Cybermes AI Agent
Autonomous Offensive Security, Bug Bounty & Red Teaming Agent Framework powered by Hermes Agent, specialized reasoning skills, and multi-model LLM orchestration.
Cybermes is an open-source ai agent by Zyrexnn, written mainly in Python, with 987 GitHub stars and the Apache-2.0 license. Its code was last updated Oct 31, 2026. The latest npm release is cybermes-mcp 3.5.1, published Nov 13, 2026, with 331 downloads last week.
Cybermes
Autonomous Offensive Security & Bug Bounty Automation Framework
<p align="center"> <a href="https://trendshift.io/repositories/176726?utm_source=trendshift-badge&utm_medium=badge&utm_campaign=badge-trendshift-176726" target="_blank" rel="noopener noreferrer"> <img src="https://trendshift.io/api/badge/trendshift/repositories/176726/daily?language=Python" alt="Zyrexnn%2FCybermes | Trendshift" width="250" height="55"/> </a> </p> <img src="assets/bannerterbaru.jpeg" alt="Cybermes Architecture & Operational Pipeline" width="100%" style="border-radius: 8px; margin: 18px 0;"> <p align="center"> <b>Cybermes</b> is an offensive security assistant and automation framework designed for authorized bug bounty hunting, reconnaissance, vulnerability research, and structured reporting. <br> It combines native Go performance utilities, 200+ modular offensive security playbooks, token-optimized streaming pipelines, and full Model Context Protocol (MCP) support for AI coding environments. </p>Installation • Architecture • Why Cybermes? • Features • Workspace Structure • Toolchain • Documentation • Sponsors
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Installation & Setup
Cybermes can be used directly through your AI assistant via Model Context Protocol (MCP) or executed as a standalone CLI / pipeline.
1. MCP Server Installation (Recommended for AI Workflows)
Cybermes includes a high-performance native Go MCP server (cybermes-mcp) that exposes 10+ security tools and context providers directly to AI coding environments (Google Antigravity / Gemini, Kilo Code, Cursor, Claude Desktop, Windsurf, Cline, Roo Code, OpenCode, Claude Code CLI, Continue.dev, Zed, Hermes, and Codex).
Universal Auto-Installer (1-Click)
# Auto-detect and configure all installed AI clients
npx -y cybermes-mcp install
# Install ONLY to specific AI providers:
npx -y cybermes-mcp install --kilo
npx -y cybermes-mcp install --gemini --cursor
Global Installation (No NPX Startup Latency)
npm install -g cybermes-mcp
cybermes-mcp install --global
Local Interactive MCP Manager & Optimizer
# Windows
.\mcp.bat # or .\mcp.ps1
# Linux / macOS
./mcp.sh # or python3 scripts/mcp.py
Manual Client Configuration
To manually register the MCP server in your client configuration (mcpServers section):
{
"mcpServers": {
"cybermes": {
"command": "npx",
"args": ["-y", "cybermes-mcp"]
}
}
}
For client-specific paths, direct flags (
--kilo,--gemini,--global,--dry-run), and native binary setup, see the MCP Integration Guide.
2. Standalone CLI Installation
If you plan to run Cybermes directly from the terminal or in headless CI/CD pipelines:
Windows (Native PowerShell)
# Clone repository and execute installer
git clone https://github.com/Zyrexnn/Cybermes.git
cd Cybermes
.\setup_windows.ps1
# Configure environment variables and API keys
notepad .env
(For WSL2 or manual setups, refer to the Windows Installation Guide)
Linux / macOS
# Clone repository and execute installer
git clone https://github.com/Zyrexnn/Cybermes.git
cd Cybermes
./setup.sh
# Configure environment variables and API keys
nano .env
Docker Container
git clone https://github.com/Zyrexnn/Cybermes.git && cd Cybermes
cp .env.example .env && nano .env
docker compose up -d
3. Environment Health Check
Verify system dependencies, path bindings, and tool integrity:
# Run environment diagnostics
python tools/doctor.py
# Automatically resolve and repair missing components
python tools/doctor.py --fix
4. Running an Assessment
# Linux / macOS
./cybermes "Assess https://example.com"
# Windows
.\cybermes.bat "Assess https://example.com"
# Docker
docker compose exec cybermes cybermes "Assess https://example.com"
Local Testing: Run the included mock vulnerable application in
examples/:python examples/mock_vulnerable_app.py # Starts mock app on http://127.0.0.1:8888 ./cybermes "Assess http://127.0.0.1:8888"
Architecture & Operational Pipeline
Cybermes provides two distinct operational workflows tailored to different execution environments:
- Autonomous Hermes CLI Workflow: Fully autonomous terminal/headless execution where the local Hermes engine reasons, spawns subprocesses, filters streaming outputs via
smart_pipe, and executes validation loops directly on the OS. - Model Context Protocol (MCP) Server Workflow: Client-Server architecture exposing 10+ high-performance native Go tools and 200+ security SOPs over JSON-RPC 2.0 stdio to external AI coding assistants and IDEs (Gemini/Antigravity, Claude Desktop, Cursor, Windsurf, Cline, Roo Code).
