create_issue · Linear MCP Server MCP: Risk & Policy

WHAT IT DOES

What create_issue does on Linear MCP Server

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

WHY IT NEEDS A POLICY

Why create_issue needs a policy

This tool creates new data (issues) in a reversible manner—issues can be updated or deleted later. It does not execute arbitrary code, destroy data irreversibly, or move money. Write category is appropriate for data creation operations. Severity is medium because creating issues could spam or clutter a project, but the impact is contained to issue tracking metadata and is reversible via the sibling delete_issue tool.

From the tool's definition Tool name 'create_issue' and description 'Create a new Linear issue' directly indicate data creation. The function creates new records in the issue tracking system.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_issue Rate-limited

create_issue 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": {
    "create_issue": {
      "limits": [
        {
          "counter": "create_issue_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Linear MCP Server, so you can run agents against it safely.

FAQ

Questions about create_issue

What does the create_issue tool do? +

Create a new Linear issue with optional parent linking. Supports self-assignment using. It is categorised as a Write tool in the Linear MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_issue? +

Register the Linear MCP Server MCP server in PolicyLayer and add a rule for create_issue: 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 MCP Server. Nothing to install.

What risk level is create_issue? +

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

Can I rate-limit create_issue? +

Yes. Add a rate_limit block to the create_issue 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 create_issue completely? +

Set action: deny in the PolicyLayer policy for create_issue. 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 create_issue? +

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