get_group_measurements

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

With no annotations provided, the description carries the transparency burden. It discloses that the output is 'measurement summaries' (a useful behavioral hint), but it does not clarify what fields summaries include, ordering, whether the group must exist, or error behavior. The read-only nature is implied by 'List' but not explicit.

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, compact sentence that front-loads the action and resource. Every word earns its place, with no redundancy or filler.

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 list operation with one parameter and no output schema, the description is moderately complete. It communicates the core purpose but leaves ambiguity about the structure of 'measurement summaries' and how this tool relates to sibling operations like add_measurements_to_group or list_groups. Given the low complexity, a bit more detail on return contents would push it higher.

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 input schema has 100% coverage for the single 'group' parameter, which includes a description ('Group UUID (from list_groups or create_group)'). The tool description adds minimal extra meaning—'in a group' echoes the parameter—but does not provide details on format or validation beyond the schema.

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 action ('List') and the resource ('measurements currently in a group'), with the qualifier 'as measurement summaries' indicating a summary-level response. This distinguishes it from siblings like list_measurements (all measurements) and get_measurement (single measurement).

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 usage when you need to see which measurements belong to a group, but it does not explicitly contrast with alternatives such as list_measurements or add_measurements_to_group. There is no mention of when not to use it or prerequisites beyond the group parameter.

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