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mailchimp_search_members

Search for Mailchimp subscribers by email or name across all audiences or narrow to one audience using its ID.

Instructions

Search for subscribers across all or a specific Mailchimp audience.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
api_keyYesMailchimp API key
queryYesSearch query (email address, name, etc.)
list_idNoLimit search to a specific audience ID
Behavior2/5

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

With no annotations, the description carries the full burden of behavioral context. It does not disclose that the tool is read-only (search operation), any authentication needs beyond the api_key parameter, rate limits, pagination behavior, or what happens if the query returns no results.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single sentence that immediately conveys the primary action and scope. No unnecessary words or redundancy.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the lack of annotations and output schema, the description is insufficiently complete. It does not explain return format, whether it supports partial matching, case sensitivity, or how results are ordered. A search tool requires more context for effective use.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so baseline is 3. The description adds minimal value by clarifying that list_id is optional ('across all or a specific audience'), but it does not elaborate on parameter formats or constraints beyond the schema.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the action 'Search for subscribers' and specifies the scope 'across all or a specific Mailchimp audience'. This distinguishes it from sibling tools like mailchimp_list_members (which lists members of a specific audience) and mailchimp_add_member (which adds a member).

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies usage for searching subscribers but does not explicitly guide when to use this tool over siblings like mailchimp_list_members or mailchimp_add_member. No when-not-to-use conditions are provided.

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

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