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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, and the description does not contradict them. The description adds value beyond annotations by specifying what state is returned (installed MCPs, connection status, accounts, catalog counts), which gives the agent a concrete picture of the response.

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, well-structured sentence with a front-loaded main clause and a colon-separated list of the exact data categories returned. Every word adds information, and there is no fluff or redundancy.

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 state inspection tool, the description is complete: it names the resource and the four specific categories of information returned. It does not need to explain return values in more detail because the described content is the return value, and there are no input parameters or complex side effects to cover.

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?

The tool has zero parameters and schema coverage is 100% (empty object), so there are no parameter semantics to explain. The baseline of 4 applies because the description correctly does not invent parameter information and the schema/empty parameter set fully covers this dimension.

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 uses a specific verb ('Returns') with a clear resource ('current toolkit state') and itemizes exactly what that includes: installed MCPs, connection status, connected accounts, and catalog tool counts. This clearly distinguishes it from siblings like 'show_version' or 'authenticate', which are about different concerns.

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 implies use when an agent needs an overview of the toolkit's installed integrations and their health, but it does not explicitly say when to prefer this over alternatives or when not to use it. The context is clear enough to infer intended usage, but explicit guidance is missing.

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