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

Goes beyond the destructiveHint/readOnlyHint annotations by specifying exactly what is destroyed ("Its thresholds are forgotten"), what re-enabling costs, and an important non-effect ("Suggestions already produced for this item are not withdrawn"). This is precisely the side-effect detail an agent needs before a destructive mutation.

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?

Action is front-loaded in the first clause, followed by consequence and side-effect scope. Three sentences, all informative; only marginal tightening is possible.

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?

For a destructive, no-output single-parameter mutation whose annotations already declare destructiveHint=true, the description supplies the missing pieces: what is lost, reversibility, and the untouched existing suggestions. Nothing an agent needs is absent.

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% and the single variantId parameter is documented in the schema as "Item id from get_supplier_items." The description adds no parameter-level detail, so baseline 3 applies — the schema does the work here.

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 action and scope: "Stop watching one item: it will no longer be suggested for reordering." This clearly distinguishes it from its counterpart hub_set_reorder_rule, which the description implicitly references by noting that re-enabling requires re-setting thresholds.

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 when-to-use context (stop auto-reordering for a specific item) and points to a related downstream action ("cancel those orders separately") plus the reversible-by-reconfiguration caveat. It stops short of explicitly naming hub_set_reorder_rule as the opposite operation, but the guidance is otherwise clear.

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