# arjun_parameter_discovery

A execute tool on the Pengstrike MCP server.

Agent View of the PolicyLayer registry record for `arjun_parameter_discovery`. HTML page: https://policylayer.com/tools/pengstrike-mcp/arjun-parameter-discovery

## Facts

- Tool: `arjun_parameter_discovery`
- Server: Pengstrike (`wangqiongpeng/pengstrike-mcp`) — https://policylayer.com/tools/pengstrike-mcp.md
- Homepage: https://github.com/wangqiongpeng/pengstrike-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": "arjun_parameter_discovery",
    "arguments": {}
  }
}
```

## Why arjun_parameter_discovery is rated High

Arjun is an active scanning tool that sends HTTP requests to discover hidden parameters on web targets. This constitutes active execution against external systems. The description is empty, reducing confidence, but the tool name and server context strongly imply active probing/scanning behavior.

From the tool's own definition: "Tool name 'arjun_parameter_discovery' references Arjun, a well-known HTTP parameter discovery tool used in security reconnaissance."

## Use case

AI agents invoke arjun_parameter_discovery to trigger actions in Pengstrike. 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 Pengstrike:

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

## Other tools on Pengstrike (162)

- `cancel_task` — Destructive — https://policylayer.com/tools/pengstrike-mcp/cancel-task.md
- `clear_cache` — Destructive — https://policylayer.com/tools/pengstrike-mcp/clear-cache.md
- `delete_file` — Destructive — https://policylayer.com/tools/pengstrike-mcp/delete-file.md
- `advanced_payload_generation` — Execute — https://policylayer.com/tools/pengstrike-mcp/advanced-payload-generation.md
- `ai_generate_attack_suite` — Execute — https://policylayer.com/tools/pengstrike-mcp/ai-generate-attack-suite.md
- `ai_generate_payload` — Execute — https://policylayer.com/tools/pengstrike-mcp/ai-generate-payload.md
- `ai_reconnaissance_workflow` — Execute — https://policylayer.com/tools/pengstrike-mcp/ai-reconnaissance-workflow.md
- `ai_test_payload` — Execute — https://policylayer.com/tools/pengstrike-mcp/ai-test-payload.md
- `ai_vulnerability_assessment` — Execute — https://policylayer.com/tools/pengstrike-mcp/ai-vulnerability-assessment.md
- `amass_scan` — Execute — https://policylayer.com/tools/pengstrike-mcp/amass-scan.md
- `angr_symbolic_execution` — Execute — https://policylayer.com/tools/pengstrike-mcp/angr-symbolic-execution.md
- `api_fuzzer` — Execute — https://policylayer.com/tools/pengstrike-mcp/api-fuzzer.md
- `arp_scan_discovery` — Execute — https://policylayer.com/tools/pengstrike-mcp/arp-scan-discovery.md
- `autorecon_comprehensive` — Execute — https://policylayer.com/tools/pengstrike-mcp/autorecon-comprehensive.md
- `autorecon_scan` — Execute — https://policylayer.com/tools/pengstrike-mcp/autorecon-scan.md
- `binwalk_analyze` — Execute — https://policylayer.com/tools/pengstrike-mcp/binwalk-analyze.md
- `browser_agent_inspect` — Execute — https://policylayer.com/tools/pengstrike-mcp/browser-agent-inspect.md
- `bugbounty_authentication_bypass_testing` — Execute — https://policylayer.com/tools/pengstrike-mcp/bugbounty-authentication-bypass-testing.md
- `bugbounty_business_logic_testing` — Execute — https://policylayer.com/tools/pengstrike-mcp/bugbounty-business-logic-testing.md
- `bugbounty_comprehensive_assessment` — Execute — https://policylayer.com/tools/pengstrike-mcp/bugbounty-comprehensive-assessment.md
- `bugbounty_file_upload_testing` — Execute — https://policylayer.com/tools/pengstrike-mcp/bugbounty-file-upload-testing.md
- `bugbounty_reconnaissance_workflow` — Execute — https://policylayer.com/tools/pengstrike-mcp/bugbounty-reconnaissance-workflow.md
- `burpsuite_alternative_scan` — Execute — https://policylayer.com/tools/pengstrike-mcp/burpsuite-alternative-scan.md
- `burpsuite_scan` — Execute — https://policylayer.com/tools/pengstrike-mcp/burpsuite-scan.md
- `checkov_iac_scan` — Execute — https://policylayer.com/tools/pengstrike-mcp/checkov-iac-scan.md
- `clair_vulnerability_scan` — Execute — https://policylayer.com/tools/pengstrike-mcp/clair-vulnerability-scan.md
- `comprehensive_api_audit` — Execute — https://policylayer.com/tools/pengstrike-mcp/comprehensive-api-audit.md
- `create_attack_chain_ai` — Execute — https://policylayer.com/tools/pengstrike-mcp/create-attack-chain-ai.md
- `dalfox_xss_scan` — Execute — https://policylayer.com/tools/pengstrike-mcp/dalfox-xss-scan.md
- `dirb_scan` — Execute — https://policylayer.com/tools/pengstrike-mcp/dirb-scan.md
- …and 132 more: https://policylayer.com/tools/pengstrike-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=pengstrike-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/pengstrike-mcp