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

Annotations already declare readOnlyHint=true and openWorldHint=true, so safety and external-call behavior are covered structurally. The description adds nothing beyond that baseline – no note on result shape, ranking, pagination, or rate behavior, despite being an open-world web lookup.

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?

The single sentence is efficient but under-specified rather than concise: it omits the minimal context a search tool needs. Brevity here reflects missing content, not disciplined editing.

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?

With an output schema and full annotation coverage, return values need not be explained, but a search tool in a large sibling family should at least clarify scope and routing. Nothing tells the agent why to pick this over chromewebstore_suggest or chromewebstore_categories.

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%, so Term, Num, Lang and Country are all fully documented in the schema with defaults and formats. The description adds no syntax or semantics beyond that, which is the expected baseline when the schema does the heavy lifting.

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 verb (search) and resource (Chrome Web Store), so the basic purpose is discernible. But it essentially restates the tool name and gives no differentiation from close siblings like chromewebstore_suggest or chromewebstore_item, leaving the agent to infer scope.

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?

There is no when-to-use guidance, no mention of alternatives (e.g. suggest for autocomplete, item for a known app ID), and no prerequisites. The agent must guess whether this or a sibling is appropriate.

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