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

Annotations already declare readOnlyHint=true, idempotentHint=true, openWorldHint=false and destructiveHint=false, so the safety profile is fully covered without the description. The description adds genuinely new context by disclosing the return payload (price range, stock, product page URL), but says nothing about result ordering/ranking, how the limit caps results, or what an empty match looks like.

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 sentences, front-loaded with the action and catalog scope, followed by the return contents. The parenthetical product-type list earns its place by telling the agent what kinds of queries are valid; there is no filler.

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 two-parameter, read-only search tool with no output schema, the description adequately covers purpose and return shape. It is missing the sibling routing (browse_category, get_product) and any treatment of the limit parameter, which are the two things an agent would still have to guess.

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 only 50%: the 'query' parameter is well documented in the schema, but 'limit' has no description in either place. The description does not mention the limit parameter, the default of 8, or the maximum of 20, so it fails to compensate for the coverage gap even though min/max/default make the parameter relatively self-explanatory.

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 description names a specific verb and resource ('Search the AVDEB catalog ... by keywords') and scopes the catalog with concrete product types (stickers, decals, name badges, NFC keychains, 3D printed goods, gifts). It also states what comes back (price range, stock, product page URL). It does not explicitly distinguish itself from siblings like browse_category or get_product, 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?

Keyword search usage is implied by 'by keywords', which is enough for an agent to know this is the free-text entry point versus a category browse. However, there is no explicit statement of when to prefer browse_category or get_product, and no guidance on what to do when results are empty or too broad.

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