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

Annotations already declare readOnly, idempotent, non-destructive, and closed-world behavior, so the safety profile is covered. The description adds content scope by listing return fields, but does not disclose any further behavioral traits such as data freshness or form-resolution rules.

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?

A single sentence that front-loads the resource and lists returned data in a compact series. Every word earns its place with no redundancy.

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-only lookup with a fully documented single parameter and annotations covering safety, the description supplies the full set of returned fields an agent needs. Nothing about calling the tool correctly is left unclear.

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%, and the schema itself documents that the 'pokemon' parameter accepts a name or id with examples. The description's phrase 'one Pokémon form' hints that form-specific names are valid, but adds no syntax or format detail beyond 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 names the resource (one Pokémon form) and enumerates the exact data returned (types, base stats, max CP, weaknesses, movesets, raid matchups), making it easy to distinguish from event/raid-list siblings. However, it uses a noun phrase rather than a verb, so it falls short of a fully explicit 'get' action.

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 guidance is provided on when to choose this tool rather than max_counters, raid_counters, or the other siblings. The agent must infer from the tool name and output list that this is for retrieving a single Pokémon's details.

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