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yangkyeongmo

MCP Server for OpenMetadata

by yangkyeongmo

create_schema

Create a database schema in OpenMetadata by providing schema data via its REST API.

Instructions

Create a new database schema in OpenMetadata

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
schema_dataYes
Behavior1/5

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

With no annotations, the description must disclose behavioral traits but only states the basic function. It does not mention side effects, required permissions, or whether the schema is created within a parent database, leaving the agent uninformed.

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

Conciseness2/5

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

The description is extremely concise but at the expense of necessary detail. For a tool with a complex object parameter, more explanation is warranted; the brevity hinders utility rather than aiding understanding.

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

Completeness1/5

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

The description is incomplete given the tool's complexity. It fails to explain the purpose of 'schema_data' or any constraints, leaving the agent unable to construct a valid request without external knowledge.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters1/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The input schema has a required object parameter 'schema_data' with 0% description coverage, and the description provides no information about its structure or expected properties. The agent has no guidance on how to populate this parameter.

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 (create) and the resource (database schema), effectively distinguishing it from sibling tools like create_database or create_table. However, it lacks additional context about what a schema is in OpenMetadata, slightly reducing clarity.

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 usage guidelines are provided. There is no indication of when to use this tool versus alternatives (e.g., creating a database first) or any prerequisites, forcing the agent to guess the correct workflow.

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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