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gamelibs-mcp

gamelibs-mcp

by AliSoftware
OverviewSchemaSourceRelated ServersDiscussionsAdmin
Python
Hybrid

epic_get_login_url

Get the Epic Games login URL, sign in there, and copy the authorization code to authenticate your Epic account.

Instructions

Get the Epic login URL. Sign in there, then copy the authorizationCode for epic_login.

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "epic_get_login_url"
  }
}

Input Schema

NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

A4.2/5.0
Behavior3/5

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

There are no annotations, so the description carries the behavioral burden. It does disclose the interactive nature: the user must sign in and copy an authorizationCode. However, it omits details like URL expiry, side effects, or whether existing authentication affects the call.

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

Conciseness5/5

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

Two sentences with no filler. The primary action is front-loaded, and the second sentence adds necessary flow context. Every word earns its place.

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?

For a zero-parameter tool with no output schema, the description provides the essential return value and the next step in the auth flow. It omits minor context such as exact output format or URL expiration, but nothing prevents a correct invocation.

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

Parameters4/5

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

The tool has zero parameters and schema coverage is effectively complete, so the baseline is 4. The description does not need to describe parameter behavior, and it introduces no parameter ambiguity.

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?

The description uses a specific verb and resource: 'Get the Epic login URL.' It also clearly positions itself as the precursor to epic_login, distinguishing this tool from its sibling that actually consumes the authorizationCode.

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 gives clear sequential guidance: get the URL, sign in there, then copy the authorizationCode for epic_login. It does not explicitly enumerate when-not-to-use cases or alternatives, so it stops short of a top score.

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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