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compare_schemas

Compares database schemas between two connections and optionally generates a SQL migration script to align them.

Instructions

Compare schemas between two database connections

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
sourceConnectionIdYesThe source connection ID to compare from
targetConnectionIdYesThe target connection ID to compare to
includeMigrationScriptNoGenerate SQL migration script
Behavior2/5

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

No annotations are provided, and the description fails to disclose any behavioral implications such as whether the operation is read-only, requires special permissions, or has side effects like generating migration scripts. The user is left without information about the tool's impact.

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, clear sentence with no redundant words. It is appropriately concise and well-structured, conveying the core purpose efficiently.

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

Completeness3/5

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

The description is minimal and does not explain what the comparison result looks like (e.g., a diff report, a list of differences). While no output schema is provided, the absence of any mention of output format or behavior leaves the tool's complete functionality unclear.

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?

The input schema already covers all three parameters with descriptions (sourceConnectionId, targetConnectionId, includeMigrationScript). The description adds no extra meaning beyond the schema, so it meets the baseline for full coverage without enhancing understanding.

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 tool's function with a specific verb ('Compare') and resource ('schemas between two database connections'). It is distinct from sibling tools like get_table_schema, which focuses on a single table's schema.

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?

The description provides no guidance on when to use this tool versus alternatives (e.g., get_table_schema). It only states the action without context or conditions, leaving the agent to infer appropriate usage.

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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