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REE MCP Server

REE MCP Server

by ESJavadex
OverviewSchemaSourceRelated ServersDiscussionsAdmin
Python
Remote

get_pvpc_rate

Retrieve the PVPC regulated electricity rate for a specific date and hour in Spain. Provides the official retail price for small consumers (Precio Voluntario para el Pequeño Consumidor).

Instructions

Get the PVPC regulated electricity rate at a specific time.

Returns the PVPC (Precio Voluntario para el Pequeño Consumidor) rate, which is the regulated retail electricity price for consumers in Spain.

Args: date: Date in YYYY-MM-DD format hour: Hour in HH format (00-23, default: 12)

Returns: JSON string with PVPC rate data.

Examples: Get PVPC rate at noon on Oct 8: >>> await get_pvpc_rate("2025-10-08", "12")

Get PVPC rate at midnight:
>>> await get_pvpc_rate("2025-10-08", "00")

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": {
      "date": "<date>"
    },
    "name": "get_pvpc_rate"
  }
}

Input Schema

NameRequiredDescriptionDefault
dateYes
hourNo12

Output Schema

NameRequiredDescriptionDefault
resultYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. Addedv1.0.0

TDQS

A4.2/5.0
Behavior3/5

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

No annotations are provided, so the description carries full burden. It states the return type (JSON string) and provides examples, but does not disclose if the operation is read-only, any side effects, or potential errors. Given the lack of annotations, the description is adequate but could be more explicit about behavioral traits.

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?

The description is well-structured with Args, Returns, and Examples sections. It is concise but covers necessary details. Could be slightly more streamlined, but overall efficient for a two-parameter tool.

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?

Given that an output schema exists (though not shown), the description does not need to detail return structure. It adequately covers input parameters, default, and format, with examples. The description is complete for a simple data retrieval tool, though additional context about the data range or rate source could enhance completeness.

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

Parameters5/5

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

Schema description coverage is 0%, so the description adds critical meaning. It specifies the exact format for 'date' (YYYY-MM-DD) and 'hour' (HH format, 00-23, default 12), which the schema lacks. This fully compensates for the absence of property descriptions in the schema.

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

Purpose5/5

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

Description explicitly states the tool retrieves the PVPC regulated electricity rate at a specific time, with clear context about it being the Spanish regulated retail price. It uses a specific verb ('Get') and resource ('PVPC rate'), distinguishing it from siblings like 'get_spain_hourly_prices'.

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?

The description provides parameters, default values, and concrete examples, making usage clear. However, it does not explicitly guide when to use this tool vs alternatives or mention any prerequisites or exclusions, which could be improved.

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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