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Zach-Houston

retroachievements-mcp

by Zach-Houston

Get extended game info

ra_game_extended

Retrieve complete game details and achievement list, including title, description, points, badge, and unlock counts.

Instructions

Full game info including the achievement list (id, title, description, points, badge, unlock counts).

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
gameIdYesRetroAchievements game ID
isRequestingUnofficialAchievementsNoInclude unofficial / dev-only achievements (default false)
Behavior3/5

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

No annotations are provided, so the description carries the full burden. It discloses the returned data structure but does not mention read-only nature, rate limits, or other 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.

Conciseness5/5

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

The description is a single sentence that efficiently communicates the tool's purpose and output. It is front-loaded and every word adds value.

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?

Given no output schema, the description provides the key fields for achievements but is vague about 'full game info'. It could list additional top-level fields or indicate the scope of the response.

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 schema already describes both parameters with 100% coverage. The description adds no extra meaning beyond what the schema provides, so baseline score of 3 is appropriate.

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 the tool returns 'Full game info including the achievement list' with specific fields. This distinguishes it from the sibling tool 'ra_game' which likely provides basic info.

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 use for extended info, but does not explicitly state when not to use or mention alternatives. The context is clear from the tool name and title.

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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