create_milestone

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

Annotations already indicate a write operation (readOnlyHint=false) and non-destructive behavior. The description adds no extra behavioral context such as idempotency, duplicate handling, side effects, or field validation, which could be important for a create operation.

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 with no unnecessary words, making it easy to read and front-loaded. However, it is extremely brief, which slightly reduces value given the tool's parameter complexity.

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?

With five parameters, a lack of output schema, and no parameter descriptions, the description is incomplete. It does not mention required fields (project_id, title), what the tool returns, or any constraints, leaving the agent under-informed.

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?

With schema description coverage at 0%, the description does not explain any of the five parameters. It only vaguely hints at a project context, but fails to convey the meaning or requirement of title, target_date, external_id, and external_source.

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 the specific verb 'Create' with the resource 'milestone' and the context 'in a project', clearly distinguishing this from update/delete/retrieve milestone sibling tools. It precisely states the tool's function.

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 usage for creating new milestones but does not provide explicit guidance on when to use this tool versus alternatives or any prerequisites. There is no mention of using update_milestone for existing milestones or other context.

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