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mcp-yearning

by zhouweico

yearning_rollback_sql

Read-onlyIdempotent

Retrieve rollback SQL for a specific work order to revert unintended database changes.

Instructions

获取工单的回滚 SQL(执行前由系统生成,用于误操作回退)。

对应 API:GET /api/v2/fetch/roll

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
paramsYes

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior3/5

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

Annotations already declare readOnlyHint=true and idempotentHint=true, so the safety profile is clear. The description adds context that the SQL is generated before execution and used for rollback of misoperations, which is useful but not extensive.

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 extremely concise with two sentences, no superfluous words, and the core purpose is front-loaded.

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?

With a simple input schema and existing annotations, the description is adequate but misses details like the response format (markdown/json) and does not clarify what happens if the work order lacks a rollback SQL.

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%, meaning the schema provides no parameter descriptions. The description does not mention any parameters or their roles, failing to add value beyond the schema structure.

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 '获取工单的回滚 SQL' (get rollback SQL of work order), specifying the verb and resource. It distinguishes from sibling tools like yearning_order_detail or yearning_sql_check by focusing on rollback SQL generated before execution.

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

Usage Guidelines3/5

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

The description implies usage for retrieving rollback SQL when needed, but does not explicitly state when to use or avoid this tool. No alternatives or exclusions are mentioned.

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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