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

Annotations already declare readOnlyHint=true, openWorldHint=false, and destructiveHint=false, so the safety profile is covered. The description adds useful behavioral context by naming propertyCoversSite and suggestedProperty as result concepts, which helps an agent understand what the check evaluates.

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 front-loaded sentence with no wasted preface. The parenthetical efficiently explains the suggestedProperty nuance without derailing the main purpose.

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 simple read-only status check with one well-documented parameter, the description is nearly complete. It explains the key connection and property-coverage concepts, though without an output schema it could be slightly more explicit about the full response shape or not-connected states.

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 100% for the single projectId parameter, so the schema already carries the parameter documentation. The description only references 'this project' and does not add format, source, or selection guidance beyond the schema.

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 states a specific verb and resource: checking whether Google Search Console is connected to a project and whether the connected property covers the site address. It is clearly distinct from sibling analytics and inspection tools such as get_search_performance and inspect_url.

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?

Usage is implied by the connection-status framing, but the description does not explicitly say when to choose this tool over related siblings or what to do if the result is not connected. It also does not mention prerequisites beyond the project context.

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