getmediabyid

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

Since no annotations are present, the description carries full responsibility for behavioral disclosure. It fails to mention authentication requirements, what happens when the ID is not found, or any side effects (likely none). The description adds no behavioral context beyond the tool's name.

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 sentence that is efficient and front-loaded. However, it is perhaps too concise at the expense of completeness. Every word earns its place, but the tool might benefit from one or two more sentences for 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?

Given the tool's simplicity (one required parameter, no output schema), the description is mostly adequate but lacks mention of return value or error behavior. An agent may need to infer from the name what the tool returns. Slightly incomplete for a production 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 coverage is 100% with one parameter 'id' described as 'Media Id'. The description does not add meaning beyond the schema, earning a baseline score of 3. No additional detail about the parameter format or constraints is provided.

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 'Gets media item by ID' clearly states the action and resource. However, it does not explicitly differentiate from sibling 'getmedia' which likely returns multiple items. The name itself implies a single-item retrieval, but the description could be more explicit about its scope.

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 guidelines are provided. The description does not indicate when to use this tool versus alternatives like 'getmedia' (for listing) or other media-related tools. The agent receives no guidance on context or exclusion criteria.

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