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

Annotations already declare readOnlyHint=true and destructiveHint=false, covering the safety profile. The description adds 'No run, payment or wallet' which reinforces read-only behavior but is largely redundant. It does not elaborate on output format, error conditions, or other behavioral traits beyond the annotation coverage.

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 zero unnecessary words. The primary function is front-loaded, and the exclusions are stated succinctly at the end.

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 read-only and descriptive nature, the description is mostly adequate. However, it does not describe what the returned description contains (e.g., structure or length), nor does it differentiate from read_agent_test_report, which could confuse an agent about which tool to use for detailed test output.

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?

With schema coverage at 100%, all three parameters are documented. The description adds meaningful context by specifying that case selection is optional and that omitting it selects the original confirmation case, and clarifies the 'versioned' nature of the task. This goes beyond the schema definitions, which are already detailed.

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 that the tool provides a 'free description' of a versioned synthetic task, including its limits and coverage. The explicit phrase 'No run, payment or wallet' distinguishes it from sibling action tools like start_agent_test or test_payment, making the purpose unambiguous.

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 gives guidance on optional case selection and default behavior when omitted ('omitted selection describes the original confirmation case'). However, it does not name alternative tools such as read_agent_test_report or list_agent_test_cases, nor explicitly state when to prefer this over them, leaving room for ambiguity.

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