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 still adds real context beyond them: the backing service calls Chess.com's Published-Data API serially (implying latency and a fixed upstream source) and imposes a usage restriction against AI training or dataset creation, which an agent cannot infer from annotations.

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?

Purpose is front-loaded in the first sentence and the disclaimer follows, so the structure is sensible for a three-sentence definition. The affiliation/training disclaimer is defensible but is the weakest-earning sentence relative to invocation guidance.

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 described, and the single parameter is fully documented in the schema. Annotations cover the read-only/open-world profile; the only real gap is the absence of routing guidance against the many nearby sibling tools.

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 required parameter with 100% schema description coverage, so the schema does the documentation work. The description only implies that the id identifies a match; it adds no syntax, format, or sourcing guidance (e.g., where to obtain a valid match id), so 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?

"Get one public Chess.com team match" names a specific verb (get) and resource (team match) with a scope qualifier (one, public). The siblings chesscom_match_board, chesscom_match_live, and chesscom_club_matches make the resource boundaries relevant, and only the singular-vs-collection distinction is clear from the phrasing; the description never explicitly contrasts itself with the board/live variants.

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?

Usage is only implied: retrieve a single match, and it is a public one, so private data is out of scope. There is no statement of when to prefer this over chesscom_match_live, chesscom_match_board, or chesscom_club_matches, nor any prerequisite about where an id comes from.

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