@marocain/mcp-server

get_gin_score

Retrieve the GIN score for a listing by ID, combining quality and deal metrics into a single buy, hold, or pass verdict.

Instructions

The {GIN} coherent verdict for a listing: the Quality pillar (asset, compute_marocain_score), the Deal pillar (price-vs-AVM + momentum) and the one fused buy/hold/pass verdict. The authored number an investor can defend.

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": {
      "id": "<id>"
    },
    "name": "get_gin_score"
  }
}

Input Schema

Name	Required	Description	Default
`id`	Yes	Listing id (UUID).

Schema Changelog

Changes observed during successful MCP inspections.

First observedv0.1.9Aug 14, 2026

TDQS

B3.1/5.0

Behavior3/5

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

With no annotations, the description carries the burden of behavioral disclosure. It usefully details the output components (Quality, Deal, fused verdict), but it does not mention whether the operation is read-only, potential errors, or permissions required. It adds value in explaining the output structure but falls short of full transparency.

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

Conciseness3/5

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

The description is a single, somewhat convoluted sentence with jargon and a placeholder (`{GIN}`, `compute_marocain_score`). It is not excessively long, but the structure could be clearer and more direct, detracting from its effectiveness.

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

Completeness3/5

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

Given the lack of an output schema, the description outlines the key return components, which is helpful. However, it omits details about the response format, value ranges, or error behavior. The tool's simplicity (one parameter) means the moderate completeness level is acceptable but not exemplary.

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?

The schema already provides 100% coverage for the single parameter `id`, describing it as a UUID listing ID. The description adds no additional meaning about the parameter, so the baseline of 3 applies since no compensation is needed.

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?

The description clearly states that the tool provides a coherent GIN verdict for a listing, enumerating the Quality pillar, Deal pillar, and fused buy/hold/pass verdict. This makes the tool's function clear, though it lacks a direct verb and does not explicitly differentiate from sibling tools like `gin_ask` or `get_listing`.

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

Usage Guidelines2/5

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

There is no explicit guidance on when to use this tool compared to alternatives. The description only implies it is for obtaining a verdict, without any 'use this when' or 'instead of' direction, leaving the agent to infer the appropriate context.

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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