# stop_etw_trace

Stop ETW trace, run tracerpt to CSV and summary, return parsed preview (requires elevation).

Agent View of the PolicyLayer registry record for `stop_etw_trace`. HTML page: https://policylayer.com/tools/0xhackerfren-procmon-mcp/stop-etw-trace

## Facts

- Tool: `stop_etw_trace`
- Server: Procmon (`0xhackerfren/procmon-mcp`) — https://policylayer.com/tools/0xhackerfren-procmon-mcp.md
- Homepage: https://github.com/0xhackerfren/ProcMon-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": "stop_etw_trace",
    "arguments": {}
  }
}
```

## Why stop_etw_trace is rated High

This tool executes external commands (tracerpt) and manipulates system trace state by stopping ETW (Event Tracing for Windows) traces. While not destructive in the sense of data deletion, it executes arbitrary operations on system internals that depend on runtime arguments and state.

From the tool's own definition: "Tool description explicitly states 'Stop ETW trace, run tracerpt' — this involves executing a command (tracerpt) and terminating system tracing. The 'requires elevation' note indicates this performs privileged system operations."

## Use case

AI agents invoke stop_etw_trace to trigger actions in Procmon. 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 Procmon:

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

## Other tools on Procmon (17)

- `request_elevation` — Execute — https://policylayer.com/tools/0xhackerfren-procmon-mcp/request-elevation.md
- `start_etw_trace` — Execute — https://policylayer.com/tools/0xhackerfren-procmon-mcp/start-etw-trace.md
- `timed_capture` — Execute — https://policylayer.com/tools/0xhackerfren-procmon-mcp/timed-capture.md
- `analyze_pe` — Read — https://policylayer.com/tools/0xhackerfren-procmon-mcp/analyze-pe.md
- `capture_snapshot` — Read — https://policylayer.com/tools/0xhackerfren-procmon-mcp/capture-snapshot.md
- `check_elevation` — Read — https://policylayer.com/tools/0xhackerfren-procmon-mcp/check-elevation.md
- `find_pe_files` — Read — https://policylayer.com/tools/0xhackerfren-procmon-mcp/find-pe-files.md
- `get_minifilters` — Read — https://policylayer.com/tools/0xhackerfren-procmon-mcp/get-minifilters.md
- `get_network_connections` — Read — https://policylayer.com/tools/0xhackerfren-procmon-mcp/get-network-connections.md
- `get_process_details` — Read — https://policylayer.com/tools/0xhackerfren-procmon-mcp/get-process-details.md
- `get_security_events` — Read — https://policylayer.com/tools/0xhackerfren-procmon-mcp/get-security-events.md
- `get_system_info` — Read — https://policylayer.com/tools/0xhackerfren-procmon-mcp/get-system-info.md
- `list_drivers` — Read — https://policylayer.com/tools/0xhackerfren-procmon-mcp/list-drivers.md
- `list_etw_providers` — Read — https://policylayer.com/tools/0xhackerfren-procmon-mcp/list-etw-providers.md
- `list_processes` — Read — https://policylayer.com/tools/0xhackerfren-procmon-mcp/list-processes.md
- `list_services` — Read — https://policylayer.com/tools/0xhackerfren-procmon-mcp/list-services.md
- `query_event_log` — Read — https://policylayer.com/tools/0xhackerfren-procmon-mcp/query-event-log.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=0xhackerfren-procmon-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/0xhackerfren-procmon-mcp