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

With no annotations, the description carries the full burden and does an excellent job: it discloses the $5 per call cost, one-call-for-whole-day behavior, payment authentication methods (x402 or API key), legal/age warnings, that proprietary park/weather/sim/Statcast data is used internally and not redistributed, and that roster/injury/lineup info is verified. This is exemplary transparency.

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 dense but well-structured, starting with the cost and core purpose, then drilling into content, disclaimers, and payment. Every sentence provides meaningful information, though it is longer than necessary and could be slightly more scannable with line breaks or a shorter payment explanation.

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?

Given no output schema and no annotations, the description covers nearly all critical context: content, cost, payment, legal, and data sourcing. Missing elements are explicit guidance on the 'date' parameter format/defaults and a description of the response structure. Otherwise it is very complete for a single-sheet daily data tool.

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?

The schema has one parameter 'date' (type string, default '') with 0% description coverage. The tool description never mentions the date parameter at all—no format (e.g., YYYY-MM-DD), no default behavior, no example. While the parameter name is self-explanatory, the description adds no value beyond the schema and fails to clarify how to request a specific day.

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 clearly identifies the tool as retrieving the 'FULL daily MLB props sheet' and enumerates specific content (HR & hits+runs+RBIs picks, batter-vs-pitcher matchups, SP strikeout plays, etc.). The use of 'FULL' and 'whole day's sheet' distinguishes it from sibling tools like get_mlb_top_picks and get_sports_props.

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?

It clearly states when to use the tool (for the full day's entire sheet) and directs users to browse the catalog first, but does not explicitly name alternative sibling tools or state when NOT to use this one. The distinction from a top-picks variant is implied but not explicit.

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