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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, establishing a safe read-only behavior. The description adds context about the returned content (installed MCPs, connection status, accounts, catalog counts), which is useful but does not disclose additional behavioral traits such as potential latency or authentication requirements.

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 the main action front-loaded and a colon-delimited list of return contents. Every phrase adds information without 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 status tool, the description specifies all the relevant output categories (installed MCPs, connection status, accounts, catalog tool counts). Since no output schema exists, this textual enumeration is sufficient for an agent to understand the tool's return value.

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 accepts zero parameters, and the schema coverage is trivially 100%. With no parameters to document, the description does not need to add parameter-level detail; the baseline of 4 applies.

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 the resource 'current toolkit state' and enumerates the components (installed MCPs, connection status, accounts, catalog tool count). This clearly identifies what the tool does and implicitly distinguishes it from action-oriented siblings like 'authenticate' or 'connect', though it does not explicitly name alternatives.

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 only states what the tool returns and provides no guidance on when to call it or how it compares to sibling tools. There is no mention of use cases like 'check status before connecting' or exclusions, leaving the agent to infer when to use this tool.

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