
  }
}

{
  "type": "object",
  "title": "start_negotiation_caseDictOutput",
  "additionalProperties": true
}

{
  "title": "Start negotiation case",
  "readOnlyHint": false,
  "openWorldHint": true,
  "idempotentHint": false,
  "destructiveHint": false
}

{
  "type": "object",
  "title": "get_case_statusArguments",
  "required": [
    "case_id"
  ],
  "properties": {
    "case_id": {
      "type": "string",
      "title": "Case Id",
      "description": "The case_id returned by start_negotiation_case or list_my_cases."
    }
  }
}

{
  "type": "object",
  "title": "get_case_statusDictOutput",
  "additionalProperties": true
}

{
  "title": "Get case status",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

{
  "type": "object",
  "title": "list_my_casesArguments",
  "properties": {}
}

{
  "type": "object",
  "title": "list_my_casesDictOutput",
  "additionalProperties": true
}

{
  "title": "List my cases",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

{
  "type": "object",
  "title": "list_verified_savingsArguments",
  "properties": {}
}

{
  "type": "object",
  "title": "list_verified_savingsDictOutput",
  "additionalProperties": true
}

{
  "title": "List verified savings",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}