qt-mcp

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 discloses that the tool returns 'all Qt properties, geometry, parent chain, and more,' which gives some behavioral context about the output. However, it lacks details on error handling, performance, or side effects. The description adds value but is not fully transparent about behavioral traits.

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 appropriately sized and front-loaded: the first sentence states the purpose, followed by a clear 'Args' section with an example, and a 'Returns' note. Every sentence earns its place without redundancy, making it efficient and well-structured.

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?

Given the tool has 1 parameter, no annotations, and an output schema exists, the description is reasonably complete. It explains the parameter's semantics and hints at the return content. However, it could benefit from more details on usage context or limitations, but the output schema likely covers return values, reducing the burden.

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?

The input schema has 1 parameter with 0% description coverage, so the description must compensate. It provides semantics for 'ref' by explaining it is a 'Widget ref from qt_snapshot (e.g., 'w5').' This adds meaningful context beyond the schema's basic type information, clarifying the parameter's source and format.

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 purpose: 'Get detailed properties of a specific widget.' It uses a specific verb ('Get') and resource ('widget'), but does not explicitly differentiate it from sibling tools like 'qt_snapshot' or 'qt_object_tree', which might provide related widget information. The purpose is clear but lacks sibling distinction.

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 implies usage by specifying that 'ref' should come from 'qt_snapshot', which suggests a workflow dependency. However, it does not explicitly state when to use this tool versus alternatives like 'qt_snapshot' (which might list widgets) or 'qt_object_tree' (which might show hierarchy). The guidance is implied but not comprehensive.

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