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

Annotations are empty, so the description carries the burden. It discloses output format (markdown), a token budget, and the version fallback chain behavior, which are meaningful traits. However, it doesn't state whether the operation is read-only, its pagination/miss behavior beyond versions, or result ordering.

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 sentences, front-loaded with the purpose and package list, then output characteristics, then defaults. There is minimal waste, though the closing default sentence slightly overlaps the schema's default descriptions.

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 search tool with no annotations and no output schema, the description explains output format and token budget but omits the return structure details, ordering, and error behavior. The version fallback note is present, but overall coverage is adequate rather than thorough.

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 the schema already documents all four parameters, including the multi-query and version fallback semantics. The description only reiterates the default package scope and version default, adding no syntax or format detail beyond 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 (Search) and resource (FlutterSDK package documentation), and enumerates the concrete package set. There are no siblings, so the scope of the package universe is what distinguishes this tool.

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?

Provides context that multiple queries should be passed when terminology is ambiguous, but this guidance is in the schema, not the description. The description itself gives no explicit when-to-use vs alternatives and no exclusions, leaving usage implied only.

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