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Harshal12355

MTG Deckbuilder MCP

by Harshal12355

get_card_rulings

Retrieve official Magic card rulings and Gatherer notes with oracle text. Resolve rules disputes and confirm card interactions.

Instructions

Official rulings and Gatherer notes for a card, plus its oracle text for context.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
nameYes

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

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?

With no annotations provided, the description carries the full behavioral-disclosure burden. It identifies the content returned, but does not state that this is a safe read-only retrieval, mention rate limits or permissions, or otherwise describe operational behavior.

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?

A single, front-loaded sentence with no wasted words. It states what the tool returns and the extra oracle-text context efficiently.

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?

For a simple one-parameter retrieval tool with an output schema, the description is mostly sufficient about purpose and content. However, it omits usage routing and parameter format details, and with no annotations it leaves behavioral context unaddressed.

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

Parameters2/5

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

Schema description coverage is 0% for the single required parameter, so the description must compensate. It only implies a card is required via 'for a card'; it does not specify that the parameter is a card name, whether exact spelling is required, or any format expectations.

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 states a specific resource and scope: official rulings and Gatherer notes for a card, plus oracle text. This is clear enough for an agent to know what the tool returns, though it does not explicitly distinguish itself from siblings like get_card or search_cards.

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 when-to-use guidance is given. The description implies it is for rulings, but it never says when to choose this over get_card or other sibling tools, nor does it state any prerequisites or exclusions.

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