get_steam_player_summaries

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

Annotations already declare readOnlyHint, idempotentHint, openWorldHint, and destructiveHint=false, so the safety profile is covered. The description adds almost nothing beyond that—no note on auth requirements (the api_key parameter handles that), rate limits, response shape, or batch behavior beyond what the schema already states.

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 front-loaded sentence with no filler. It is efficient, though extremely terse for a tool with no output schema.

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 complete schema descriptions and full annotations, the definition is minimally adequate. However, with no output schema, the description could usefully say what a "profile summary" contains; that omission leaves a gap in completeness.

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%, so the schema already documents both api_key and steamids, including the comma-separated format and 100-ID limit. The description only restates that one or more Steam IDs are accepted, which is baseline support rather than added semantic value.

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 uses a specific verb ("Get") and resource ("Steam player profile summaries") scoped to one or more Steam IDs, which is clear enough for an agent to identify the operation. It does not explicitly distinguish itself from nearby siblings like get_steam_owned_games or get_steam_achievements, so it falls short of a 5.

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 guidance about when to use this tool versus alternatives such as get_steam_owned_games, get_steam_achievements, or get_steam_app_details. The phrase "for one or more Steam IDs" indicates scope but not selection criteria or exclusions.

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