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Google Tag Manager MCP Server

by rgellis

Get Transformation

get_transformation

Retrieves a specific transformation from a Google Tag Manager workspace by providing account, container, workspace, and transformation IDs.

Instructions

Get one transformation from a workspace.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
account_idYesNumeric Tag Manager account ID.
container_idYesNumeric container ID.
workspace_idYesNumeric workspace ID.
transformation_idYesNumeric transformation ID.

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

B3.1/5.0
Behavior2/5

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

There are no annotations, so the description carries the full burden of behavioral disclosure. It only says 'Get', which implies a read operation, but it does not state whether the operation is read-only, what permissions are required, or what part of the transformation data is returned.

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 concise sentence with no filler words. It is front-loaded with the core action and resource, making it efficiently scannable.

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?

An output schema exists, so return-value structure is likely documented elsewhere. However, with no annotations and no usage guidance, the description leaves the agent to infer when to use this tool versus sibling getters, making it minimally complete but not rich.

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%, with each required parameter documented as a numeric ID. The description adds no additional semantic detail beyond what the schema already provides, so the baseline score of 3 is appropriate.

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 clearly states the action (Get), the resource (transformation), and the scope (from a workspace). It implies a single-entity retrieval, which differentiates it from list_transformations, though it does not explicitly name any sibling tool.

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 about when to use this tool rather than list_transformations or other getter tools. There are no exclusions, prerequisites, or alternative recommendations.

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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