list_beta_testers

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

No annotations provided, so description bears full burden. Describes read-only listing but lacks details on pagination, sorting, behavior with no filters, or potential side effects. Limit parameter hints at pagination but not explicitly mentioned.

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?

Single sentence with key information front-loaded. Parenthetical list of fields keeps it compact. No superfluous words, but could be slightly more structured for readability.

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 no output schema and straightforward listing task, description adequately covers what is returned and how to filter. Lacks details on pagination or sorting, but acceptable for a simple list tool with high schema coverage.

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 has 100% description coverage for all 4 parameters, so baseline is 3. Description adds marginal value by clarifying that filters can be combined ('Filter by app, beta group and/or email'), but does not provide additional syntax or constraints beyond 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?

Clearly states verb 'List', resource 'TestFlight beta testers', and specifies returned fields (name, email, invite type, state). Mentions filtering by app, beta group, and/or email, distinguishing it from sibling tools like list_beta_groups or list_devices.

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?

Implies usage for listing testers with optional filters, but no explicit when-to-use or when-not-to-use guidance. No reference to alternatives like list_group_testers, which could be more specific.

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