linear_createIssue

Create a new issue in Linear

SERVERLinear SOURCE@linear-mcp-server

Medium RISK CLASS

Category Write

Parameters 120 required

Recommended Rate-limitedsee the rule below

Registry record Grade D, identity verified Pull the record →

This record as markdown: /tools/linear/linear-createissue.md

WHAT IT DOES

What linear_createIssue does on Linear

AI agents use linear_createIssue to create or update resources in Linear, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Linear environment.

Parameter	Type	Required	Description
`title`	string	—	Title of the issue
`teamId`	string	—	ID of the team the issue belongs to
`cycleId`	string	—	ID of the cycle to add the issue to
`dueDate`	string	—	The date at which the issue is due (YYYY-MM-DD format)
`stateId`	string	—	ID of the workflow state for the issue
`estimate`	number	—	The estimated complexity/points for the issue
`labelIds`	array	—	IDs of the labels to attach to the issue
`parentId`	string	—	ID of the parent issue (to create as a sub-task)
`priority`	number	—	Priority of the issue (0 = No priority, 1 = Urgent, 2 = High, 3 = Normal, 4 = Low)
`projectId`	string	—	ID of the project the issue belongs to
`sortOrder`	number	—	The position of the issue in relation to other issues
`assigneeId`	string	—	ID of the user to assign the issue to

Parameters from the server's own tool schema.

RISK

Why linear_createIssue is rated Medium

This tool creates new data (an issue) in the Linear project management system. Creation is a Write operation as it is reversible—the issue can be edited or deleted later. Severity is medium because an AI agent misusing this could create many spurious issues, cluttering the project and potentially affecting team workflows, but the impact is limited in scope and can be remediated.

From the tool's definition Tool name contains 'create' and description states 'Create a new issue in Linear', which is a reversible data modification operation.

Risk signalsHigh parameter count (15 properties)

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs linear_createIssue safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Linear, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For linear_createIssue, this is the rule to start with:

linear_createIssue Rate-limited

linear_createIssue stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "linear_createIssue": {
      "limits": [
        {
          "counter": "linear_createissue_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Linear, apply this rule, and every linear_createIssue call is checked against it from then on.

FAQ

Questions about linear_createIssue

What does the linear_createIssue tool do? +

Create a new issue in Linear. It is categorised as a Write tool in the Linear MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does linear_createIssue accept? +

linear_createIssue accepts 12 parameters: title, teamId, cycleId, dueDate, stateId, estimate, labelIds, parentId, priority, projectId, sortOrder, assigneeId. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on linear_createIssue? +

Register the Linear MCP server in PolicyLayer and add a rule for linear_createIssue: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Linear. Nothing to install.

What risk level is linear_createIssue? +

linear_createIssue is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit linear_createIssue? +

Yes. Add a rate_limit block to the linear_createIssue rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block linear_createIssue completely? +

Set action: deny in the PolicyLayer policy for linear_createIssue. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides linear_createIssue? +

linear_createIssue is provided by the Linear MCP server (@linear-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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