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

With no annotations, the description carries the disclosure burden and does meaningful work: it says the call is free, lists the data it returns, and states that unsupported venues return an error and are never charged. It does not mention auth, rate limits, or whether results are paginated, but the core behavior is disclosed.

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?

Two short sentences deliver the core purpose, the returned data fields, and the key limit/error behavior. The information is front-loaded and every clause earns its place.

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 parameterless list endpoint, the description covers what the tool returns, the cost behavior, and failure behavior. It does not specify response format, but with no output schema present and a simple list operation, the remaining gaps are minor.

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 no parametersable parameters, so there is no parameter meaning for the description to supplement. The baseline of 4 applies here; the description instead clarifies output fields and error semantics.

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 is specific and actionable: it returns every venue RFS currently scores, including pricing, payment terms, and data freshness. It clearly identifies the resource and output kind, though it does not explicitly contrast with the sibling get_syri_score and get_syri_status tools.

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 gives clear context: use this to see the full set of supported venuescars, and venues outside that set will error. It implies when this tool is appropriate but does not explicitly state alternatives or when to use get_syri_score or get_syri_status instead.

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