analyze_color_scheme

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

With no annotations, the description must carry the full burden of behavioral disclosure, but it does not. It only states the action without describing any side effects, output format, limitations, or required permissions. 'Analyze' implies read-only, but the description does not explicitly confirm this or disclose any other behavioral traits, earning a low transparency score.

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, front-loaded sentence that states the verb and target clearly with zero wasted words. It is concise and directly conveys the core purpose.

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?

The tool is simple with one parameter fully described, but the lack of an output schema and lack of any mention of the return format leaves a gap. The description tells what it analyzes but not what the agent can expect as a result, making it minimally complete but not fully self-sufficient.

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 schema has 100% coverage for the single parameter 'image_data' with its description 'Base64 encoded image data'. The tool description adds no new parameter-level meaning beyond what the schema already provides. Baseline is 3, which is appropriate.

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 uses the specific verb 'Analyze' with a clear resource ('color palette and harmony') and context ('in a design'). It is distinguishes itself from sibling tools like analyze_layout, analyze_typography, and analyze_accessibility, and from check_color_contrast which focuses on contrast rather than overall palette harmony.

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?

No explicit when-to-use or when-not-to-use guidance is provided. The description does not mention alternatives or any exclusions, leaving the agent to infer usage solely from the name and purpose. This is similar to the 'update_drive' example which scored 2 for lacking usage context.

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