miniapp_understand_file_role

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

No annotations are present, so the description must fully disclose behavioral traits. It does not mention whether the tool reads files, requires network access, has side effects, or any limitations. The description is too brief to provide adequate transparency.

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

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

The description is a single concise sentence that directly states the tool's function. It is front-loaded with the core purpose and contains no redundant or irrelevant information.

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

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

No output schema exists, so the description should clarify the return format or structure. It mentions explaining role, clues, and next steps, but does not specify how this information is presented (e.g., text, structured data). Given the complexity of the domain and many sibling tools, the description is insufficiently complete.

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

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

Schema description coverage is 67% (2 of 3 params described). The tool description adds no parameter-specific information; it does not explain the missing 'projectPath' parameter or add meaning beyond the schema for existing ones. The description fails to compensate for the schema's gaps.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's action (explain), the resource (file role in a WeChat Mini Program project), and the output (upstream/downstream clues and next steps for beginners). It distinguishes from sibling tools like miniapp_understand_feature_impact and miniapp_understand_project_flow by its specific focus on file roles.

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

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 over alternatives, no exclusion conditions, and no context for when it is appropriate. It only states what the tool does, leaving the agent to infer usage from the name.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.