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HasData

by com.hasdata
OverviewDiscussionsAdmin

zillow_property: GET /

hasdata_zillow_property_getPropertyDetails
Read-only

Get Zillow Property Details

Fetches the full Zillow property page by URL/zpid, with optional agent email extraction. Returns address, list price, Zestimate and Rent Zestimate, price and tax history, beds/baths, living area, lot size, year built, home type, HOA, days on Zillow, listing description, features/amenities, photos, school assignments, walk/transit scores (building pages only), and listing agent/broker (plus email when enabled). Use for valuation models, CMA generation, investor underwriting, rental yield analysis, and enriching buyer/seller agent assistants with authoritative property data.

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "url": "<url>"
    },
    "name": "hasdata_zillow_property_getPropertyDetails"
  }
}

Input Schema

NameRequiredDescriptionDefault
urlYesThe URL of the property on Zillow. Must be a valid Zillow property URL.
extractAgentEmailsNoIf enabled, attempts to extract agent email addresses from the property details. Increases the cost of the request.

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observed

TDQS

A3.9/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already cover safety (readOnlyHint, non-destructive, openWeb). The description adds real behavioral context beyond that: agent-email extraction is optional and raises request cost, and walk/transit scores only exist for building pages. It does not discuss caching, rate limits, or failure modes on invalid URLs.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Front-loads the purpose in the first sentence, then a single dense sentence. The return-field enumeration is long, but it earns its place since no output schema exists. Slightly laundry-list-like but no wasted framing.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

With no output schema, the description carries the burden of explaining return values and does so thoroughly (price history, Zestimate, photos, school assignments, agent/broker). Remaining gap is the absence of failure/pagination behavior for what is a scraper-style fetch.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100%, so the schema already documents both url and extractAgentEmails. The description restates that input is a URL/zpid and that email extraction is optional and costlier, adding marginal value but no syntax or format detail beyond the schema. Baseline 3 is appropriate.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

States a specific verb+resource ("Fetches the full Zillow property page by URL/zpid") and clearly scopes it to a single property, which distinguishes it from the listing/search sibling hasdata_zillow_listing_getRealEstateListings. It does not explicitly name that sibling, so sibling differentiation is implied rather than stated.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Gives concrete use contexts (valuation models, CMA generation, investor underwriting, rental yield analysis, agent enrichment), which tells an agent when this tool fits. It stops short of naming alternatives or stating when-not-to-use, so it is clear context without exclusions.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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