list_project_milestones

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

Annotations already declare readOnlyHint=true, so the safety profile is covered. The description adds the constraint 'one allowed project', which hints at permission scoping, but does not disclose ordering, pagination, filtering, or error behavior. This is acceptable given the annotations but not rich.

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?

A single, direct sentence with no filler. It communicates the essential action and scope efficiently, earning its place entirely.

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 one-parameter read-only tool with an output schema and annotations, the description is adequate. However, it would benefit from explicitly referencing list_allowed_projects as the source of valid project_id values and clarifying what 'allowed' means in terms of access restrictions.

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 0%, so the description must compensate. It only implies that project_id is a project the agent is allowed to use, without explaining where valid IDs come from or how the 'allowed' constraint is enforced. This adds minimal meaning beyond the parameter name.

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'), a clear resource ('milestones'), and a scope ('one allowed project'), which differentiates it from sibling create/update milestone tools. It is concise and immediately understood.

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 usage context is implied: it is the tool for listing milestones for a single project. However, there is no explicit guidance about when to prefer this tool over alternatives, nor any mention of prerequisites such as using list_allowed_projects to obtain valid project IDs.

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