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

Annotations declare readOnlyHint=true and openWorldHint=true, so the safety profile is already covered. The description's use of 'suggestions' hints at autocomplete-style behavior, which is mildly useful context, but it says nothing about result limits, pagination, or ranking of the returned matches.

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 the action front-loaded and no wasted words. Slightly undermined by the vague phrase 'FotMob suggestions', which is less precise than the entity-list that follows it.

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 tool is a simple one-parameter search, which the description matches. The gap is the lack of any positioning against the many fotmob_* sibling tools for a discovery-style endpoint.

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% with a single documented parameter (term, 1-50 characters). The description adds no meaning beyond what the schema already states, so the baseline 3 for full schema coverage 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?

States a specific verb (search) and resource (FotMob entities), and enumerates the four searchable entity types (leagues, teams, players, matches), which tells the agent this is a cross-entity search. It does not however distinguish itself from sibling entity-specific tools like fotmob_leagues, fotmob_team or fotmob_matches, leaving the agent to guess when the broad search is preferable.

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?

No when-to-use guidance, no exclusions, no mention of alternatives. With a large fotmob_* sibling set (fotmob_matches, fotmob_trending_searches, fotmob_leagues), the description never says whether this is a first-pass discovery tool or a replacement for the entity lookups.

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