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

With no annotations, the description carries the burden. It discloses return contents (overall health, component status, active incidents) and claims 'real-time', but does not mention authentication, rate limits, or explicitly confirm read-only behavior. However, for a status tool, this is reasonably transparent given the low operational risk.

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?

Two sentences deliver the purpose and return contents without wasted words. The key action and scope are front-loaded in the first clause.

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?

The tool is simple (0 params, no output schema). The description explains what it returns, making it adequately complete for an aggregate status check. It could mention relation to siblings, but that is not essential for invoking the tool.

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 the schema coverage is trivially 100%. The baseline for 0 params is 4, and the description adds no parameter meaning because there are none to document.

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 verb 'Get' and the resource 'real-time status for all AI providers', explicitly listing providers (OpenAI, Anthropic, Google AI). This distinguishes it from siblings like get_provider_status (likely single-provider) and get_incidents (focused on incidents only).

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 aggregate use ('all AI providers') but does not explicitly state when to choose this over get_incidents or get_provider_status. No exclusions or alternative guidance are provided, so usage context is only partially implied.

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