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

Annotations already declare readOnlyHint=true and idempotentHint=true, and the description adds concrete details about return contents (installed MCPs, connection status, accounts, catalog tool counts). No contradictions. It adds behavioral context about what the tool reveals without overstating side effects.

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?

Single sentence, front-loaded with the primary action ('Returns the current toolkit state') and then lists the specific data items. No wasted words, highly scannable.

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 zero-parameter read-only tool with no output schema, the description sufficiently covers what it returns. It doesn't describe the exact structure, but that's not critical given the tool's simplicity and the annotations already indicating safety. Could mention return format, but it's not a major gap.

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?

There are 0 parameters and schema coverage is 100% (empty schema), so the baseline is 4. The description does not attempt to add parameter semantics because there are none; it focuses on the returned state information, which 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?

Description clearly states the tool returns the current toolkit state, listing specific components: installed MCPs, connection status, accounts, and catalog tool counts. This is a specific verb+resource (returns state) and distinguishes from siblings like authenticate (auth) and connect (establishing connections).

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?

Implied usage (when you need an overview of toolkit state) but no explicit when-to-use vs alternatives, exclusions, or prerequisites. For a simple info tool, this is acceptable but lacks clear guidance on when to call it over other tools.

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