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

With readOnly/idempotent/non-destructive already carried by annotations, the description adds substantial extra context: computation method (possessions per 40 minutes, overtime removed), the source (box scores, BankrollSZN), hourly refresh on game days, and a benchmark (mean miss 3.04 possessions over 588 games vs 3.38 for league average). This is exactly the beyond-annotations disclosure the dimension rewards.

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?

Purpose and the primary scope constraint are front-loaded, and the enumeration of the two views is organized. It runs long with a dense run-on inventory of output fields, but since no output schema exists that enumeration is largely load-bearing rather than padding.

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, so the description carries the return-shape burden and does so thoroughly for both views, plus methodology, refresh cadence, and accuracy provenance. Nothing material for correct invocation appears to be 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 coverage is 100%, so the baseline is 3, but the description goes further by defining the tier values in output terms (Up, Neutral, Slow with a market-disagreement flag) and clarifying that view teams exposes a specific set of ratings that map to sort_by candidates. It leaves team/limit/sort_by syntax to the schema, which is acceptable given full coverage.

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+resource (WNBA pace / possessions per 40 minutes, OT removed) plus the data provenance (BankrollSZN from box scores), and explicitly separates the two modes the tool supports (view games vs view teams). An agent can distinguish this from the sport-specific siblings like invoke_nba_pace or invoke_wnba_projections without opening the 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 description explains what each view returns and flags 'view games (default)', which tells the agent which mode to reach for by default and when the teams mode is warranted. It never names an alternative tool or states when NOT to use this one, so routing is implied rather than explicit.

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