optimize_imports · TypeScript Tools MCP: Risk & Policy

WHAT IT DOES

What optimize_imports does on TypeScript Tools MCP

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

WHY IT NEEDS A POLICY

Why optimize_imports needs a policy

This tool modifies TypeScript source files by transforming import statements. While the changes are reversible (code remains intact, no deletion or destruction) and don't execute arbitrary code, the tool performs substantive write operations on code structure. The reversible nature and lack of arbitrary code execution place this in Write rather than Execute.

From the tool's definition Tool description explicitly states it modifies import statements: 'removing unused imports, consolidating duplicates, separating types, and optimizing paths' are all write operations that alter code files.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

optimize_imports Rate-limited

optimize_imports 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": {
    "optimize_imports": {
      "limits": [
        {
          "counter": "optimize_imports_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 TypeScript Tools MCP, so you can run agents against it safely.

FAQ

Questions about optimize_imports

What does the optimize_imports tool do? +

Optimize TypeScript import statements by removing unused imports, consolidating duplicates, separating types, and optimizing paths. It is categorised as a Write tool in the TypeScript Tools MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on optimize_imports? +

Register the TypeScript Tools MCP server in PolicyLayer and add a rule for optimize_imports: 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 TypeScript Tools MCP. Nothing to install.

What risk level is optimize_imports? +

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

Can I rate-limit optimize_imports? +

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

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

optimize_imports is provided by the TypeScript Tools MCP server (trkbt10/mcp-typescript-tools). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.