1. 🤖 Autonomous Hermes CLI Workflow
The standalone CLI mode utilizes the built-in Hermes Agent engine (hermes.exe / cybermes) as an autonomous reasoning brain. The operator provides a target prompt, and Hermes autonomously maps the attack surface, invokes CLI binaries, filters outputs through smart_pipe to prevent LLM context saturation, verifies hypotheses with standalone PoC scripts, and produces executive reports.
Hermes CLI Execution Flow:
flowchart LR
subgraph P1["1. Scope & Recon"]
direction TB
A([CLI Input]) --> B[Hermes Agent]
B --> C[Recon Tools]
C --> D[smart_pipe Filter]
end
subgraph P2["2. Skill & Validation Gate"]
direction TB
D --> E[Knowledge & SOPs]
E --> F[Validation Gate]
F --> G[Run PoC Script]
end
subgraph P3["3. Deliverables"]
direction TB
G --> H[reports/ Workspace]
H --> I([Executive Reports])
end
P1 ==> P2 ==> P3
Hermes Pipeline Stages:
- Target Ingestion & Scope Validation: Operator issues a single CLI prompt. Hermes resolves domain boundaries and initializes target workspace directories (
recon/<TARGET_SLUG>/andreports/<TARGET_SLUG>/). - Autonomous Toolchain Orchestration: Hermes spawns external reconnaissance tools (
subfinder,httpx,katana,ffuf) in sequence. - High-Speed Stream Filtering (
smart_pipe): Raw outputs are archived to disk inrecon/whilesmart_pipestreams only relevant endpoints, HTTP status codes, and leaked secrets into Hermes' context window. - Hypothesis & Skill Retrieval: Hermes queries the offline database (
search_knowledge) and loads relevant offensive playbooks fromskills/. - Deterministic PoC Validation Gate: Hermes writes and executes a non-destructive script (
pocs/poc_<vuln>.py), capturing raw HTTP request/response evidence. - Report Compilation: Calls native Go
aggregate_reportsandgenerate_pdf.pyto compileSUMMARY.md,metadata.json, interactivereport.html, andREPORT_<target>.pdf.
2. 🔌 Cybermes MCP Server Workflow
In the MCP workflow, Cybermes operates as a native JSON-RPC 2.0 server (cybermes-mcp) providing specialized security tools, prompts, and context providers directly to external AI assistants and IDEs (Cursor, Antigravity / Gemini, Claude, Windsurf, VS Code / Cline). The external model acts as the reasoning engine while Cybermes handles high-speed tool execution, local knowledge lookups, and reporting.
MCP Protocol Execution Flow:
flowchart LR
Client([AI Editor / IDE]) <-->|JSON-RPC 2.0 stdio| MCP[Cybermes MCP: cybermes-mcp]
subgraph Tools["Modular Capabilities"]
direction TB
T1[Recon & Probing]
T2[200+ SOPs & Knowledge]
T3[Secrets & Nuclei Scan]
T4[Findings & Evidence]
end
MCP <--> Tools
Tools --> Out[(reports/SLUG/ Deliverables)]
MCP Tooling & Interaction Lifecycle:
- Handshake & Discovery: AI Client starts
cybermes-mcpvia stdio and discovers exposed tools, schemas, and resource templates. - Environment & Scope Assessment: The AI invokes
cybermes_validate_scopeandcybermes_check_environmentto inspect target authorization and system tool health. - Structured Recon & Secret Mining: AI executes
cybermes_recon_crawl,cybermes_http_probe, orcybermes_scan_secrets. The MCP server executes compiled routines and returns clean, structured JSON results without context bloat. - On-Demand Playbook & Exploit Lookup: When a vulnerability vector is identified, the AI calls
cybermes_search_knowledgeandcybermes_get_skillto retrieve targeted exploitation steps in sub-50ms. - Deterministic Evidence Recording & Aggregation: AI logs verified findings with
cybermes_record_finding/cybermes_record_evidenceand compiles target deliverables viacybermes_aggregate_report.
