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

Annotations already declare readOnly/idempotent/non-destructive/not-open-world, so the safety profile is covered. The description adds real behavioral context — it returns only applicable suggestions with an "offered" true/false flag and instructs the agent to explain changes and let the shopper decide.

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?

Purpose is front-loaded, but the body is a single run-on enumeration riddled with typos ("when when the shopper ask", "shopper_as_about_other_costs", "stainles_steel") and repeats condition phrasing. Much of the length is the trigger mapping, which earns its place, but the execution is sloppy.

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?

An output schema exists, so return values need not be explained, and annotations carry the safety profile. The trigger-to-situation mapping and per-situation parameter hints make it complete enough for an agent to call correctly; only the redundant return-value sentence is surplus.

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?

With schema coverage at 33% the description must compensate, and it does: it tells the agent to send the grill brand/size/msrp for "lower_cost" and the design width and cabinets for "fill_space", plus a concrete example payload. The remaining thirteen situations need only the enum value, so parameter needs are effectively covered.

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?

The opening sentence states a clear verb+resource — it produces suggestions for the shopper's outdoor kitchen — and the following situation list pins down the domain. It never names or differentiates itself from siblings (e.g., price_design, list_cabinets), so it stops 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?

The description gives an explicit gating rule ("Call ONLY in one of these situations… Never call it unprompted") and maps fifteen distinct shopper utterances to the correct situation value. This is exhaustive when-to-use and when-not guidance, which is exactly the value this tool needs.

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