# run_lookupsid

A execute tool on the Pentester-MCP MCP server.

Agent View of the PolicyLayer registry record for `run_lookupsid`. HTML page: https://policylayer.com/tools/halilkirazkaya-pentester-mcp/run-lookupsid

## Facts

- Tool: `run_lookupsid`
- Server: Pentester-MCP (`halilkirazkaya/pentester-mcp`) — https://policylayer.com/tools/halilkirazkaya-pentester-mcp.md
- Homepage: https://github.com/halilkirazkaya/pentester-mcp
- Risk category: Execute (High risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Rate-limited

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "run_lookupsid",
    "arguments": {}
  }
}
```

## Why run_lookupsid is rated High

This tool executes a penetration testing utility (lookupsid) whose effects are determined by the arguments provided. Lookupsid is used to query Windows systems for user and group information, which constitutes reconnaissance code execution. While not destructive or financial, it performs active system enumeration that could expose sensitive information or be part of a broader attack chain.

From the tool's own definition: "Tool name 'run_lookupsid' indicates execution of the lookupsid utility, a reconnaissance tool commonly used in penetration testing to enumerate user accounts and SIDs (Security Identifiers) on Windows systems."

## Use case

AI agents invoke run_lookupsid to trigger actions in Pentester-MCP. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.

## Recommended policy (PolicyLayer)

Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Pentester-MCP:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "run_lookupsid": {
      "limits": [
        {
          "counter": "run_lookupsid_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on Pentester-MCP (336)

- `dnscat_client` — Execute — https://policylayer.com/tools/halilkirazkaya-pentester-mcp/dnscat-client.md
- `execute_weevely_module` — Execute — https://policylayer.com/tools/halilkirazkaya-pentester-mcp/execute-weevely-module.md
- `generate_weevely_agent` — Execute — https://policylayer.com/tools/halilkirazkaya-pentester-mcp/generate-weevely-agent.md
- `identify_hash` — Execute — https://policylayer.com/tools/halilkirazkaya-pentester-mcp/identify-hash.md
- `john_prepare` — Execute — https://policylayer.com/tools/halilkirazkaya-pentester-mcp/john-prepare.md
- `launch_xsser_gui` — Execute — https://policylayer.com/tools/halilkirazkaya-pentester-mcp/launch-xsser-gui.md
- `manage_brew` — Execute — https://policylayer.com/tools/halilkirazkaya-pentester-mcp/manage-brew.md
- `manage_dirb_dictionaries` — Execute — https://policylayer.com/tools/halilkirazkaya-pentester-mcp/manage-dirb-dictionaries.md
- `manage_mounts` — Execute — https://policylayer.com/tools/halilkirazkaya-pentester-mcp/manage-mounts.md
- `manage_sliver_daemon` — Execute — https://policylayer.com/tools/halilkirazkaya-pentester-mcp/manage-sliver-daemon.md
- `manage_wpprobe` — Execute — https://policylayer.com/tools/halilkirazkaya-pentester-mcp/manage-wpprobe.md
- `monitor_fping` — Execute — https://policylayer.com/tools/halilkirazkaya-pentester-mcp/monitor-fping.md
- `objection_explore` — Execute — https://policylayer.com/tools/halilkirazkaya-pentester-mcp/objection-explore.md
- `objection_patch` — Execute — https://policylayer.com/tools/halilkirazkaya-pentester-mcp/objection-patch.md
- `run_403bypasser` — Execute — https://policylayer.com/tools/halilkirazkaya-pentester-mcp/run-403bypasser.md
- `run_addcomputer` — Execute — https://policylayer.com/tools/halilkirazkaya-pentester-mcp/run-addcomputer.md
- `run_aircrack_action` — Execute — https://policylayer.com/tools/halilkirazkaya-pentester-mcp/run-aircrack-action.md
- `run_aix` — Execute — https://policylayer.com/tools/halilkirazkaya-pentester-mcp/run-aix.md
- `run_alterx` — Execute — https://policylayer.com/tools/halilkirazkaya-pentester-mcp/run-alterx.md
- `run_amass` — Execute — https://policylayer.com/tools/halilkirazkaya-pentester-mcp/run-amass.md
- `run_apktool` — Execute — https://policylayer.com/tools/halilkirazkaya-pentester-mcp/run-apktool.md
- `run_arachni` — Execute — https://policylayer.com/tools/halilkirazkaya-pentester-mcp/run-arachni.md
- `run_arjun` — Execute — https://policylayer.com/tools/halilkirazkaya-pentester-mcp/run-arjun.md
- `run_asnmap` — Execute — https://policylayer.com/tools/halilkirazkaya-pentester-mcp/run-asnmap.md
- `run_atexec` — Execute — https://policylayer.com/tools/halilkirazkaya-pentester-mcp/run-atexec.md
- `run_autobloody` — Execute — https://policylayer.com/tools/halilkirazkaya-pentester-mcp/run-autobloody.md
- `run_autorecon` — Execute — https://policylayer.com/tools/halilkirazkaya-pentester-mcp/run-autorecon.md
- `run_awk` — Execute — https://policylayer.com/tools/halilkirazkaya-pentester-mcp/run-awk.md
- `run_bbot` — Execute — https://policylayer.com/tools/halilkirazkaya-pentester-mcp/run-bbot.md
- `run_binwalk` — Execute — https://policylayer.com/tools/halilkirazkaya-pentester-mcp/run-binwalk.md
- …and 306 more: https://policylayer.com/tools/halilkirazkaya-pentester-mcp.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=halilkirazkaya-pentester-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/halilkirazkaya-pentester-mcp