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

Annotations already declare readOnlyHint=true and idempotentHint=true, so the description doesn't need to restate safety. It adds value by detailing exactly what information is returned (installed MCPs, connection status, accounts, number of tools). No contradictions.

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 a single, concise sentence that front-loads the purpose and lists all key return elements. No redundant words or unnecessary details.

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 has no parameters flags and no output schema flag, the description sufficiently explains what the tool returnsaine. Annotations cover read-only/idempotent behavior, so nothing is missing. The tool is simple and the description is 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?

With zero parameters)Skip the schema is trivially covered (100% coverage). Since there are no parameters, the description has nothing to add about parameter semantics; the baseline of 4 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?

The description clearly states the tool returns the current toolkit state, enumerating specific contents (installed MCPs, connection status, accounts, catalog tool counts). The verb 'returns' and resource 'toolkit state' are specificament, distinguishing it from sibling tools like authenticate or connect which perform actions.

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 implicitly conveys when to use this tool: to inspect the current toolkit state. It doesn't explicitly mention when not to use it or alternative tools, but given the simplicity (zero parameters) and clear purpose, the usage context is obvious. Sibling tools are action-oriented, so the contrast is apparent.

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