analyze_ui_clipboard

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It states it analyzes the clipboard image but does not mention read-only behavior, clipboard access implications, or output format. Important traits for an analysis tool are missing, which could affect agent decision-making.

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 two sentences, front-loaded with the core purpose. It is efficient with no wasted words. However, it could be slightly more concise by avoiding the repetition of 'when the user copied a screenshot instead of providing a file path' which appears both in the description and the context, but overall it is 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 three parameters with enums and no schema descriptions, the description should explain the purpose and usage of each parameter to be complete. While the overall purpose is clear, the lack of parameter details leaves the agent unable to use the tool effectively. The existence of an output schema helps, but the description still falls short.

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 0%, meaning the schema provides no descriptions for the three parameters (goal, style_system, target_framework). The description does not mention or explain any of these parameters, so it adds no meaning beyond the enum lists. The agent has no guidance on how to set goal or target_framework, severely hindering correct invocation.

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 analyzes the OS clipboard image as a UI screenshot or mockup, and lists specific use cases (frontend implementation, UI debugging, etc.). It distinguishes from siblings by specifying when the user copied a screenshot instead of providing a file path, which differentiates it from similar tools like analyze_image or analyze_ui_screenshot.

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 explicit context on when to use the tool: 'when the user copied a screenshot instead of providing a file path.' It lists specific use cases, which helps guide agent selection. However, it does not explicitly state when not to use it or mention alternatives, but the context of sibling tools and the description is sufficient for a score of 4.

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