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

No annotations are provided, so the description carries the full burden. It says the tool creates and fills but not whether an existing kit can be overwritten, whether filling is best-effort or atomic on partial failures, how queries/keywords/ASINs are combined, or that multi-item resolution may be slow or costly — significant gaps for a 10-parameter 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?

Two tight sentences, front-loaded with the composite purpose and required inputs. The required-params clause is partly redundant with the schema's required array and field descriptions, but nothing else 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?

A 10-parameter composite tool with no annotations, no output schema, and 20% schema coverage needs far more than two sentences. The agent cannot tell what the tool returns (kit id? resolved items?), how fill sources interact, or how the dorm-context parameters affect results.

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 only 20% (just locale and marketplace), so 8 parameters are undocumented. The description names itemQueries, itemKeywords, and itemAsins but adds no meaning beyond the names — no precedence between them, no explanation of roomType/budgetBand/university/dormRules steering behavior — and "marketplace + locale REQUIRED" merely restates 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 ("create a dorm kit and fill") and names the three fill inputs. The word "One-shot" gestures at the composite nature differentiating it from create_kit + add_kit_item, but the siblings are never named, so an agent must infer the distinction.

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?

"One-shot" implies this is the atomic alternative to the create_kit then add_kit_item sequence, but the description never says so explicitly, never states when to prefer the stepwise path, and never covers what happens if no item inputs are supplied.

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