update_myanimelist

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

No annotations are provided, so the description must fully bear the burden of behavioral disclosure. It states the tool updates the authenticated user's list, implying a write operation, but does not mention potential side effects, authorization requirements beyond 'authenticated', rate limits, or whether the update is reversible. The parameter list provides some detail but lacks behavioral context.

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 front-loaded with a clear purpose sentence, followed by a structured Args list. It is appropriately sized for a tool with 10 parameters, though the Args section is repetitive of the schema. No unnecessary fluff is present.

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 has 10 parameters and no output schema, the description explains what the tool does and lists all parameters, but it lacks information about return values, error handling, or behavior when optional parameters are omitted. The description is adequate for basic usage but not complete for a multi-parameter mutation 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?

Schema description coverage is 100%, and the description largely repeats the schema parameter descriptions (e.g., 'score: The score given to the anime (0-10).') without adding new semantic value. The description does not clarify parameter interactions, default behaviors beyond schema, or usage patterns, so it adds minimal value over the schema.

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 (Updates) and the target resource (anime's status in MyAnimeList), with enough specificity to distinguish from sibling tools like update_mymangalist. The first sentence is a complete and unambiguous purpose statement.

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?

The description implies usage for updating anime list entries but does not explicitly state when to use this tool versus alternatives, nor does it mention prerequisites or exclusions. The context of being an 'update' tool is clear, but no direct comparison to siblings is provided.

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