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

Annotations already declare readOnly/idempotent/non-destructive/closed-world, so safety is covered. The description adds genuine context beyond annotations: the 10-day kickoff window and the exact per-line payload (teams, kickoff, status, result, most likely score, group calls). It does not discuss limit/pagination behavior, but the additions are substantive.

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?

Front-loads the core identity (matches with expert predictions) and then adds filters and return content. Two tight sentences; the only density is a long first sentence, but every clause (filters, window, line contents) earns its place.

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 no output schema, the description usefully explains the returned columns, and all parameters are schema-covered. For a read-only filtered search tool the definition is nearly complete, lacking only explicit guidance on limit/pagination behavior and sibling routing.

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 all seven parameters are already documented, including enum meanings for mode and status. The description restates the filterable fields and adds the kickoff-window interpretation, but adds little beyond the schema's own enum descriptions. Baseline 3 is appropriate.

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 and resource (find football/soccer matches with TipMaster expert predictions) plus the filters and a description of each returned line. It is clear on its own, but it does not explicitly distinguish itself from siblings like list_matches or get_match_prediction, leaving the agent to infer the boundary.

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 scope note about 'upcoming (locked), live and finished (played) matches of the last 10 days' implies the retrieval window and helps orient usage. However, there is no explicit when-to-use vs alternatives (e.g., no hint that get_match_prediction returns a single match or that list_matches might be a leaner listing).

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