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

Annotations already declare readOnlyHint=true and openWorldHint=true, so safety and global scope are covered elsewhere. The description adds essentially nothing on top of that — no mention of real-time refresh, whether results are limited to in-progress matches only, ordering, or coverage breadth across leagues and regions.

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?

It is a single short, front-loaded sentence with no filler, which is structurally clean. However, the brevity here reflects under-specification rather than economy — nothing beyond the tool name's own content is conveyed, so it does not earn its place as a distinct claim.

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?

An output schema exists, so return-value structure needn't be described, and annotations carry the safety profile. What remains missing is the behavioral context an agent needs: what counts as a 'live event', whether it is a global snapshot or scoped by competition, and freshness expectations for a time-sensitive live feed.

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?

There is a single parameter with 100% schema description coverage; the schema already states it is required and enumerates football, basketball, tennis. The description repeats the concept ('for a sport') without adding format, casing, or validity details, which is the expected baseline when the schema fully documents the parameter.

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 names the resource ('live events') and the scope ('for a sport'), so the agent can tell it returns live sporting events. But it has no real verb (list/retrieve/fetch) and gives zero differentiation from close siblings like sofascore_round_events, sofascore_team_events or sofascore_event, leaving the agent to guess which event-retrieval tool applies.

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?

There is no when-to-use or when-not-to-use guidance, and no alternatives are named despite an obvious cluster of related sofascore tools (event, round_events, team_events). The reader must infer that 'live' means currently in-progress fixtures, which is the only hint at selection criteria.

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