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aliyun

Alibaba Cloud DMS MCP Server

Official
by aliyun

searchDatabase

Read-only

Search databases in Alibaba Cloud DMS by name, with support for pagination to navigate through results.

Instructions

Search databases in DMS by name.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
search_keyYesdatabase name to search for
page_numberNoPage number (starting from 1)
page_sizeNoResults per page (max 1000)
Behavior3/5

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

The annotation readOnlyHint=true already signals a read-only operation. The description adds no additional behavioral traits beyond what annotations provide, such as potential limits on search results or pagination behavior. Since annotations cover the read-only nature, a score of 3 is appropriate.

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 that front-loads the key purpose. No extraneous words; every word earns its place.

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?

The description lacks details on what the search returns (e.g., list of database names, full details?). There is no output schema, so the description should clarify the return format. Sibling tools like getDatabase hint at richer outputs, but searchDatabase leaves the result ambiguous.

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 all three parameters described (search_key, page_number, page_size). The description does not add extra meaning beyond the schema; it mentions 'by name' which maps to search_key, but the schema already states that. Thus baseline 3.

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?

The description clearly states the action (search), the resource (databases), and the context (by name in DMS). This distinguishes it from sibling tools like getDatabase (single database retrieval) and listInstances (list instances).

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies usage when searching databases by name, but does not explicitly describe when to use it over alternatives like getDatabase or listInstances, nor does it provide exclusions. The context is clear but lacks explicit guidance.

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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