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

With no annotations, the description carries the full load, and it does disclose the return shape ('Returns URLs with a match score'), which is genuinely useful. It does not state pagination behavior, whether matching is case-sensitive or partial, or what the match score means, leaving real gaps for a search tool.

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?

Two short sentences, purpose front-loaded, no filler. Every clause adds information (scope, mechanism, return format).

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 annotations, so the description bears full responsibility. It names the resource, scope, matching mechanism, and return shape, but omits pagination/limit behavior and match-score semantics needed to interpret results 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 description coverage is 0%, so the description must compensate. It partially explains the required 'query' parameter as words matched against URL paths, but says nothing about the optional 'limit' beyond what its name and schema bounds already imply. Partial compensation only.

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 (find/search) and resource (pages) scoped to sunsetmixing.com, plus the matching mechanism ('words in their URL path', 'sitemap search'). This implicitly separates it from read_page, which fetches page content, though it never names that sibling explicitly.

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 parenthetical 'sitemap search' and 'by words in their URL path' imply the usage context: keyword lookup over URL paths rather than full-text or content search. However, there is no explicit when-to-use, when-not-to-use, or named alternative such as read_page, so a user must infer the routing.

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