get_api_for-test_runner

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

No annotations provided. Description lacks any behavioral context (e.g., read-only, mutability, error conditions, return structure). Agent cannot infer tool behavior.

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?

Extremely short (one phrase) but at the cost of informativeness. It is under-specified rather than concise. No structure beyond a label-like statement.

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 no annotations, no output schema, and vague description, the tool is incomplete. Agent has insufficient information to use it correctly, especially among numerous similar siblings.

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 has high description coverage (67%), but the description adds no meaning beyond the schema's own parameter descriptions. No explanation of how to use class/method or expected format.

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 'Node.js API: Test runner' is vague; it restates the tool's name without specifying the action (e.g., retrieve, list, search). It fails to indicate what the tool does beyond associating with the test runner module.

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?

No guidance on when to use this tool versus alternatives. Sibling tools cover many modules, but there is no differentiation or context for selecting this one.

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