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Create Milestone Tool

create_milestone_tool

Create a new milestone in a GitLab project to track goals and deadlines by specifying the project, title, and optional dates or Markdown description.

Instructions

Create a new milestone in a GitLab project.

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "project_id": "<project_id>",
      "title": "<title>"
    },
    "name": "create_milestone_tool"
  }
}

Input Schema

NameRequiredDescriptionDefault
titleYesMilestone title
due_dateNoDue date (YYYY-MM-DD)
project_idYesProject ID or path
start_dateNoStart date (YYYY-MM-DD)
descriptionNoMilestone description (Markdown)

Output Schema

NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.4.1

TDQS

C2.9/5.0
Behavior2/5

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

No annotations are provided, so the description carries the full behavioral burden. It says only that a milestone is created; it does not disclose required permissions, side effects, whether the operation is reversible, or what happens if fields are omitted.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single front-loaded sentence with no wasted words. It is efficient, though the extreme brevity contributes to the missing usage and behavioral context.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

The input schema is fully documented and an output schema exists, so return values need not be explained. However, for a mutation tool with no annotations, the description is too thin on permissions, side effects, and usage context to be considered fully complete.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

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 five parameters including date formats and Markdown descriptions. The tool description adds no parameter meaning beyond the schema, which is the baseline 3 under full coverage.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description states a specific verb and resource: creating a milestone in a GitLab project. It is clear enough to distinguish from list_milestones_tool and update_milestone_tool, but it does not explicitly name or contrast those siblings.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

There is no guidance on when to use this tool versus alternatives, no prerequisites, and no exclusions. The purpose implies creation, but an agent receives no routing or context cues beyond that.

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