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sevoniva

OceanBase MCP

by sevoniva

Get Table Summary

ob_get_table_summary

Summarize a database table by inferring its purpose, identifying key fields, revealing relationship hints, and suggesting query entry points.

Instructions

Return a compact table summary with inferred purpose, key fields, relationship hints, and query entry points.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
tableYes
schemaNo
profileNo
maxColumnsNo
includeRelatedNo
relationshipLimitNo
Behavior2/5

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

No annotations are provided, so the description must convey behavioral traits. It describes the output but does not mention permissions, side effects, rate limits, or any limitations. For a read-like operation, the description is insufficiently transparent.

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 a single sentence, which is concise but severely under-specifies the tool given the 6 parameters. It does not front-load the most critical information about what the compact summary includes.

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?

With 6 parameters, no output schema, and no description of return format, the description is incomplete. Terms like 'inferred purpose' and 'key fields' are left undefined, leaving the agent with significant ambiguity about the output.

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% and the description does not explain any of the 6 parameters (table, schema, profile, maxColumns, includeRelated, relationshipLimit). It adds no meaning beyond the schema field definitions.

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 tool returns a 'compact table summary' with specific elements like 'inferred purpose, key fields, relationship hints, and query entry points.' This verb+resource combination is specific and distinct from sibling tools like ob_describe_table or ob_get_table_schema, though it does not explicitly differentiate.

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 on when to use this tool versus alternatives. There is no mention of context, prerequisites, or when not to use it, leaving the agent without decision support.

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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