ghl_ad_google_segment_list

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

Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false. The description adds OAuth scope (adPublishing.readonly) and API version, which adds some value. However, it lacks details about pagination, limits, or response format beyond what annotations cover.

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 concise (two short sentences plus endpoint/scopes). It front-loads the core purpose. The endpoint line adds useful context but is not strictly necessary for tool selection. Overall well-structured without verbosity.

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?

No output schema and no description of the return format. For a listing tool, users need to know if it returns an array, pagination info, or other details. This lack leaves the agent uncertain about the response structure.

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 coverage is 100% with both parameters described. The description does not add any parameter-specific information beyond what is already in the schema, so baseline score of 3 is appropriate.

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 title 'Get segments' and description 'Retrieve Google Ads audience segments for a location' clearly indicate a list/read operation for Google Ads segments. It distinguishes from sibling tools like ghl_ad_google_segment_get (single segment) and ghl_ad_google_segment_delete, though it could be more explicit that it returns a list of segments.

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 guidance on when to use this tool versus alternatives. The name and context imply listing, and sister tools like ghl_ad_google_segment_get exist, but description does not mention when-not-to-use or direct to alternatives.

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