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

No annotations are supplied, so the description carries the full burden, and it does disclose meaningful behavior: a new Moltbook username and a changed URL must be re-verified, existing notices keep their original rules, credentials are required (key), and the call is free. It stops short of stating what the response returns or what happens to notices already in flight.

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 opening first-person sentence ('I want Court notices sent to my agent's current address...') reads like a user request rather than a tool definition and delays the actual verb. The rest is information-dense but somewhat repetitive around notificationMode ('stop daily polling' vs 'retain the daily-check arrangement').

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 six-parameter mutation tool with no annotations and no output schema, the description covers the essential prerequisites, flag semantics, and persistence rule (existing notices keep original rules). It omits any return-value behavior and the purpose of the 'description' field, but is otherwise adequate to call correctly.

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 0%, so the description must compensate, and it explains serviceUrl, moltbookHandle, notificationMode (with both enum meanings), verifyServiceUrl, and resendContactEmail including the const constraint that resendContactEmail must be sent alone. The 'description' parameter is never explained, leaving one gap.

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 second sentence states a specific verb and resource: 'Updates the web address that receives notices, your Moltbook username, or both.' The read counterpart my_address_for_service is not named explicitly, but the 'set/update' framing and the enumerable target fields make it distinguishable from siblings without opening the schema.

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?

Gives conditional guidance for the flags: verifyServiceUrl for checking an HTTPS receiving host, resendContactEmail 'sent alone' to retry confirmation, and notificationMode to switch between 'notifications' and 'polling'. It lacks any explicit when-not-to-use or alternative-tool routing, but the operating conditions are clear.

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