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

Annotations already declare readOnlyHint=true, openWorldHint=true and destructiveHint=false, so the safety profile is covered. The description adds that the count reflects what Revamp CRM has synced (not the store's live totals), a useful nuance, but says nothing about behavior for an unknown provider/store or about rate limits.

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, the purpose is front-loaded, and the endpoint line is supplementary rather than padding. Nothing is wasted.

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 phrase "how many orders" implies a numeric return, which is the minimum an agent needs. It leaves unstated what happens on an unknown store/provider or whether the count is capped, so the description is adequate rather than complete for a two-required-parameter remote API call.

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 both provider and store are already documented in the schema. The description only restates that both are path segments in the GET endpoint, adding no new semantics beyond what the schema provides.

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 (count) and resource (e-commerce orders synced for one store), which clearly separates it from the nearest sibling get_order. It does not name any sibling explicitly, so it stops just short of a 5.

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?

"for one store" implies the tool only answers per-store questions, which is a mild scoping constraint an agent can act on. There is no explicit guidance on when to use a count versus get_order or a list call, and no prerequisites or exclusions are given.

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