list_milestones

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

With no annotations, the description carries the behavioral transparency burden. 'List' conveys that this is a non-mutating read operation, and 'filtering options' signals parameterized retrieval. However, it does not disclose pagination behavior, return shape, or the practical need for a project identifier, though nothing contradicts the read-only implication.

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 the action front-loaded and no redundant filler. Every word contributes to identifying the tool's purpose and scope.

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 tool with 10 parameters, no annotations, and no output schema, the description is too thin. It does not mention that project_id is effectively required despite the schema listing zero required parameters, nor does it clarify pagination defaults or how this listing relates to get_milestone. The schema explains parameter meanings but not operational prerequisites.

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 all 10 parameters are already individually documented with meaningful descriptions. The tool description only adds the generic phrase 'filtering options' and does not provide additional per-parameter semantics, so it remains at the schema-driven baseline.

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 opens with a specific verb, 'List', names the resource, 'milestones', and scopes it to a GitLab project with filtering options. This clearly distinguishes it from sibling tools like get_milestone, create_milestone, edit_milestone, and delete_milestone, making the plural enumeration intent obvious.

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?

Usage is implied by the verb 'List' and the mention of filtering options, but there is no explicit guidance about when to use this tool versus alternatives such as get_milestone for a single milestone or list_issues for other project items. No when-not-to-use conditions or sibling routing are provided.

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