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

Annotations already mark this read-only and idempotent; the description adds meaningful behavior beyond that: words are AND-matched, freeOnly and maxPriceUsd filters apply, price is before tax, and results include current public details and tracked product links. This gives agents useful operational context.

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?

Three concise sentences, each adding distinct information: scope, matching behavior, filtering, and return content. No wasted words, and the core purpose is front-loaded.

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 simple read-only search with four optional parameters and no output schema, the description covers the main inputs and return concept. It falls slightly short by not describing the limit parameter or the structure of returned results, but the schema supplies defaults and constraints for the omitted parameter.

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?

The schema has no property descriptions (0% coverage), so the description must compensate. It explains query matching, freeOnly, and maxPriceUsd, but it does not mention the `limit` parameter at all, leaving one of four parameters semantically underdocumented.

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?

Description clearly states a specific verb ('Search') and resource ('released miniature, architecture and terrain kits'), and the scope is obvious. It also distinguishes itself from the sibling tools get_kit and get_purchase_link by describing a list-style search over released kits.

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 search/browse tool for kits, which implies it is for discovery rather than retrieving a single kit or purchase link. However, it does not explicitly state when to prefer a sibling tool or mention any exclusions, leaving the usage boundary to be inferred from tool names.

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