Get Instances Members

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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so the safety profile is covered structurally. The description adds nothing beyond that: no pagination behavior, no authorization scope (instance-level vs user-level), and no hint about result shape, which matters for an openWorldHint endpoint.

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?

Extremely short and front-loaded with zero waste, but the brevity comes from under-specification rather than efficiency. It reads as a title, not a usable definition.

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?

With no output schema and no annotation-level detail covering return contents, the description should at least say what a member record contains or how the list is scoped. It omits everything an agent would need beyond the bare id argument.

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 single required parameter `id` has 0% schema description coverage, so the schema tells the agent almost nothing about what the id refers to (instance id, per the example `in_...`). The description does not compensate, though the singular required argument with a 15-char instance-style example makes the intent guessable.

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?

"Retrieve Instance Members" restates the tool name/title without adding a specific verb scope or distinguishing it from GetV1InstancesById. It does hint that the result is a collection (plural "Members"), but an agent cannot tell from the text alone whether it returns all members, paginated results, or a single record.

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 indication of when to call this versus the sibling mutators PutV1InstancesMembersByUserId and DeleteV1InstancesMembersByUserId, nor any prerequisite such as needing an instance id that actually owns members. Usage is only inferable from the tool name itself.

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