update_label_color

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

With no annotations provided, the description carries the full burden of disclosing behavior. It does not mention that color can be null to remove a color, how the fields/detailLevel parameters affect the response, or any side effects. The description offers no behavioral insight beyond the obvious.

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 brief but redundant: both sentences convey the same information. It wastes space restating the tool's purpose instead of providing useful details, making it under-specified rather than concisely helpful.

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?

This simple 4-parameter tool has no output schema and no annotations, so the description should explain behavior and parameters. It does neither—ignoring fields/detailLevel, the null color option, and response implications. The description is inadequate for an agent to use the tool correctly.

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 covers 100% of parameters with descriptions, including the nullable color enum and field filtering options. The description adds no additional meaning, so a baseline score of 3 is appropriate given the schema's completeness.

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 'Update the color of a label' is essentially a tautology of the tool name. It states the verb and resource but adds no scope or differentiation from sibling tools like update_label or update_label_name, making it minimally informative.

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 usage guidance is provided. The phrase 'Use this tool to change the color of a label' is a restatement, not a guideline. There is no mention of when to choose this over update_label or update_label_name, nor any prerequisites or contextual cues.

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