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

Annotations already declare readOnlyHint=true and destructiveHint=false, so the description's incremental contribution is the phrase 'public-safe', which hints at accessibility without requiring credentials. However, it does not disclose response shape, aggregations, or potential latency. Given the annotations cover the safety profile, this is adequate but not rich.

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 entire description is one efficient sentence that front-loads the core action and resource, then enumerates metric categories. Every word earns its place and there is no verbosity or redundancy.

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?

For a simple, zero-parameter read tool with annotations, the description is mostly complete, but it lacks any mention of what the returned metrics look like or how an agent should interpret them. Since there is no output schema, a bit more detail on the return shape would have made this fully self-contained.

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?

There are zero parameters and the schema has no properties, so no parameter explanation is required. The description adds context about the type of data returned, which supports the empty parameter list. This aligns with the baseline for no-parameter tools.

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 states the verb 'Read' and the resource 'network metrics', and enumerates specific categories (discovery, commerce, verification, recovery, availability). It is clear and differentiates itself from other getter tools by scoping to aggregate network metrics, though it does not explicitly contrast against siblings.

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 is given about when to use this tool versus alternatives like get_connection_health or get_discovery_manifest. The description only states what it does, leaving the agent to infer that it is for overall network metrics without any exclusionary or contextual cues.

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