ScoutWyze FIPS: check an inventory

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

With no annotations, the description carries the full burden and does well: it discloses the billing model (per item, no free tier, no x402), the auth prerequisite, and the exact failure mode (HTTP 402 with signup and credit-pack details). It omits what happens on partial failures within a batch and whether the call is read-only/idempotent, which keeps it from a 5.

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, zero waste, with the capability and the batch limit front-loaded and the cost/auth/error caveats following. Every clause carries information an agent needs before calling.

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?

Covers what the tool does, the batch ceiling, the paid-access requirement, and the 402 failure path, and summarizes the return shape despite there being no output schema. It would be stronger if it characterized the per-item status values or partial-failure semantics for a 500-item batch.

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% and there is a single parameter with an inline example, so the schema already does the work. The description only restates the 500-item cap already encoded as maxItems; it adds no meaning about the product/version string formats or limits beyond the schema.

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+resource (checks product versions) with the batch scope (up to 500 in one call) and the return shape (per-item status plus counts). It does not explicitly name fips_lookup as the single-item alternative, so the differentiation from siblings is only implicit.

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 conveys that this is the bulk path and that it requires a prepaid key with per-item billing, which implicitly routes single lookups elsewhere. But it never states when to prefer fips_lookup, fips_list_products, or fips_expiring over this tool, and no explicit exclusions are given.

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