pentestcode 1.0.3

A Claude Code-style agentic CLI for penetration testing. Sandboxed (Docker), provider-agnostic (LiteLLM), with workflows and sub-agents.

Pentest Code

A Claude Code–style agentic CLI for penetration testing. Same terminal UI, same tool-loop feel — but every command runs inside an isolated Docker sandbox, it talks to any model provider via LiteLLM, and it can spin up workflows and sub-agents just like Claude Code.

╭┄ Pentest Code  v1.0.3 ┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄╮
┊                                                                       ┊
┊  Welcome to Pentest Code       ╭┄ Recent activity ┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄╮  ┊
┊                                ┊ 2m ago    Probed sandbox (14 tools) ┊  ┊
┊     ▄█████▄                    ┊ just now  anon FTP on 10.0.0.5:21   ┊  ┊
┊    █████████                   ╰┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄╯  ┊
┊    ██ ▄ ▄ ██                   ╭┄ Getting started ┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄╮  ┊
┊    █████████                   ┊ /workflow recon  run an engagement  ┊  ┊
┊    ███▄█▄███                   ┊ /auto · /manual  toggle approvals   ┊  ┊
┊    █▀█▀█▀█▀█                    ┊ Task             spin up sub-agents ┊  ┊
┊  anthropic/claude-sonnet-4     ╰┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄╯  ┊
┊  manual mode · /root/engagement                                       ┊
╰┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄╯
──────────────────────────────────────────────────────────────────────────
  > Try "recon 10.0.0.0/24 and enumerate services"  ·  /help

⏺ Bash(nmap -sV 10.0.0.5)
  ⎿  22/tcp  open  ssh     OpenSSH 8.9
     80/tcp  open  http    nginx 1.18.0
     … +3 lines

The UI mirrors Claude Code's welcome dashboard — dashed panels, a title on the top edge, a neutral (braille) working spinner, and a > input with a rule above it. No Claude branding: a pixel skull stands in for the mascot.

⚠️ Authorised testing only. Use this exclusively against systems you own or have explicit written permission to test. You are responsible for staying in scope and complying with the law.

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Highlights

Feature	Details
Claude Code UI	Welcome box, ⏺ tool bullets, ⎿ result branches, live spinner, todo checklist, bordered prompt, inline approval menu, clay accent.
Two modes only	manual — approve every command; auto — nothing is asked. Toggle with shift+tab or /auto / /manual.
Docker-only sandbox	All commands execute via docker exec in a Kali-based container. No local-execution fallback — your host is never touched.
Any provider (LiteLLM)	Anthropic, OpenAI, Gemini, Groq, Mistral, DeepSeek, OpenRouter, Ollama/vLLM, or a LiteLLM proxy. Just set PENTESTCODE_MODEL.
Workflows	Scripted multi-step engagements (/workflow recon) defined in YAML.
Sub-agents	The Task tool spawns autonomous sub-agents that can recurse and fan out, sharing the sandbox + state.
Sandbox memory	A persistent sandbox_state.json records OS, installed tools/libraries, wordlists, engagement facts and findings — so the model never starts from zero.

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Requirements

• Docker installed and running (the only execution backend).
• Python 3.9+ on the host to run the CLI.
• An API key for whichever model provider you choose.

Install

pip install pentestcode

That's it — you do not need to clone the repo or run docker build yourself. The sandbox image (Kali + common pentest tools) is defined by a Dockerfile bundled inside the package, and Pentest Code builds it automatically on first run. First launch takes a few minutes while the image builds.

Prefer to build it ahead of time, or inspect/customise the Dockerfile?

pentestcode build-sandbox           # build + start the sandbox now, then exit
pentestcode --print-dockerfile      # print the bundled Dockerfile
pentestcode --print-dockerfile > Dockerfile && docker build -t pentest-code-sandbox:latest .

From a clone (for development) the root Dockerfile is used automatically:

git clone https://github.com/Arpitpm23/pentestcode && cd pentestcode
pip install -e .

Set at minimum a model and its key (LiteLLM reads keys from the environment):

export PENTESTCODE_MODEL=anthropic/claude-sonnet-4-20250514
export ANTHROPIC_API_KEY=sk-ant-...
# …or OpenAI:
export PENTESTCODE_MODEL=openai/gpt-4o
export OPENAI_API_KEY=sk-...
# …or a local Ollama model (OpenAI-compatible):
export PENTESTCODE_MODEL=openai/llama3.1
export OPENAI_API_BASE=http://localhost:11434/v1
export OPENAI_API_KEY=ollama

Run

pentestcode          # or: python -m pentestcode  (aliases: ptc, pentest-code)

On first launch it will build/start the sandbox container and probe it once for installed tools (cached in the state file). Then you get the prompt.

