get_movie_by_id

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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, covering the safety profile. The description adds no extra behavioral context such as return format, pagination, or authentication requirements. It is consistent but adds minimal value beyond annotations.

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 extremely concise: 'Read Movie.' followed by the endpoint and a one-line argument listing. It is front-loaded with the purpose and contains zero fluff, making it efficient and well-structured.

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 simple read operation with one parameter and an output schema present, the description is mostly adequate. However, it lacks any differentiation from similar tools like get_movie_by_id_folder and provides no context on the movie ID's meaning or usage scenarios. These are minor gaps given the simplicity of the tool.

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 a single integer 'id' with no description. The description states 'id: Path parameter,' which is already evident from the endpoint URL and adds little semantic meaning. It does not explain what the ID represents or any constraints, so it fails to compensate for the schema's lack of description.

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 'Read Movie' with the endpoint GET /api/v3/movie/{id}, making the verb and resource clear. However, it does not differentiate from siblings like get_movie_by_id_folder, which may also fetch movie-related data by ID, so it lacks sibling differentiation.

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?

There is no guidance on when to use this tool versus alternatives. It only provides the endpoint and argument, with no mention of scenarios, exclusions, or alternatives. The agent must infer usage from the name and context.

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