add_domain_to_whitelist

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

Annotations already indicate readOnlyHint=false, destructiveHint=false, idempotentHint=false. The description adds that the call is not idempotent and may create duplicates, which aligns with annotations. No additional behavioral traits (e.g., auth needs, rate limits) are 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?

The description is reasonably concise but has redundancy: 'Add domain to whitelist' appears in both the title and the body. It is front-loaded with the method and endpoint, but could be streamlined.

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 write operation with no output schema, the description provides the endpoint and idempotency note. However, it does not explain the response or error handling, which is acceptable but not fully 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?

Schema description coverage is 100%, so the schema already documents the single required parameter. The description only repeats the domain action without adding new meaning beyond the schema.

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 action 'Add domain to whitelist' and the resource 'domain to site tracking whitelist'. It is distinct from siblings like 'remove_domain_from_whitelist' and 'list_all_whitelisted_domains', but does not explicitly differentiate.

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 includes a header indicating it's a WRITE operation with the endpoint, but does not specify when to use this tool over alternatives or any prerequisites. Usage is implied by name and context.

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