hosting_verifyDomainOwnershipV1

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

No annotations provided, so the description carries full burden. It discloses that verification involves DNS TXT record checking, mentions propagation delay, and indicates response field 'is_accessible'. It does not explicitly state it's read-only, but implies no side effects. Reasonable disclosure for a simple verification tool.

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?

Description is concise and well-structured: purpose, usage, conditional actions, propagation note, and skip instruction. No unnecessary information; every sentence contributes.

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 the tool's simplicity (one parameter, no output schema), the description covers key aspects: purpose, usage, expected behavior, and exceptions. It could be improved by explicitly mentioning the response structure, but the description hints at it sufficiently.

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?

Only one parameter ('domain') with 100% schema coverage. The description adds value by explaining the context of the parameter and the expected outcome (e.g., 'If the domain is accessible, the response will have is_accessible: true'). This goes beyond the schema description.

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 the tool's purpose: 'Verify ownership of a single domain and return the verification status.' It provides a specific verb ('verify') and resource ('domain ownership'), and distinguishes itself from sibling tools by focusing on ownership verification and explicitly advising to skip for free subdomains.

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?

Excellent guidance: 'Use this endpoint to check if a domain is accessible for you before using it for new websites.' It explains what to do if not accessible (add TXT record and retry), notes propagation delay, and explicitly states when to skip (free subdomains).

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