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Modes

• manual (default): every Bash command, Write, and Edit shows an inline approval box — Yes / Yes, don't ask again for <tool> / No, tell it what to do instead. Reads and searches never prompt.
• auto: tools execute immediately with no prompts.

Switch anytime with shift+tab, or /auto / /manual / /mode.

Commands

/help                 show help
/status               model, mode, sandbox and state summary
/mode [manual|auto]   show or set the mode
/auto  /manual        switch mode
/model <name>         switch model (LiteLLM format)
/state [refresh]      show persistent sandbox state (refresh re-probes)
/sandbox [restart]    sandbox status / recreate container
/workflows            list workflows
/workflow <name>      run a workflow (prompts for inputs)
/clear                fresh conversation (keeps sandbox + state)
/exit                 quit (container keeps running)

Workflows

Built-ins live in pentestcode/workflows/; drop your own YAML into .pentestcode/workflows/ and they show up automatically.

/workflows
/workflow recon         # asks for: scope  (e.g. 10.0.0.0/24)
/workflow web-audit     # asks for: url

A workflow is an ordered list of steps; each step feeds a prompt to the agent (steps share context, or set isolated: true to run as a dedicated sub-agent).

name: recon
description: External recon of a target scope.
inputs: [scope]
steps:
  - name: Host discovery
    prompt: "Discover live hosts in {scope}; save to loot/hosts.txt."
  - name: Port scan (parallel)
    isolated: false
    prompt: "Scan each host; delegate one 'recon' sub-agent per host via Task."

Sub-agents

The model can call the Task tool to delegate focused work to an autonomous sub-agent (e.g. one per host/service). Sub-agents:

• run their own tool loop with a specialised prompt (recon / web / exploit / post / general),
• share the same sandbox and the same sandbox_state.json,
• can spawn their own sub-agents up to max_subagent_depth (default 3),
• return only a final report to the parent (keeping context lean).

Limits live in .pentestcode/config.json (max_subagents, max_subagent_depth).

The sandbox-state file (memory)

./.pentestcode/sandbox_state.json is the agent's long-term memory of the sandbox. It stores:

• OS + kernel, and a per-tool inventory (present/missing, path),
• installed Python libraries and available wordlists,
• engagement scope/targets/creds and durable findings + notes.

It is injected (compactly) at the top of every session, so the model doesn't re-check what it already knows. The model curates it with the UpdateState tool; you can view it with /state and force a re-probe with /state refresh. A full re-probe only happens automatically when the sandbox image changes.

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Architecture

pentestcode/
├── cli.py            REPL: bootstrap sandbox, slash commands, prompt loop
├── agent.py          agent loop: stream → tool-calls → observe; sub-agent spawn
├── llm.py            LiteLLM client (streaming + tool-call reconstruction)
├── sandbox.py        Docker-only executor (exec, cwd persistence, file I/O)
├── state.py          persistent sandbox state + one-shot probe
├── prompts.py        system prompts (main + sub-agent specialisations)
├── workflow.py       YAML workflow engine
├── config.py         modes / model / sandbox settings (env + JSON)
├── tools/            Bash, Read, Write, Edit, Grep, Glob, TodoWrite,
│                     UpdateState, Task
├── ui/               theme + console (banner, tool render, spinner,
│                     approval menu, bordered input) — the Claude Code look
└── workflows/        built-in recon.yaml, web-audit.yaml

Flow: cli starts the Docker sandbox and probes it → Agent sends the conversation + tool schemas to the model via llm → tool calls are gated by the mode (manual approval) and executed in the sandbox → results feed back into the loop → durable knowledge is saved to the state file.

Extending

• New tool: subclass Tool in pentestcode/tools/, set name, description, parameters (JSON schema), requires_approval, implement run(args, ctx), and register it in tools/__init__.py.
• New workflow: add a YAML file to .pentestcode/workflows/.

Notes & limits

• Multiple Task calls in one turn run sequentially (readable terminal output), but there is no low cap — a parent can fan out up to max_subagents.
• The sandbox mounts ./loot → /root/engagement so scan output/loot persists.
• SYN scans etc. need raw sockets — the container is started with NET_RAW/NET_ADMIN (configurable in config.py).

License

MIT — see LICENSE.