marketbench.vercel.app WebMCP Tools, Schemas & Agent Capabilities

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marketbench.vercel.app

live Unverified (seed import) AI & Agents 6 tools imperative implementation

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A reproducible WebMCP benchmark for browser agents making economic decisions.

First seen 2026-11-05 · Last seen 2026-11-05 · Source: webmcp.com

Answer 3 · Act 3 · Transact 0 · Score: Not yet scored

Tool inspector

set_prices

act imperative

Stage exactly one complete price update for the current week.

Input schema

Property	Type	Required	Description
`prices`	array	yes	—
`rationale`	string	yes	—

Raw JSON schema

{
  "type": "object",
  "properties": {
    "prices": {
      "type": "array",
      "minItems": 3,
      "maxItems": 3,
      "items": {
        "type": "object",
        "properties": {
          "product_id": {
            "type": "string",
            "enum": [
              "water",
              "cola",
              "chips"
            ]
          },
          "price": {
            "type": "number",
            "minimum": 0.8,
            "maximum": 5
          }
        },
        "required": [
          "product_id",
          "price"
        ],
        "additionalProperties": false
      }
    },
    "rationale": {
      "type": "string",
      "maxLength": 240
    }
  },
  "required": [
    "prices",
    "rationale"
  ],
  "additionalProperties": false
}