mailchimp_audience_groups

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

With no annotations, the description carries the burden of behavioral disclosure. It fully specifies each sub-operation and its dependencies (e.g., which IDs are needed), and indicates the type of data returned (member counts, matching conditions, group titles). It does not mention pagination/rate limits, but for a read-centric tool this is adequate. No contradictions.

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 dense sentence using semicolons to delineate actions. Every phrase contributes meaning, and the structure is logical. It is longer due to the seven actions, but remains efficient. A slightly more structured list (e.g., bullet-style) could improve scannability but is not necessary.

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 tool with 7 actions and no output schema or annotations, the description covers all actions, their inputs, and outputs at a high level. It omits potential error cases and exact return shapes, but given the tool's complexity and presence of a rich schema, this is comprehensive enough for an agent to select the correct action.

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 coverage is 100% with each parameter described. However, the tool description adds critical value by mapping each action to the exact parameters required, which is not evident from the schema alone (e.g., 'segment_members needs segment_id'). This goes beyond the baseline of 3.

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 explicitly states the tool's focus: 'Segments, tags, and interest groups within one audience' and enumerates exact actions (segments, segment_members, interest_categories, etc.). This clearly differentiates it from sibling tools like mailchimp_audiences (lists) and mailchimp_members (members). The verb 'retrieve' is implied through 'Set action to one of'.

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?

Provides clear context by listing all actions and the required parameters for each (e.g., 'segment needs segment_id', 'interest needs category_id and interest_id'). However, it does not explicitly state when to use this tool over alternatives or provide exclusions, though the action list implicitly covers the decision space.

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