create_milestone

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

With no annotations provided, the description carries the full burden of behavioral disclosure. The one-line description only states the action ('create') but gives no details on side effects, authorization needs, or other behavioral traits. This is insufficient for a creation tool.

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 sentence, making it concise, but it lacks structure and front-loads no critical information. While not verbose, it is under-specified. A 3 reflects minimal adequacy without penalizing extreme brevity.

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 output schema exists (but not provided) and 5 parameters (2 required), the description fails to explain what a milestone is, how it relates to projects, or any return value context. The description is too sparse to be complete for a creation tool.

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 description coverage is 100%, so the schema already documents all 5 parameters with descriptions. The tool description adds no additional meaning beyond the schema. Per the scoring rule, baseline is 3 when coverage is high, so this score 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 'Create a new milestone' clearly states the verb (create) and resource (milestone). However, it does nothing to distinguish this tool from siblings like create_cycle or create_module, which share the same verb-resource pattern. A 4 is appropriate because the purpose is clear but lacks differentiation.

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 (e.g., when to create a milestone vs a module). There is no mention of prerequisites, such as needing an existing project. This leaves the agent without context for appropriate invocation.

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