get_character

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

With no annotations, the description carries the full burden of behavioral disclosure, but it only notes that the result includes a description. It does not disclose read-only status, error behavior, or authentication requirements, which is a significant gap for a tool invocation.

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?

The description is a single concise sentence with no wasted words, but it is under-specified. It prioritizes brevity over actionable detail, so while it is structurally fine, it does not fully earn its place due to missing important information.

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?

The tool is simple with one required parameter and an output schema, but the description does not provide enough contextual information for an AI agent to select it appropriately among many sibling character tools, nor does it clarify behavior beyond the minimal 'get.'

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?

The input schema has zero description coverage for character_id, and the tool description does not explain what the parameter represents or how to format it. The name 'character_id' is self-evident, but the description adds no additional meaning to compensate for the lack of schema documentation.

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 clearly states the action ('Get') and the resource ('a character'), including a hint about content ('including its description'). However, it does not explicitly distinguish this from sibling tools like list_characters or search_characters, though the singular phrasing and required character_id imply a single record fetch.

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 usage guidance is provided. The description does not mention when to use this tool over list_characters or search_characters, nor does it state any prerequisites or alternatives.

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