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

Annotations already declare read-only, idempotent, non-destructive and closed-world behavior, so the safety profile is covered. The description adds genuine beyond-schema context: results are limited to free-preview reports, and each report exposes source threads with URL, date, quoted excerpt and state. It stops short of saying anything about result volume, ordering, or empty-result behavior.

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, no filler, and the primary scope (one product's free-preview reports) is front-loaded before the optional filters and the return-shape note. Every clause carries information an agent needs.

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?

With no output schema, the description correctly spends its second sentence describing what a report contains, which is the main information gap. What remains unaddressed is how many reports come back and whether ordering or paging applies, a minor but real omission for a search tool.

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 100%, so baseline would be 3, but the description contributes real semantics the schema lacks: the query is conjunctive ('all words must match') and the searchable fields are the title and summary. It also makes explicit that product scopes the search to a single product.

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 and resource ('Search the free-preview feedback reports of one product') plus the optional narrowing dimensions, which cleanly separates it from list_products and get_product_summary. An agent can tell from the description alone that this is the text/filter search entry point, not a listing or aggregate tool.

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 implies usage by noting the filters are optional and that all query words must match, but it never says when to reach for this versus the sibling listing/summary tools, nor when a category filter is preferable to a keyword query. The 'free-preview' qualifier hints at a scope restriction without stating what that means for the caller.

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