getDomains

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

No annotations are present, so the description carries the behavioral burden. It explicitly declares 'Read-only', states the HTTP method, and provides a rate limit (100 requests per 1m), all of which are useful. It does not mention response format or pagination, but the core safety profile 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?

Every piece of text earns its place: the operation, the rate limit, the read-only hint, and the endpoint. It is front-loaded with the core action and contains no filler 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?

For a simple zero-parameter read-only list, the description covers the operation, method, and rate limit. It could add guidance on response shape or pagination, but the low complexity and existing details make the definition largely complete.

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 input schema has no parameters and schema coverage is 100%, so there are no parameter semantics for the description to add. The baseline of 4 applies because there is nothing undocumented to compensate for.

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 opens with 'List domains', a specific verb and resource, and also names the exact endpoint 'GET /postframe/domains'. This clearly distinguishes it from the related sibling 'getDomainsById' and other list/get 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 makes the use case clear: list all domains. It also signals this is a read-only operation via 'Read-only' and the GET method. It does not explicitly compare with getDomainsById, but the context is strong enough for a zero-parameter list tool.

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