list_labels

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

With no annotations, the description carries the full burden of disclosing behavioral traits, but it does not state that the operation is read-only, does not mention pagination behavior (despite page/per_page parameters), and gives no indication of error conditions or side effects. This leaves the agent to infer safety, which is a significant gap for a mutation-prone environment.

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 that is front-loaded with the action and resource. It is appropriately sized for the simplicity of the tool and contains no fluff or repetition.

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?

While an output schema exists (so return values need not be described), the description lacks essential context: no mention of pagination, parameter semantics, or operational constraints. Given the 0% schema coverage and missing annotations, the description is not complete enough for an agent to use the tool correctly without additional assumptions.

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 description coverage is 0%, meaning the description must explain parameters, but it only hints at project_id through 'for a project' and completely omits the page and per_page parameters. The agent cannot understand pagination or required inputs from the description alone.

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 a specific verb ('list') with a clear resource ('labels') and scope ('for a project'), which immediately distinguishes it from sibling tools like create_label or list_cards. It is precise and unambiguous.

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 implies when to use it (when you need labels for a project) but provides no explicit guidance on alternatives, prerequisites, or exclusions. It is adequate but minimal, with no mention of when not to use it or how it differs from related tools like create_label.

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