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sevoniva

OceanBase MCP

by sevoniva

Describe Table

ob_describe_table

Retrieve column metadata for an allowed OceanBase table, including column names, data types, and constraints. Use to inspect table structure.

Instructions

Return column metadata for an allowed OceanBase table.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
tableYes
schemaNo
profileNo
Behavior2/5

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

No annotations provided. Description does not disclose whether tool is read-only, any side effects, authentication needs, or rate limits. For a metadata query, read-only nature is implied but not explicit.

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

Conciseness3/5

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

Single sentence that is minimally concise. However, it is overly terse and adds little value beyond the title. Could include more context without sacrificing conciseness.

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?

Tool has 3 parameters (one required) and 14 siblings. Description fails to explain what column metadata includes, how to use optional parameters, or how this tool differs from similar ones. Incomplete for effective agent use.

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?

Schema description coverage is 0%. Description does not explain the meaning of 'table', 'schema', or 'profile' parameters. An agent cannot infer correct usage, especially for the non-standard 'profile' parameter.

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 it returns column metadata for a table. Verb 'Return' and resource 'column metadata' are specific. Differentiates from siblings like 'ob_get_table_schema' which returns broader schema info.

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 on when to use this tool versus siblings such as 'ob_get_table_schema' or 'ob_get_constraints'. The description lacks context for decision-making.

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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