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

Annotations already declare readOnlyHint=false, destructiveHint=false, idempotentHint=false, and openWorldHint=false. The description adds meaningful context beyond annotations: the authorization link is stored with a separate encrypted token and does not affect the Google Ads connection, which is important for an authentication/connect tool.

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 two sentences and front-loads the core action: generating an authorization link. Every clause adds relevant information about scope and behavior, with no filler.

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 no-parameter connection tool with an output schema and annotations, the description is largely complete. It explains what is generated, what capabilities the connection enables, and how the token is isolated, though it could mention any prerequisite admin access or authorization flow details.

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 takes no parameters, so the baseline of 4 applies. There are no parameter semantics to document, and the description correctly does not invent or omit any parameter details.

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?

States a specific verb and resource: generating an authorization link to connect Google Business Profile. It also names the enabled capabilities (editing business info/hours/website, publishing posts, replying to reviews) and explicitly distinguishes the tool from the Google Ads connection, making it easy to tell apart from sibling connect_* tools.

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?

Implies the context clearly: use this to connect a Google Business Profile account. It provides a useful exclusion by noting it does not touch the Google Ads connection, which helps route away from connect_google_ads, but it does not explicitly state when to choose this over other GBP-related tools or list prerequisites.

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