racingandsports_match_list

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

With no annotations, the description carries the full burden. It explicitly states the feed is 'Cloudflare-challenged from datacenter IPs,' alerting the agent to potential access issues. This is valuable behavioral context beyond the basic purpose. However, it does not detail other traits like rate limits or data freshness.

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 extremely concise—two sentences that cover purpose, constraint, and return shape. Every sentence adds value with no wordiness or repetition.

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?

Given no output schema, the description only vaguely mentions the return shape ('served to the site's XHR'). It lacks details on the structure or fields of the fixture feed, which could be important for an agent to process results. However, the tool is simple with no parameters, so the gap is moderate.

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, and schema coverage is 100% (trivially). Per guidelines, baseline is 4 when there are no parameters. The description does not need to add parameter information.

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 clearly states it returns a list of sports matches (non-racing fixtures) from the site, distinguishing it from racing-specific tools. The phrase 'non-racing fixtures feed' makes the purpose and scope explicit.

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?

The description indicates it is for non-racing sports fixtures, which helps differentiate from racing tools. However, there is no explicit guidance on when to use this generic feed versus other sports-specific match list tools (e.g., afl_matches_list, nba_schedule) among siblings. The Cloudflare note is a constraint but not a usage alternative.

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