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

Annotations already cover the safe-read profile (readOnly, idempotent, non-destructive), so the bar is lower. The description adds real behavioral context beyond them: free-tier access, newest-first ordering, and returned counts. It does not mention pagination or how the default limit of 50 behaves.

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?

Two tight sentences with no waste. The tier/access caveat and the core purpose are front-loaded ahead of the filter details, so the agent gets the essential framing immediately.

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?

No output schema exists, so the description carries the return-value burden, and it does state the shape (player and round counts, newest first). For a zero-required-parameter read-only list tool this is nearly complete; only pagination/limit behavior is left entirely to the schema.

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 baseline is 3. The description adds value by enumerating the concrete tour values (pga, dp_world, liv, lpga, korn_ferry, champions) that the schema leaves as a free-form string, and by confirming comma-separated multi-tour filtering semantics.

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 resource and scope: golf tournaments 'we hold round data for,' returned newest first with player and round counts. This implicitly separates it from the sibling propline_get_golf_rounds (rounds vs. tournaments) without the agent needing to open either schema.

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 'Free-tier endpoint' note gives useful cost/access framing, and the filter dimensions (tour, season) imply when the tool is appropriate. However, it names no alternative and gives no when-not guidance, such as routing to propline_get_golf_rounds for per-round detail.

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