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

Annotations already declare readOnlyHint=true, destructiveHint=false, and openWorldHint=true, covering the safety profile. The description adds only the scoping fact that links are per-GA4-property; it says nothing about pagination, result volume, or auth requirements beyond what annotations imply.

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?

A single front-loaded sentence with no filler; the scope qualifier follows the verb+resource immediately.

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 list tool with no output schema and one undocumented parameter, the description is adequate but thin: it neither explains the return shape (no output schema exists to cover it) nor the property identifier format.

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 single 'property' parameter has 0% schema description coverage, so the description must compensate. Mentioning 'configured on a GA4 property' ties the parameter to its meaning, but gives no format (e.g. properties/12345) and, notably, the schema marks it non-required while the description implies it is needed.

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 ('List') and resource ('Google Ads account links') scoped to a GA4 property. This clearly separates it from the create_google_ads_link and delete_google_ads_link siblings, though it doesn't name them explicitly.

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?

No explicit when-to-use guidance, prerequisites, or alternatives. Usage is only implied by the verb 'List' and the mention of a GA4 property; the agent must infer it's the read-side counterpart to create/delete_google_ads_link.

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