lol-champion-metadata-resources

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

Annotations already indicate this is a read-only, non-destructive, idempotent operation with a closed world. The description adds valuable context by specifying the CSV output format and the specific fields returned (champion_id, key, name), which goes beyond what annotations provide. However, it doesn't mention potential rate limits, data freshness, or error handling.

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 two concise sentences that efficiently convey the tool's purpose, output format, and parameter effect. Every word serves a purpose with no redundancy or unnecessary elaboration, making it easy to parse and understand quickly.

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's low complexity (single parameter, read-only operation) and rich annotations, the description is reasonably complete. It specifies the output format (CSV) and fields returned, which compensates for the lack of output schema. However, it could benefit from mentioning whether this returns all champions or has limitations, and how the CSV is structured.

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 the 'lang' parameter fully documented in the schema including enum values and purpose. The description mentions that language determines champion names, which aligns with but doesn't add significant meaning beyond the schema. Baseline 3 is appropriate since the schema carries the full parameter documentation burden.

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 specific action ('Retrieves metadata'), resource ('all League of Legends champions'), and output format ('CSV format with champion_id, key, and name'). It distinguishes from siblings like 'lol-champion-meta-data' by specifying the CSV format and limited fields, making the purpose unambiguous and differentiated.

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 obtaining localized champion metadata in CSV format, but provides no explicit guidance on when to use this tool versus alternatives like 'lol-champion-meta-data' or other champion-related tools. It mentions the language parameter but doesn't clarify scenarios where this specific output format is preferred.

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