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Google Tag Manager MCP Server

by rgellis

Get Folder

get_folder

Retrieve a single folder from a Google Tag Manager workspace using the account, container, workspace, and folder IDs.

Instructions

Get one folder from a workspace.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
folder_idYesNumeric folder ID.
account_idYesNumeric Tag Manager account ID.
container_idYesNumeric container ID.
workspace_idYesNumeric workspace ID.

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

B3.2/5.0
Behavior2/5

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

With no annotations, the description carries the burden of disclosing behavior, but it only restates the operation implied by the tool name. It does not mention permissions, error conditions, or whether the operation is a read-only lookup, so the agent gains little beyond the name.

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?

A single, focused sentence with no wasted words. The core operation and scope are front-loaded.

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

Completeness4/5

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

This is a simple fetch with a complete input schema and an output schema, so the minimal description is sufficient for call construction. It could be more complete only by naming the distinguishing sibling or noting a read-only profile, but nothing call-critical is missing.

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 coverage is 100%, so the schema fully documents all four parameters. The description adds only the general context that one folder is scoped to a workspace, not parameter-specific meaning, so the baseline of 3 applies.

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

Purpose4/5

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

The description states a specific operation ('Get one folder') and a scope ('from a workspace'), which is clear. It implicitly distinguishes from list_folders and get_folder_entities by emphasizing singular retrieval, but it does not explicitly name the sibling alternatives.

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 given about when to use this tool versus list_folders, get_folder_entities, or update_folder. The singular phrasing weakly implies single-object lookup, but there is no explicit context, prerequisite, or exclusion.

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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