3. ⚖️ Hermes CLI vs. Cybermes MCP Comparison
| Feature / Dimension | 🤖 Hermes CLI Workflow | 🔌 Cybermes MCP Workflow |
|---|---|---|
| Primary Interface | Terminal / PowerShell / Docker CLI | AI Coding Editors / IDEs / Web Chat (JSON-RPC) |
| Reasoning Engine | Built-in Hermes Autonomous Agent (hermes.exe) | Host AI Client (Gemini, Claude 3.7, GPT-4o, etc.) |
| Execution Model | Autonomous sub-process loop from CLI prompt | Modular Tool & Context calls requested by the AI |
| Token Optimization | OS pipe streaming via Go smart_pipe | Native JSON-RPC schema with compact response filters |
| Knowledge Access | CLI binary execution (search_knowledge) | In-memory MCP tools (cybermes_search_knowledge, cybermes_get_skill) |
| Deliverables Output | Direct filesystem generation in reports/<TARGET_SLUG>/ | Programmatic management via cybermes_aggregate_report |
Why Cybermes?
| Challenge | Traditional Approach | Cybermes Solution |
|---|---|---|
| AI Assistant Integration | Manual copy-pasting of terminal outputs or fragile custom wrappers. | Native Go MCP Server (cybermes-mcp): Standardized JSON-RPC 2.0 integration exposing 10+ security tools directly to AI clients. |
| LLM Token & Context Noise | Fuzzer/crawler outputs flood context with thousands of lines of 404s and static assets. | High-Speed Stream Filter (smart_pipe): Pure Go filter that archives raw logs to disk while streaming only high-signal endpoints, status codes, and secrets. |
| Exploit Verification | Speculative or pattern-matched alerts without reproducible verification. | Zero-False-Positive PoC Gate: Requires standalone, non-destructive Python scripts (pocs/poc_<name>.py) and raw HTTP traces before logging findings. |
| Payload & Methodology Retrieval | Manually searching external wikis, repositories, and cheat sheets online. | Sub-50ms Local Knowledge Base (search_knowledge): Instant offline query engine across 200+ SOP playbooks, PayloadsAllTheThings, and HackTricks datasets. |
| Structured Deliverables | Unorganized text dumps requiring tedious manual report compilation. | Multi-Format Report Aggregator: Automated generation of SUMMARY.md, metadata.json, standalone interactive HTML, and print-ready REPORT_<target>.pdf. |
| OS & Environment Portability | Most offensive tools assume Kali/Linux, complicating Windows setups. | Native Multi-Platform Support: Automated native installers for Windows (PowerShell), Linux, macOS, and Docker with a built-in health check and repair tool (doctor.py). |
Core Features
- Native Go Toolchain: Zero-overhead compiled utilities for output stream filtering (
smart_pipe), credential scanning (secret_scan), offline knowledge retrieval (search_knowledge), and report aggregation (aggregate_reports). - Model Context Protocol (MCP): Native Go MCP server (
cybermes-mcp) exposing security tools and context providers to AI assistants like Claude Desktop, Cursor, Windsurf, and VS Code / Cline. - 200+ Offensive Playbooks: Standard operating procedures in
skills/covering API security (IDOR/BOLA, JWT, BPLA), web vulnerabilities (SSRF, XSS, SQLi, Race Conditions), and cloud misconfigurations. - Integrated Reconnaissance: Pre-configured pipelines for
subfinder,httpx,katana,ffuf,nuclei, andsqlmap. - Target Workspace Isolation: Strict target-scoped evidence tracking, preventing context contamination across engagements.
- Multi-Format Reporting: Automated output generation in Markdown (
SUMMARY.md), JSON metrics (metadata.json), standalone HTML dashboards, and PDF reports (REPORT_<target>.pdf). - Cross-Platform Compatibility: Fully supported on Windows (native PowerShell), Linux, macOS, and Docker.
