hwp_switch_tab

THE RISK

High Risk

Why hwp_switch_tab needs a policy

This tool switches the active tab in an HWP window, which is an external application action/interaction. It doesn't read data, write document content, or destroy anything, but it does trigger an operation in an external process (HWP), fitting the Execute category. Blast radius is low since it only changes which tab is focused.

From the tool's definition '특정 탭으로 전환합니다' (switches to a specific tab in the current HWP window) — triggers a UI/window state change in the HWP application

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

POLICY

How to control hwp_switch_tab

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

policy.json

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

hwp_switch_tab 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 HWP MCP Server — 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 HWP MCP Server tools

Destructive hwp_close_all_documents 모든 문서를 닫습니다. Args: save: 저장 후 닫을지 여부 (기본값: False) suppress_dialog: 저장 Destructive hwp_close_window HWP 창을 닫습니다 (저장 안 함). Args: hwnd: 윈도우 핸들 (hwp_list_all_instances로 확인) Re Execute hwp_navigate hwp_navigate Execute hwp_batch_operations hwp_batch_operations Execute hwp_switch_window 다른 HWP 창으로 전환합니다. Args: hwnd: 윈도우 핸들 (hwp_list_windows로 확인) Returns: Write hwp_close_document 현재 문서를 닫습니다. Args: save: 저장 후 닫을지 여부 (기본값: False) suppress_dialog: 저장 Write hwp_create Create a new HWP document. Write hwp_create_complete_document hwp_create_complete_document

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Go deeper

High-risk tools in HWP MCP Server → 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 hwp_switch_tab

What does the hwp_switch_tab tool do? +

현재 HWP 창에서 특정 탭으로 전환합니다. Args: index: 탭 인덱스 (hwp_list_tabs로 확인) Returns: str: 결과 메시지. It is categorised as a Execute tool in the HWP MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on hwp_switch_tab? +

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

What risk level is hwp_switch_tab? +

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

Can I rate-limit hwp_switch_tab? +

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

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

hwp_switch_tab is provided by the HWP MCP Server MCP server (jkf87/hwp-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every HWP MCP Server tool call.

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

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