linear_create_project_milestone

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

With no annotations provided, the description must carry the full burden of behavioral disclosure, but it merely states the action. It does not explain authentication requirements, potential side effects, error behavior, or whether the milestone is immediately created. This is insufficient for an agent to understand the tool's behavior.

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 minimal (one sentence), which is concise, but it lacks enough detail to be truly useful. It earns its place by stating the purpose, but additional information about usage or outcomes would improve it without making it overly long.

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 output schema, annotations, and the presence of 5 parameters (2 required), the description is too sparse. It should at minimum indicate success behavior or return values. For a creation tool, agents need to know if the milestone object is returned or if a confirmation is given.

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 has 100% coverage with descriptions for all 5 parameters, so the schema already handles param semantics. The description adds no additional meaning. Per guidelines, baseline is 3, and no extra value is provided.

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 is a clear verb+resource: 'Create a new project milestone'. It directly states the action and the object. However, it does not differentiate from sibling tools like linear_update_project_milestone or linear_create_issue, which could cause confusion for an agent selecting among many tools.

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 guidelines are provided. The description does not indicate when to use this tool versus alternatives like updating or deleting milestones, nor does it mention prerequisites such as having the correct project ID or permissions.

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