list_charactersList/paginate the Disney character database. Returns a page of characters (id, name, image URL) plus total count and total page count. Useful for browsing the full catalog.
| Name | Required | Description | Default |
|---|---|---|---|
| page | No | Page number, 1-based (default 1). | |
| pageSize | No | Characters per page (default 20). |
Changes observed during successful MCP inspections.
Input schema / examplesAdded value: +[
+ {
+ "page": 1
+ },
+ {
+ "page": 2,
+ "pageSize": 50
+ }
+]Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint, openWorldHint, idempotentHint, and destructiveHint. The description adds return format details but no additional behavioral traits (e.g., pagination limits, caching).
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?
Two concise sentences: first states purpose, second explains return structure and use case. No unnecessary words.
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?
Given thorough annotations and complete schema, the description adequately explains the tool's output and purpose. Lacks an output schema but describes return fields.
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 coverage is 100%, with each parameter already described. The description does not add new semantic information beyond the schema's property descriptions.
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?
Clearly states the verb 'list/paginate' and resource 'Disney character database' with explicit return fields (id, name, image URL, total count, total page count). Could improve by differentiating from the sibling 'search_characters'.
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?
Mentions 'useful for browsing the full catalog' but provides no when-not-to-use or explicit alternative. The sibling 'search_characters' exists but is not referenced.
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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