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send16-mcp

send16-mcp

by spruikco
OverviewSchemaSourceRelated ServersDiscussionsAdmin
JavaScript
Hybrid

list_audiences

Retrieve all static, manually-managed audience groups (lists) from your Send16 account. Use this to view contacts organized by audience.

Instructions

List audiences (lists). An audience is a static, manually-managed group of contacts.

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "list_audiences"
  }
}

Input Schema

NameRequiredDescriptionDefault
apiKeyNoSend16 API key (overrides SEND16_API_KEY env var)

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.5.7

TDQS

B3.3/5.0
Behavior2/5

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

No annotations are provided, and the description does not disclose behavioral traits like pagination, sorting, or result limits, which are typical for list operations.

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 extremely concise with two short sentences, no wasted words, and directly conveys the purpose.

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

Completeness3/5

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

The description covers the basic purpose but lacks details on pagination, ordering, or output format, which would be expected for a list operation.

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?

The only parameter (apiKey) is fully described in the schema, and the description adds no extra semantic value beyond what the schema already provides.

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 tool lists audiences and defines what an audience is, distinguishing it from sibling tools like list_contacts or list_segments.

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

Usage Guidelines2/5

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

No guidance is provided on when to use this tool versus alternatives, such as when to use list_contacts or list_segments instead.

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

Deploy Server

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