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

With no annotations, the description carries the full burden and does well: it discloses that unmatched hosts return found:false, that it never guesses a nearest match, and that the report has a date and URL to cite. Read-only behavior is implied but not harmful; the 'apparently' also clarifies that reported capabilities are indicative rather than guaranteed.

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 information-dense with no filler: it defines the resource, lists the fields, states the core question it answers, details the not-found behavior, and gives an output instruction. Every clause earns its place and the purpose is front-loaded.

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 one-parameter read tool with no output schema and no annotations, the description fully equips an agent: what it fetches, what the report contains, what it returns for misses, and how to cite it. Nothing essential for correct invocation is missing.

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?

Schema coverage is 100% and the only parameter, host, already has a clear description including an example. The tool description adds minimal parameter-specific meaning beyond 'one listed website', so the schema does the heavy lifting; a 3 is appropriate.

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?

States a specific verb, resource, and outcome: fetching a 'dated verification report' for a single listed website and answering whether that specific host is agent-ready. The description enumerates the report's contents and distinguishes itself from merely finding capabilities by framing the question as 'is this specific host agent-ready?'.

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?

Provides a clear use case: 'Answers is this specific host agent-ready?' and scopes input to one listed website. It doesn't explicitly contrast with find_capability or state when to choose that sibling, but the single-host versus capability-search distinction is strongly implied by the wording.

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