get_segment_subscribers

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

With no annotations, the description should cover behavioral traits but only states 'Get active subscribers'. It does not mention that this is a read-only operation, that pagination is supported (implied by parameters), or any other side effects or limitations.

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, clear sentence with no unnecessary words. It is appropriately front-loaded with the key action and resource.

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?

The description lacks essential context for a list endpoint: it does not state the return type (presumably a list of subscribers), pagination behavior, or ordering. With no output schema, the description should compensate but does not.

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% description coverage for all three parameters, so the baseline is 3. The description adds no additional meaning beyond the schema, neither explaining format nor purpose beyond the schema descriptions.

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 verb 'Get', the resource 'active subscribers', and the condition 'matching a segment's rules'. This distinguishes it from siblings like get_active_subscribers (unfiltered) and get_segment_details (segment metadata).

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 guidance on when to use this tool vs. alternatives (e.g., get_active_subscribers for all active subscribers, get_subscriber for a single subscriber). The description does not provide context for selection.

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