get_set_image

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 that the tool 'caches' a logo (implying a side effect of persistent storage), but doesn't explain what caching means behaviorally—does it overwrite existing cache, is cache persistent across calls, what happens on cache failure, or what the URI lifetime is. The cache side effect is mentioned but under-specified.

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

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

A single, tight sentence with no wasted words. It's efficient, though the brevity comes at the cost of under-specification. The one-sentence structure is appropriate for its length but fails to include essential context.

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

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

For a 2-parameter tool with a side-effecting 'cache' behavior, no annotations, and an output schema (indicating a non-trivial return value), the description is underspecified. It doesn't describe the return value format, cache behavior details, or parameter semantics. An output schema exists but the description doesn't complement it with behavioral or usage context.

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

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

Schema description coverage is 0%, and the description mentions neither parameter. The 'set_code_or_id' parameter's format ambiguity (is it a code like 'base1' or an ID?) is critical and left entirely to the schema's bare type string. The 'language' parameter's purpose and valid values are also undocumented.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description states it caches a set logo and returns an MCP image resource URI, which is a clear verb+resource. However, it doesn't distinguish from the sibling get_card_image tool or clarify how caching affects the result. The purpose is understandable but lacks differentiation from similar image tools.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

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 vs get_card_image or other get_set variants. The description doesn't mention prerequisites (e.g., whether the set must already be cached, or whether results are permanent) or scenarios where this tool is preferred over alternatives.

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