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

Annotations already indicate readOnlyHint and openWorldHint, so the description's role is lighter. It adds useful context by naming the public feed source (ESPNcricinfo) and the caveat 'where available', which signals that scores may be missing. There is no contradiction with annotations, but no further behavioral detail such as refresh behavior is provided.

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?

The description is a single concise sentence that packs in the resource, scope, score availability, and data source. Every word earns its place, and useful information is front-loaded without superfluous detail.

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?

For a simple no-parameter tool with no output schema, the description conveys the core return content: live/upcoming matches and scores where available. It does not specify output structure or data freshness, but those are less critical given the tool's simplicity and the read-only annotations.

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?

The tool has zero parameters, so the schema coverage is trivially 100%. The baseline for a no-parameter tool is 4; the description appropriately does not need to explain parameter meaning and does not introduce confusion.

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 identifies the specific resource (currently live and upcoming cricket matches) and adds scope via the ESPNcricinfo source. It distinguishes itself from siblings like cricket_match_archive (past matches) and other stats-focused tools, though it uses a noun phrase rather than an explicit verb like 'list' or 'get'.

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 explicit guidance on when to use this tool versus alternatives. The phrase 'currently live and upcoming' implies it is for current matches, but it does not say to use cricket_match_archive for historical data or mention any other exclusions or alternative conditions.

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