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

Annotations already declare readOnly/idempotent/openWorld=false, so the safety profile is covered. The description adds genuine context beyond that: the 'shared workspace API' channel and the reassurance that 'No server keys or visitor tokens are returned', telling the agent the response payload is sanitized. It still omits pagination/return-shape behavior.

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?

Three short sentences, front-loaded with the operation and its data-safety caveat, then the guide pointer. Effectively zero waste, though 'ownership/receipt readiness' is vague rather than precise wording.

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 read-only tool with no output schema, the description tells the agent only what is NOT returned, never what IS returned (fields, list shape, ordering). With two params and a free-form nested payload, a bit more return-shape context would help, though the safety annotations partly compensate.

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 50%; the payload property already carries a description enumerating IDs, expectedRevision, draft/definition, cursor, and reviewHash. The description contributes nothing to that beyond the word 'List', which merely aligns with the single-valued action enum. Baseline 3 is appropriate since the schema does the heavy lifting.

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 (List) and a resource ('website ownership/receipt readiness'), which is more than a tautology. However, the resource phrase is obscure jargon and the description offers no differentiation from the very crowded email namespace, notably the near-identical sibling inspect_email_website_results.

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?

No when-to-use, when-not-to-use, or alternative is given. The only routing signal is a pointer to the MCP workflow guide (socialloop://guides/email-campaigns), which implies context but does not tell an agent why to pick this tool over inspect_email_website_results or inspect_email_workspace.

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