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yfmeii

WeChat Mini Program Dev MCP

by yfmeii

page_getData

Retrieve data from the current page of a WeChat mini program. Optionally specify a sub-path to extract only that portion of the data.

Instructions

获取当前页面的数据对象,可选择指定子数据路径。

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
connectionNo
pathNo
Behavior2/5

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

No annotations are provided, so the description carries the full burden. It only states 'get', implying a read operation, but does not disclose any behavioral traits such as side effects, permissions, or rate limits. The description lacks explicit safety or state-change information.

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

Conciseness4/5

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

The description is a single concise sentence, front-loading the purpose. It is efficient in length, but could be more structured to cover multiple aspects (e.g., parameter explanation, usage context). The conciseness is good, but sacrificing completeness.

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?

Given the tool's complexity (nested connection object, no annotations, no output schema), the description is severely incomplete. It does not address the critical connection parameter, nor does it provide any context about return values, prerequisites, or the overall workflow. The agent lacks essential information to use the tool correctly.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters2/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 0%, requiring the description to compensate. The description briefly explains the 'path' parameter as a sub-data path, but completely omits explanation of the 'connection' parameter, which is a complex nested object with many subproperties. This leaves the agent uninformed about the primary 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?

The description clearly states the tool gets the current page's data object, with an optional sub-path. It specifically mentions 'current page', distinguishing it from sibling element-level tools like element_getData. The verb 'get' and resource are explicit.

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 explicit guidance on when to use this tool vs alternatives. The description implies it's for page data, but does not mention when not to use it or suggest alternatives like element_getData for element-level data. The context is only implied by the name and description.

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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