create_label

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

With no annotations provided, the description bears full responsibility for behavioral disclosure. It only states 'Create a new personal label,' omitting details such as whether creation is idempotent, what happens on duplicates, required permissions, or what the response contains. The presence of an output schema partially mitigates the need to describe return values, but other safety and behavioral aspects are missing.

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 concise and front-loaded with the purpose. It avoids unnecessary verbosity. The Args section is acceptable but adds little beyond the schema; still, overall it is efficient.

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 complexity (simple two-parameter creation), the description is minimal. It lacks guidance on usage context, behavioral traits, and does not leverage the presence of output schema to explain response structure. The sibling list_labels tool suggests a complementary action, but no hint is given. The description is incomplete for optimal agent decision-making.

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 description adds some value beyond the schema by providing example color values ('berry_red', 'blue', 'charcoal'), which are not enumerated in the schema. However, it does not explain the purpose of the label or the semantics of 'personal,' and the name parameter is merely restated. Given 0% schema description coverage, the description compensates slightly but insufficiently.

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 'Create a new personal label.' This specifies the action (create) and resource (new personal label), distinguishing it from sister tools like list_labels, create_task, or create_comment. The purpose is immediately clear.

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 guidance is provided on when to use this tool versus alternatives. For example, it does not mention that creating a label is appropriate for categorizing tasks, nor does it warn against using it if only existing labels need to be listed. The agent must infer usage from context.

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