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

Annotations already declare readOnlyHint=true and openWorldHint=true, so the safety profile is covered. The description adds only the '(AniList)' provenance hint, which is useful but thin; it says nothing about pagination limits, result shape, or search behavior beyond the schema.

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 five-word fragment with no padding and is front-loaded, but its brevity reflects under-specification rather than disciplined conciseness. It is efficient yet insufficient for the tool's scope.

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?

An output schema exists so return values need not be explained, and the schema fully covers inputs. However, the description provides no scope, no differentiation from the many sibling anime/manga search tools, and no usage context, leaving an agent unable to route to it confidently.

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% with all four parameters (query, page, per_page, sort) documented, including defaults, clamping, and allowed sort values. The description adds no parameter meaning beyond that, so the baseline 3 applies.

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 says 'Anime search (AniList)', which identifies the verb and resource plus the data source, but it is essentially a restatement of the tool name. It does nothing to distinguish this from siblings such as anime_title, anime_character_search, anime_rankings, or manga_search.

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 when-to-use guidance, no mention of alternatives, and no indication of scope (e.g., whether it searches titles only or also characters/staff). The agent must infer everything from the name.

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