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

Annotations already declare readOnly, idempotent, non-destructive and non-open-world, so the safety profile is covered. The description adds the return shape (matching pages with names, descriptions, links, NLWeb-style) and the intended next step, but that return detail is largely duplicated by the output schema, and nothing is said about result limits or ranking beyond 'best matching'.

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 sentences, front-loaded with the core action and scope, and the trailing workflow instruction is useful. The long parenthetical enumeration of page types is a bit heavy but does real work in conveying index breadth.

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?

An output schema and full annotations carry much of the load, and the description covers purpose, return content and the follow-up step. Gaps remain around result counts/pagination and the effect of the kind filter, which matter for an open-ended whole-site search.

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 baseline is 3. The description reinforces that query is a plain-language question and gives an example's flavor, but it never explains the kind filter or how restricting to guide/tool/state_rules/store/service/translated changes results.

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 (search) and a precisely scoped resource (every public page of the MCC Solutions site), and enumerates what's covered (guides, state rules, tools, services, store products, translated pages). The follow-up sentence naming read_page cleanly separates it from the sibling that opens a single result.

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 clear usage context -- ask a plain-language question, then use read_page to read a result in full -- which routes the agent through the right two-step flow. It does not state any exclusion, such as when search_store or site_directory would be preferable for browsing rather than questioning.

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