benchmark_latency

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

No annotations are provided, so the description carries full burden for behavioral disclosure. It only states the tool benchmarks latency but does not reveal that it makes network requests, potential rate limits, or whether it is read-only. For a benchmark tool, these gaps are significant.

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 extremely concise at 5 words, front-loaded with key information. It earns its place but could add a bit more context without becoming verbose. Still very efficient.

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 complexity (benchmark, 2 params, no output schema, no dependencies), the description is too sparse. It does not explain return values, valid transport values, duration of benchmark, or how it differs from check_dns. Incomplete for confident use.

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 coverage is 100% with both parameters described ('Domain to benchmark', 'Transports to test'). The description adds no extra meaning beyond what the schema provides—it does not specify transport formats (e.g., UDP/TCP/DoH) or latency units. Baseline 3 is appropriate.

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 'Benchmark DNS latency across transports' uses a specific verb (benchmark) and resource (DNS latency) with scope (across transports). It clearly distinguishes from sibling tools like check_dns, which likely checks DNS resolution status rather than performance.

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?

The description implies usage for performance testing but does not explicitly state when to use benchmark_latency versus alternatives like check_dns. No exclusions or conditional guidance are provided.

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