get_player_profile

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

No annotations are provided, so the description carries the burden; the 'get' framing and the list of returned data imply a read-only lookup, and enumerating peak rank, rank protection, and season results adds real context on scope. It does not state auth requirements, rate limits, or behavior for unranked/unrecognized players, which is a meaningful gap for an annotation-free tool.

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 tight sentence that front-loads the core value ('Account info plus ranked state') and then enumerates the specifics. No filler or 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?

An output schema exists and both parameters are fully documented, so the description only needs to convey scope — which it does by naming the ranked fields returned. Minor gaps remain around unranked players and region defaults interacting with the parameter, but nothing essential to invoking it is missing.

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 username (Riot ID name#TAG) and region (na/eu/ap/kr/latam/br, server default) fully documented in the schema. The description adds nothing about either parameter, so 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?

States a specific verb (implicitly 'get') and resource (player profile) and enumerates the returned content: rank/RR/elo, peak rank, rank protection, season results. An agent can tell it apart from get_rr_history or get_performance_report as a broad account-plus-ranked summary, though the description never explicitly contrasts itself with those siblings.

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?

Usage is implied by the name and content — fetch a player's overall account and ranked snapshot. There is no explicit when-to-use guidance and no routing to get_rr_history for detailed RR progression or get_performance_report for aggregated stats, leaving the agent to infer the choice.

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