Get Metric Set Metadata

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

With no annotations, the description carries the full burden of behavioral disclosure. 'Get' implies a read-only operation and mentioning 'freshness' adds some context, but the description does not explicitly state side-effect-free behavior, potential staleness, or error conditions. It is adequate for a simple metadata fetch but lacks deeper behavioral guarantees.

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 sentence that states the core action and the key differentiator ('freshness') without any filler. Every word earns its place, and the key information is front-loaded.

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 presence of an output schema means return value details do not need to be in the description, and the schema covers parameter semantics. The description is sufficient to understand the tool's basic function, though it leaves usage routing and edge-case behavior to the agent. Still, for the complexity level and available structured data, it is close to complete.

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 description coverage is 100%, so the input schema fully documents both parameters, including examples for metric_set and package_name. The description adds the context that this is for 'vitals metric set' metadata but does not provide additional parameter-level semantics beyond what the schema already states, matching the baseline of 3.

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 names a specific verb ('Get'), resource ('metadata for one vitals metric set'), and a distinctive detail ('including its freshness'). It distinguishes itself from siblings like list_metric_sets and get_vitals_freshness by emphasizing 'one' specific metric set, so an agent can tell them apart without inspecting schemas.

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 explicit guidance is given about when to use this tool versus alternatives such as list_metric_sets or get_vitals_freshness. The description implies a use case (fetching metadata for a single metric set), but it does not state when not to use it or mention any sibling tools, leaving the agent to infer the routing.

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