linear_assignIssue · Linear MCP Server MCP: Risk & Policy

WHAT IT DOES

What linear_assignIssue does on Linear MCP Server

AI agents use linear_assignIssue 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 linear_assignIssue needs a policy

This tool creates or modifies data reversibly—changing issue assignments can be undone by reassigning to another user or unassigning. It does not delete data, execute code, move money, or trigger external operations beyond Linear's internal state changes. The moderate severity reflects that misuse could disrupt team workflows by incorrectly assigning high-priority work, but the action is easily reversible.

From the tool's definition Tool name 'linear_assignIssue' and description 'Assign an issue to a user' indicate modifying issue metadata by assigning ownership/responsibility to a team member.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

linear_assignIssue Rate-limited

linear_assignIssue 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_assignIssue": {
      "limits": [
        {
          "counter": "linear_assignissue_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 linear_assignIssue

What does the linear_assignIssue tool do? +

Assign an issue to a user. 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 linear_assignIssue? +

Register the Linear MCP Server MCP server in PolicyLayer and add a rule for linear_assignIssue: 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 linear_assignIssue? +

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

Can I rate-limit linear_assignIssue? +

Yes. Add a rate_limit block to the linear_assignIssue 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_assignIssue completely? +

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

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