ghl_ad_google_segment_get

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

Annotations already declare readOnlyHint=true, destructiveHint=false, idempotentHint=true, openWorldHint=true. The description adds the endpoint version and OAuth scopes, which provide useful technical context but do not contradict annotations. It adds value beyond annotations without repeating them.

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 extremely concise: two brief sentences plus endpoint/scope details. It front-loads the purpose with 'Get segment by ID' and then adds retrieval context. No wasted words.

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 operation with provided annotations and schema, the description is complete enough. It explains the operation and gives API-specific details (endpoint, version, OAuth scopes). No output schema exists, so return value documentation is not expected.

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%, so the description does not need to add parameter details. It provides no parameter information beyond what the schema already documents, which is acceptable per the baseline.

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 clearly states 'Get segment by ID' and 'Retrieve a specific Google Ads audience segment by ID', using a specific verb (retrieve) and resource (segment by ID). It distinguishes from siblings like ghl_ad_google_segment_list, ghl_ad_google_segment_delete, etc.

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 or when-not-to-use guidance is provided. The description only states the operation. However, for a simple retrieval tool, the name and context sufficiently imply usage, but it does not mention alternatives or exclusions.

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