vscode_select_completion_item

THE RISK

High Risk

Why vscode_select_completion_item needs a policy

This tool interacts with VSCode's UI to select and accept a code completion suggestion, which is a browser/UI action that triggers an external operation (inserting code into the editor). It falls under Execute as it performs a UI interaction with side effects that depend on arguments (which completion item is selected), potentially modifying editor content.

From the tool's definition Select and accept a completion item by its label

Documented attack patterns abuse exactly the kind of access vscode_select_completion_item gives an agent:

POLICY

How to control vscode_select_completion_item

PolicyLayer is an MCP gateway — it sits between your AI agents and VSCode Automation MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for vscode_select_completion_item:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "vscode_select_completion_item": {
      "limits": [
        {
          "counter": "vscode_select_completion_item_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

vscode_select_completion_item stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

Create a free account and register VSCode Automation MCP — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

RATE-LIMIT THIS TOOL →

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EXPLORE

Related tools and policies

More VSCode Automation MCP tools

Destructive vscode_clear_console Clear captured console logs. Execute vscode_execute_command Execute a VSCode command programmatically. Use this to trigger any command available in th Execute vscode_execute_script Execute arbitrary JavaScript code in the VSCode window context (like DevTools console). Ha Execute vscode_go_to_definition Trigger Go to Definition (F12) on the current cursor position. Execute vscode_hover Hover over an element for a specified duration to trigger hover effects. Execute vscode_initialize Initialize the VSCode automation driver. This is called automatically on first tool use, b Execute vscode_trigger_completion Trigger IntelliSense/code completion (Ctrl+Space) and optionally wait for items. Execute vscode_trigger_hover Trigger hover on an element and optionally wait for tooltip to appear. Returns tooltip con

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Go deeper

High-risk tools in VSCode Automation MCP → Every high-risk tool this server exposes, in one view.
All high-risk MCP tools → Every high-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Agent sandbox → Bounding what an agent can execute and where the boundary should sit.
Least privilege for MCP → Granting agents the minimum tool surface the task needs.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about vscode_select_completion_item

What does the vscode_select_completion_item tool do? +

Select and accept a completion item by its label. It is categorised as a Execute tool in the VSCode Automation MCP MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on vscode_select_completion_item? +

Register the VSCode Automation MCP server in PolicyLayer and add a rule for vscode_select_completion_item: 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 VSCode Automation MCP. Nothing to install.

What risk level is vscode_select_completion_item? +

vscode_select_completion_item is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit vscode_select_completion_item? +

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

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

vscode_select_completion_item is provided by the VSCode Automation MCP server (sukarth/vscode-automation-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every VSCode Automation MCP tool call.

Start from VSCode Automation MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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