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PostNitro

by ai.postnitro.mcp
OverviewDiscussionsAdmin

List Templates

postnitro_list_templates
Read-onlyIdempotent

List available carousel templates. Returns template IDs, names, and dimensions.

Use postnitro_set_defaults to save your preferred templateId for future calls.

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": "postnitro_list_templates"
  }
}

Input Schema

NameRequiredDescriptionDefault
pageNoPage number (default: 1)
limitNoResults per page (default: 10, max: 50)

Output Schema

NameRequiredDescriptionDefault
pageYesPage returned
countYesNumber of templates on this page
limitYesPage size used
templatesYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observed

TDQS

A4.1/5.0
Behavior4/5

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

Annotations already declare readOnly, idempotent, and non-destructive behavior. The description adds value by specifying the output fields, which is not in annotations, and does not contradict any annotation.

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?

Description is two sentences, direct, and free of fluff or redundant details. Every word contributes to understanding the tool's function.

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

Completeness5/5

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

For a list operation, the description provides sufficient context: what is listed, what is returned, and a relevant pointer to a companion tool. It is complete given the output schema exists and no nested objects require explanation.

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 descriptions already cover both parameters (page and limit) with defaults and ranges (100% coverage). The description adds no additional parameter semantics beyond what the schema provides, so it remains at baseline.

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?

Description clearly states the verb 'List', the resource 'carousel templates', and explicitly mentions the return fields (IDs, names, dimensions). It is unambiguous and distinguishes from sibling list tools by resource type.

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?

Provides a follow-up action (use postnitro_set_defaults) but does not explicitly state when to use this tool versus alternatives or when not to use it. The guidance is minimal and inferential.

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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