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

Annotations already declare readOnlyHint=true and openWorldHint=true, so the safety profile is covered. The description adds one genuinely useful behavioral detail beyond the annotations: the output is in the provider's raw delimited format, which signals parsing may be needed. It omits anything about coverage/completeness of the stats or failure modes.

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?

A single efficient sentence with no filler; the format caveat is front-loaded. It is appropriately sized, though it is arguably too terse for a tool with this many near-namesake siblings.

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 values need not be explained, and the lone parameter is fully specified. What is missing is disambiguation from the dense cluster of flashscore_match_* tools, which is the main contextual gap an agent would face.

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% and the single id parameter is well documented in the schema itself ('Eight-character Flashscore match id from a public match URL'). The description adds no parameter-level detail, so the baseline 3 applies.

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 states a specific resource (match statistics) and flags the output format ('raw delimited format'), so an agent knows what it returns. However, it does not differentiate this tool from the numerous closest siblings (flashscore_match_info, flashscore_match_lineups, flashscore_match_standings, flashscore_match_h2h), leaving selection ambiguous.

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 guidance, no mention of prerequisites (e.g. needing a match id first), and no pointer to alternatives among the sibling match-data tools. The agent must infer usage from the name alone.

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