color_elements

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

With no annotations, the description must disclose behavioral traits, but it only states that unique parameter values get distinct colors. It does not clarify whether this is a temporary visual override or a permanent change, whether existing colors are overwritten, how customColors affect the assignment, or what happens to elements missing the parameter. This is a significant gap for a mutating tool.

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 main action, and contains no filler. Every word contributes to understanding the tool's purpose and basic mechanic.

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 lack of annotations and output schema, the description is under-specified for a tool with four parameters and side effects. It does not explain how colors are applied, how long they persist, what customColors do in detail, or how the gradient option behaves. The description conveys the core idea but omits important operational context.

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?

All schema properties have descriptions, so schema coverage is 100%. The tool description adds no new parameter-level information beyond repeating 'category' and 'parameter value.' Baseline 3 is appropriate because the schema already documents each parameter.

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: 'Color elements in the current view based on a category and parameter value.' It uses a specific verb ('Color'), identifies the resource ('elements in the current view'), and mentions the basis ('category and parameter value'), which distinguishes it from sibling tools like delete_element or create_line_based_element.

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 makes the primary usage context explicit: coloring elements in the current view by category and parameter value. It implies a visualization/review workflow, but does not explicitly discuss when to avoid this tool or compare it to alternatives. Still, the context is clear enough to guide selection among siblings.

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