Target Workspace & Deliverables
Every target assessment creates a dedicated directory structure under reports/ and recon/:
Cybermes/
├── reports/<TARGET_SLUG>/ # Verified findings & deliverables
│ ├── SUMMARY.md # Consolidated executive findings matrix
│ ├── metadata.json # Structured JSON metrics & counters
│ ├── report.html # Standalone interactive HTML report
│ ├── REPORT_<target>.pdf # Print-ready PDF report (named per assessed target)
│ ├── findings/ # Confirmed vulnerability writeups (low, medium, high, critical)
│ │ └── high_idor_orders.md
│ ├── pocs/ # Standalone Python proof-of-concept scripts
│ │ └── poc_idor_orders.py
│ └── evidence/ # Raw logs, screenshots, recon notes
│ └── recon_notes.md
└── recon/<TARGET_SLUG>/ # Raw tool outputs & streaming dumps
├── subdomains.txt
└── endpoints.txt
Toolchain
| Tool | Type | Purpose | Standard Syntax |
|---|---|---|---|
smart_pipe | Go Binary | Stream output filter & context token optimizer | katana -u <url> | smart_pipe --target <slug> --tool katana |
secret_scan | Go Binary | Multi-pattern credential leak scanner | secret_scan recon/<slug>/ |
search_knowledge | Go Binary | Sub-50ms offline exploit & payload search | search_knowledge "jwt algorithm confusion" |
aggregate_reports | Go Binary | Markdown findings indexer & report compiler | aggregate_reports <slug> |
cybermes-mcp | Go Binary / NPX | Native MCP Server for AI assistants | npx -y cybermes-mcp |
subfinder | External | Passive subdomain discovery | subfinder -d <target> -silent |
httpx | External | Web probing & technology fingerprinting | httpx -u <url> -tech-detect |
katana | External | Web crawler & SPA endpoint miner | katana -u <url> -depth 3 |
ffuf | External | High-speed web fuzzer | ffuf -u <url>/FUZZ -w <wordlist> |
nuclei | External | Template-based vulnerability scanner | nuclei -u <url> -tags cve |
sqlmap | Python | Automated SQL injection auditor | sqlmap -u "<url>?id=1" --batch |
doctor.py | Python | Environment health check & auto-repair | python tools/doctor.py --fix |
generate_pdf.py | Python | PDF and HTML executive report generator | python tools/generate_pdf.py <slug> |
Documentation
Detailed guides and references are available in the docs/ directory:
- Windows Installation Guide — Setup via PowerShell, WSL2, and troubleshooting.
- MCP Setup Guide — Integration guide for all supported AI coding editors and clients.
- Prompt Engineering Guide — Structuring security research prompts effectively.
- Telegram Gateway Setup — Configuring remote execution via Telegram.
- Tools & Skills Reference — Breakdown of offensive playbooks and built-in tools.
- Troubleshooting & FAQ — Common error resolutions and diagnostics.
Acknowledgments & Upstream Credits
Cybermes includes and references tools, wordlists, and research from the following open-source projects:
| Project / Tool | Maintainer / Author | Contribution / Reference |
|---|---|---|
| HackTricks | @carlospolop | Privilege escalation, service exploitation & offensive knowledge base |
| PayloadsAllTheThings | @swisskyrepo | Web application payloads and bypass vectors |
| ProjectDiscovery Suite | @projectdiscovery | Core toolchain (nuclei, httpx, subfinder, katana) |
| SQLMap | Bernardo Damele & Miroslav Stampar | Automated SQL injection auditor |
| Claude-BugHunter | @elementalsouls | Bug bounty engagement patterns & validation playbooks |
| Strix Framework | @usestrix | Autonomous multi-agent coordination architecture |
| FFuF | @joohoi | High-speed web fuzzer |
| Hermes-Agent | @NousResearch | Autonomous agent core framework |
| SecLists | @danielmiessler | Curated security assessment wordlists & fuzzing vectors |
| Hack-Skills | @yaklang | Offensive security skill modules & testing playbooks |
(See ATTRIBUTION.md for full license notices and upstream details)
Contributors
<a href="https://github.com/Zyrexnn/Cybermes/graphs/contributors"> <img src="https://contrib.rocks/image?repo=Zyrexnn/Cybermes" alt="Cybermes Contributors" /> </a>Want to contribute? Check out our Contributing Guide and Contributors List.
License
This project is licensed under the Apache License 2.0.
Third-party research materials, datasets, and upstream tools referenced or incorporated within this repository retain their respective original licenses (see ATTRIBUTION.md).
Legal & Ethical Disclaimer
IMPORTANT: Cybermes is developed exclusively for authorized security testing, legitimate bug bounty research, and academic security education.
Testing against targets without explicit, prior written permission from the target owner is illegal and strictly prohibited. The maintainers assume no liability and are not responsible for any misuse, damage, or legal consequences resulting from this tool.
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