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j4th
by j4th

complete_deck

Read-onlyIdempotent

Analyze a partial Magic: The Gathering decklist and recommend cards to complete it, balancing mana curve, card roles, and format-specific ratios.

Instructions

Identify gaps in a partial decklist and suggest cards to fill them.

Analyzes mana curve, card roles, and format-specific ratios, then suggests cards for underrepresented categories.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
decklistYesPartial decklist — card names already chosen
formatYesFormat to build for (e.g. 'standard', 'modern', 'commander')
commanderNoCommander name (required for Commander format)
budgetNoMaximum price per suggested card in USD
response_formatNoOutput verbosity: 'detailed' (default) or 'concise'detailed
Behavior4/5

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

Annotations already indicate readOnlyHint, idempotentHint, and openWorldHint. The description adds context by mentioning analysis of mana curve, card roles, and format-specific ratios, which goes beyond annotations.

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 the main purpose front-loaded in the first sentence. No wasted words; every sentence adds value.

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?

The description covers the tool's function well but omits details about the output format. Since there is no output schema, describing the return shape would improve completeness.

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?

Schema description coverage is 100%, so the schema documents all parameters adequately. The description does not add extra meaning beyond what is already in the input schema, warranting a baseline score of 3.

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 clearly states it identifies gaps in a partial decklist and suggests cards, using specific verbs and resource. It distinguishes from sibling tools like deck_analysis or suggest_cuts by focusing on filling underrepresented categories.

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 implies usage for partial decklists and mentions format-specific ratios, but does not explicitly state when not to use it or provide alternatives among siblings.

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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