ARCLinearGitHub-MCP

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linear_create_issue

Create a new issue in Linear with title, description, project, priority, and labels.

Instructions

Create a new issue in Linear.

Args: title: Issue title description: Optional issue description (supports Markdown) project: Project/team key. Defaults to configured default_project. priority: Priority level (1=Urgent, 2=High, 3=Normal, 4=Low) labels: Optional list of label names to apply

Returns: Dictionary with created issue details or error

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": {
      "title": "<title>"
    },
    "name": "linear_create_issue"
  }
}

Input Schema

Name	Required	Description	Default
`title`	Yes
`labels`	No
`project`	No
`priority`	No
`description`	No

Schema Changelog

Changes observed during successful MCP inspections.

First observedv0.1.0Jul 13, 2026

TDQS

A3.9/5.0

Behavior3/5

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

No annotations are provided, so the description must disclose behavioral traits. It explains that the tool mutates state by creating an issue, notes the default project, and mentions error returns. However, it lacks details on permissions, rate limits, or side effects.

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

Conciseness5/5

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

The description is concise with a clear structure: summary, Args, Returns. Every sentence adds value, and the key purpose is front-loaded. No redundant information.

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?

Given the lack of output schema and annotations, the description covers creation behavior well but omits details like return fields beyond 'dictionary with details'. It is adequate but not exhaustive.

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

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The schema description coverage is 0%, but the description adds meaningful explanations for all parameters (e.g., priority mapping, Markdown support, label usage). This compensates for the schema gap and provides clarity beyond type and default.

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

Purpose5/5

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

The description clearly states 'Create a new issue in Linear' using a specific verb and resource. It is distinct from sibling tools like linear_update_issue and linear_get_issue.

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

Usage Guidelines3/5

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

The description provides parameter details (e.g., project defaults, priority mapping) but does not explicitly state when to use this tool versus alternatives like linear_update_issue. Usage context is implied but not explicit.

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