nexo_runtime_service_status

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

With no annotations provided, the description is responsible for disclosing behavioral traits. It only states it returns status, but does not mention whether it is read-only, any permissions required, or side effects. The agent lacks crucial information about the tool's safety and operation.

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 a single, front-loaded sentence that efficiently conveys the core purpose. However, it sacrifices completeness for brevity, which is acceptable for such a simple tool but prevents a higher score.

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 (no parameters, no output schema, no annotations), the description is the sole source of information. It fails to specify what the status output contains (e.g., fields like running state) or how it differs from similar status tools, leaving the agent with incomplete understanding.

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?

The tool has zero parameters, so schema coverage is trivially 100%. The description does not need to explain parameters, and it meets the baseline of 4 by providing context that the schema cannot, albeit minimally.

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 tool returns the 'resident NEXO Runtime Service status' with a specific verb 'Return' and a defined purpose 'for diagnostics.' It is not a tautology and distinguishes somewhat from general status tools, though it could be more explicit about what makes it unique among siblings like nexo_status or nexo_heartbeat.

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 provides minimal usage guidance beyond stating the purpose is 'for diagnostics.' It does not specify when to use this tool over alternatives, nor are there explicit when-not-to-use instructions. For a tool with many sibling status tools, more context is needed.

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