# startCobaltStrikeWebsocketStreams

Start the default Cobalt Strike WebSocket subscriptions.

Agent View of the PolicyLayer registry record for `startCobaltStrikeWebsocketStreams`. HTML page: https://policylayer.com/tools/cobalt-strike-cobaltstrike-mcp-server/startcobaltstrikewebsocketstreams

## Facts

- Tool: `startCobaltStrikeWebsocketStreams`
- Server: Cobalt Strike MCP Server (`cobalt-strike/cobaltstrike-mcp-server`) — https://policylayer.com/tools/cobalt-strike-cobaltstrike-mcp-server.md
- Homepage: https://github.com/Cobalt-Strike/cobaltstrike-mcp-server
- 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": "startCobaltStrikeWebsocketStreams",
    "arguments": {}
  }
}
```

## Why startCobaltStrikeWebsocketStreams is rated High

This tool triggers external operations (WebSocket stream initialization) within a C2 framework where consequences depend on what subscriptions are activated and what commands follow. While not directly destructive or financial, it establishes communication channels that enable subsequent beacon execution and control operations.

From the tool's own definition: "The tool 'startCobaltStrikeWebsocketStreams' initiates WebSocket subscriptions within Cobalt Strike, a C2 (command & control) framework used for adversary simulation and red team operations."

## Use case

AI agents invoke startCobaltStrikeWebsocketStreams to trigger actions in Cobalt Strike MCP Server. 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 Cobalt Strike MCP Server:

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

## Other tools on Cobalt Strike MCP Server (8)

- `executeBeaconConsoleAndWait` — Execute — https://policylayer.com/tools/cobalt-strike-cobaltstrike-mcp-server/executebeaconconsoleandwait.md
- `lintBeaconInterpreterC` — Execute — https://policylayer.com/tools/cobalt-strike-cobaltstrike-mcp-server/lintbeaconinterpreterc.md
- `runBeaconInterpreterC` — Execute — https://policylayer.com/tools/cobalt-strike-cobaltstrike-mcp-server/runbeaconinterpreterc.md
- `getBeaconConsoleTail` — Read — https://policylayer.com/tools/cobalt-strike-cobaltstrike-mcp-server/getbeaconconsoletail.md
- `getCobaltStrikeWebsocketStatus` — Read — https://policylayer.com/tools/cobalt-strike-cobaltstrike-mcp-server/getcobaltstrikewebsocketstatus.md
- `getDownloadedFileText` — Read — https://policylayer.com/tools/cobalt-strike-cobaltstrike-mcp-server/getdownloadedfiletext.md
- `getLiveBeaconSnapshot` — Read — https://policylayer.com/tools/cobalt-strike-cobaltstrike-mcp-server/getlivebeaconsnapshot.md
- `getRecentEventLogTail` — Read — https://policylayer.com/tools/cobalt-strike-cobaltstrike-mcp-server/getrecenteventlogtail.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=cobalt-strike-cobaltstrike-mcp-server · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/cobalt-strike-cobaltstrike-mcp-server