List TestFlight beta groups

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

Annotations declare readOnlyHint=true and openWorldHint=true, so the safety profile is already known. The description adds useful content context by naming internal/external groups and mentioning ids and public link settings, but it omits pagination, authentication, and rate-limit behavior.

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 redundant or filler content. Every phrase contributes to scoping the resource and the returned data.

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?

Given the low complexity, no output schema, and annotations covering read-only safety, the description is partially sufficient by indicating return contents. However, it leaves the only parameter undocumented and does not describe list completeness or pagination, so gaps remain for an agent invoking it correctly.

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 is one required parameter, appId, and schema description coverage is 0%. The description only implies that an app identifier is needed through the phrase "an app's", without explaining the expected format, source, or constraints, so it does not compensate for the schema gap.

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 a specific verb and resource: list an app's TestFlight beta groups, including internal and external types. It is clear what the tool returns, but it does not distinguish itself from sibling list tools such as asc_list_builds or asc_list_apps beyond the resource name.

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 gives no guidance on when to choose this tool versus alternatives, nor any prerequisites or exclusions. An agent can infer from the resource name, but there is no explicit usage context.

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