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Monta MCP Server

Monta MCP Server

by nickknissen
OverviewSchemaSourceRelated ServersDiscussionsAdmin
Python
Remote

start_charge

Initiate a charging session at a specified charge point by providing its ID. Returns session details.

Instructions

Start a charging session at a specific charge point.

Args:
    charge_point_id: The ID of the charge point to start charging

Returns:
    Charge session details dictionary or error response

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": {
      "charge_point_id": "<charge_point_id>"
    },
    "name": "start_charge"
  }
}

Input Schema

NameRequiredDescriptionDefault
charge_point_idYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

C2.9/5.0
Behavior2/5

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

No annotations are present, so the description must fully disclose behavior. It only states the basic action without mentioning side effects (e.g., billing, availability changes), error states, or authorization needs.

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 brief and to the point, with a clear first sentence. The Args/Returns section is acceptable but could be omitted or integrated concisely. No wasted sentences.

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

Completeness2/5

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

Given the simplicity (1 param) and lack of output schema, the description is incomplete. It vaguely mentions 'Charge session details dictionary or error response' without specifics. No info on idempotency, timeouts, or pairing with stop_charge.

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 description adds some meaning to the single parameter 'charge_point_id' by describing its purpose ('The ID of the charge point to start charging'), which is absent from the schema (0% coverage). However, it lacks details on format, constraints, or valid values.

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 the action ('Start a charging session') and the resource ('at a specific charge point'), distinguishing it from sibling tools like stop_charge and get_* tools. However, it lacks specificity about the exact outcome or preconditions.

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?

No guidance is provided on when to use this tool versus alternatives, nor any prerequisites or when-not-to-use conditions. This leaves the agent without decision 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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