Update my anime status

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

Description discloses upsert behavior (creates if absent) and a requirement (at least one field), adding behavioral context beyond annotations. Annotations indicate idempotent and non-destructive, which description supports.

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?

Description is very concise, with three short sentences that front-load the core purpose and a key constraint. 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?

Description covers the primary behavior and a key usage rule. However, it does not mention return values or error handling, but given lack of output schema and simple use case, it is nearly complete.

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%, so description adds minimal parameter detail. However, it provides a useful constraint ('Provide at least one field besides anime_id') that is not in schema 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?

Description clearly states the action (add/update), resource (anime on user's list), and key condition (creates if absent). Distinguishes from siblings like delete_my_anime_list_item and get_my_anime_list.

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?

Description indicates when to use (when adding/updating anime on list) and a key guideline (provide at least one field besides anime_id). However, it does not explicitly say when not to use or mention alternatives like delete.

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