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

With no annotations, the description carries the full burden and does well: it declares the mutation ('Writes to Google; this is the connector's only write') and explicitly rules out generation, hosting and editing. It still omits quota/rate-limit behavior and permission requirements, which matter for a submission endpoint.

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?

Three sentences, each earning its place, with the core action front-loaded and the constraint and prerequisite following in priority order. Zero 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 two-parameter write tool with no annotations and no output schema, the description covers action, side effect, scope limits and prerequisite. It is slightly thin on site_id semantics and on what a caller gets back, but is otherwise sufficient to invoke correctly.

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 only 50%: sitemap_url is documented in the schema (including its default), while site_id is undocumented in both places. The description's 'URL of an existing file' loosely reinforces sitemap_url but adds nothing about site_id, so it does not compensate for the coverage gap.

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+resource ('Ask Google to recrawl a sitemap') and draws a sharp scope boundary ('submits the URL of an existing file and nothing more'). It does not name the obvious sibling List_Sitemaps or otherwise position itself against the 30+ read-only tools, so it falls short of full sibling differentiation.

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?

Gives a clear triggering condition ('because it is new or has changed') and a prerequisite ('publish the updated file yourself first'). No alternatives or when-not-to-use guidance are offered, so it stops short of a 5.

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