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

Annotations already establish that this is a read-only, idempotent, non-destructive, closed-world operation, so the safety profile is covered. The description adds genuinely new behavioral context beyond that: default ordering is most-documented first, and each result carries report, recurring-theme and source counts. It omits pagination behavior, which is one gap.

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 returned data and ordering are front-loaded before the optional filters. Every clause carries information.

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?

There is no output schema, so the description correctly carries the return-shape burden by naming the counts returned, and the filters are covered. Pagination and total-count behavior are left to the schema, which is acceptable for a simple list 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 description coverage is 100%, so the parameters and their defaults are already documented in the schema. The description restates the filter semantics (category slug, name or domain fragment) without adding syntax or matching behavior beyond what the schema provides. Baseline 3 applies.

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 (List) and resource (software products with a page on Friction), plus scope qualifiers: documented-first ordering and the aggregate counts returned. An agent can tell this apart from get_product_summary, which returns a single product's summary, and from search_items, which searches items rather than products.

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 the browse/discovery use case through the sort order and filters, but never states when to choose this over get_product_summary or search_items, and gives no exclusions. Usage must be inferred from the resource name.

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