list_playground_runs

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

Provides scope (read-only) and constraints on status and problem_set. However, does not mention pagination behavior, ordering, or potential performance impacts, leaving gaps given no annotations.

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?

Three concise sentences with front-loaded purpose. Could be slightly more streamlined, but overall efficient.

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?

With 6 parameters, no output schema, and no annotations, the description is too sparse. Missing pagination details, response format, and default behavior for optional parameters.

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?

Adds meaning for status (valid values) and problem_set (applicability), but leaves limit, cursor, model_id, and competition_id unexplained. Schema coverage is 0%, so description should do more.

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?

Clearly states it lists playground runs created by the caller for a competition. Distinguishes from sibling tools like submit_playground_run or get_playground_run, but could be more explicit about alternatives among list tools.

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?

Implied usage for listing runs, but no explicit guidance on when to use this tool over others or when not to use it. Sibling tools exist for specific actions.

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