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

No annotations are provided, so the description must carry the full behavioral burden. It states the tool browses a curated, scored index but does not disclose details like whether results are read-only, how pagination works, what 'scored' means, or any side effects. The context parameter's behavior is described in the schema but not reinforced in the description. This is a minimal disclosure for a tool that may have hidden ranking logic.

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 description is two sentences with no fluff. It front-loads the core purpose and immediately follows with usage hints. Every word earns its place, making it easy to parse quickly.

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?

Given the tool's simplicity (5 params, no output schema), the description is minimally sufficient but misses some context. It does not explain what an 'area' is beyond the taxonomy examples, nor does it describe the return structure or pagination behavior. For a browse tool, some clarity on expected output would help, but the basics are covered.

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 20% (only 'context' has a description). The description does add some meaning by indicating 'Search by text' implies q is a text query, and 'sort by provider count' suggests sort values relate to provider count. However, it does not explain 'page' or 'limit' semantics, though these are common. The description partially compensates for low schema coverage but leaves gaps.

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 clearly states the resource (API Evangelist areas taxonomy) and the action (browse/search). It distinguishes itself from sibling find_* tools by naming the specific taxonomy type ('areas') and providing examples like authentication, webhooks, payments. This makes the tool's purpose unambiguous even without opening the schema.

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 explicit guidance on when to use this tool versus alternatives. The description mentions 'Search by text; sort by provider count' which is instructional but not contextual. With over 30 sibling find_* tools, the lack of exclusions or comparison to related tools (e.g., find_providers, find_apis) leaves the agent to infer usage solely from the resource name.

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