task_labels_add

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

No annotations are provided. The description only restates the tool's action without disclosing behavior such as whether adding an already-existing label causes an error, requires permissions, or any side effects. The return value is not mentioned.

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 concise sentence ('Add a label to a task') with no unnecessary words, efficiently conveying 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?

For a simple add operation, the description covers the basic action. However, it lacks details about error handling (e.g., duplicate label), idempotency, or return value. Given no output schema, more context would be helpful.

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 coverage is 100% with descriptions for both parameters (taskId and labelId). The description adds no extra meaning beyond the schema, so a baseline score of 3 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 'Add a label to a task' clearly states the verb ('Add') and the resource ('label to a task'), directly reflecting the name. It distinguishes from sibling tools like task_labels_remove (removal) and labels_create (creating a new label vs adding an existing one).

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 no guidance on when to use this tool vs alternatives (e.g., labels_create, task_labels_remove). It does not mention prerequisites like whether the label or task must exist, or if the operation is idempotent.

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