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

Annotations already declare readOnlyHint/idempotent/non-destructive/closed-world, so the safety profile is fully covered. The description adds filter semantics but says nothing about pagination behavior or what the returned entries contain, leaving gaps beyond the annotation coverage.

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 verb+resource first and filters after, with essentially no wasted words. Only minor cost is the parenthetical UUID pairings slightly cluttering the flow.

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 read-only list tool with full annotation coverage and no output schema, the description covers filtering adequately but leaves pagination defaults and return shape unaddressed. An agent would need to guess what a result entry looks like and how paging totals behave.

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 0%, so the description must carry parameter meaning: it explains website_id/website_uuid, customer_id/customer_uuid, and title/domain substring filters. However it omits the page and per_page pagination params, and 'indexed-only' does not cleanly map to the actual track_only parameter name.

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 (gservice_indexer entries), which clearly separates it from the create/delete/send gservice_indexer siblings. It doesn't explicitly name those siblings, but the verb makes the distinction obvious.

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?

The description enumerates available filters, implying this is the retrieval tool, but it never states when to use it versus nearby alternatives like submit_gservice_sitemap, get_gservice_query_options, or the gservice_query_* analytics tools. Usage must be inferred.

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