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fivetran

Fivetran MCP Server

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by fivetran

modify_transformation_project

Update an existing transformation project by providing its unique identifier and a JSON request body with the desired changes.

Instructions

⚠️ WRITE OPERATION - Confirm with user before calling. Updates transformation project if a valid identifier was provided.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
project_idYesThe unique identifier for the transformation project
schema_fileYesREQUIRED: You must first read the schema file at 'open-api-definitions/transformation-projects/modify_transformation_project.json', then provide this exact path here to confirm.
request_bodyYesJSON string containing the request body. Refer to the schema file for the expected structure.
Behavior2/5

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

With no annotations, the description carries full burden for behavioral disclosure. It only states it's a write operation requiring confirmation, but omits details like required permissions, side effects, idempotency, or return value, leaving significant gaps.

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

Conciseness4/5

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

The description is very concise, using one sentence plus a warning emoji. It is front-loaded with the critical alert. No extraneous text.

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 no annotations, no output schema, and the tool being a write operation, the description is insufficient. It lacks information on post-update behavior, error conditions, permissions, or usage examples.

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 baseline is 3. The description adds no additional meaning beyond the already-detailed schema descriptions for project_id, schema_file, and request_body.

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 it updates a transformation project, clearly identifying the action and resource. While it doesn't explicitly differentiate from sibling tools like create_transformation_project, the purpose is unambiguous.

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 warns to confirm with the user before calling, indicating it's a mutating operation. However, it doesn't provide information on when not to use it or suggest alternative tools for related tasks.

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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