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

With no behavioral annotations beyond the title, the description must carry the full burden. It does disclose that the return format varies by backend mode and that payload overrides are supported, which adds some useful context. However, it does not state permissions, side effects, whether generation is idempotent, or any operational constraints.

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 short and front-loaded with the primary action. Each sentence carries useful information, though the return-format sentence is somewhat redundant given the output schema exists.

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?

The description covers required inputs and return-format variability, and the output schema covers return structure. It nevertheless omits the timeout_seconds parameter and gives no usage context or operational constraints for a trigger-style action, leaving meaningful gaps.

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 0%, so the description should compensate. It identifies the two required parameters and gives examples of payload_overrides keys (crawl depth, include_images), but it completely omits timeout_seconds and does not explain value formats or valid override keys in detail.

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 the specific verb and resource: trigger the sitemap-generator action. It is distinguishable from the sibling robots-txt generator by the sitemap focus. It lacks a slightly sharper statement of scope, such as whether it generates or regenerates a sitemap for a site.

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?

There is no guidance on when to use this tool versus alternatives like crawler_generate_robots_txt or crawler_run_checker. The description only instructs how to invoke it after selection, not when selection is appropriate.

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