signupgenius_get_group_member

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

The readOnlyHint annotation already covers safety, and the description adds meaningful behavioral context by stating which fields are returned and that availability depends on the member having provided them via a sign-up. This goes beyond the annotation without contradicting it.

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 front-loaded sentence with no filler. Every clause adds useful information: the action, the resource, the fields, and the availability condition.

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 read-only lookup with two required parameters and no output schema, the description covers the essential return contents and data-availability caveat. It is slightly incomplete in not explaining groupId, but the overall context is sufficient for an agent to use the tool correctly in most cases.

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 50%, and the description does not meaningfully compensate for the undocumented groupId parameter. The memberId parameter is well-explained in the schema, but the description adds no details about what groupId represents or how it relates to group membership.

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 uses a specific verb ('Get detailed info') and a specific resource ('a group member'), and clearly enumerates the returned fields (address, phone, email). It also adds a scope condition ('when the member has provided it via a sign-up'), which distinguishes it from the sibling list_group_members and get_profile tools.

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 provides useful context about data availability, but it never explicitly says when to choose this tool over siblings like signupgenius_list_group_members or signupgenius_get_profile. The memberId schema description hints that the ID comes from list_group_members, but the tool description itself does not name alternatives or exclusions.

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