numasec

by FrancescoStabileVerified

The AI Agent for Cyber Security.

474
Stars
50
Forks
TypeScript
Language
8/23/2026
Added
View on GitHubDownload ZIP

⚠️ Third-Party Software Notice

This skill is third-party open-source software developed and hosted independently on GitHub. SkillTip is an informational directory and does not control or maintain the underlying repository. Any security checks displayed are automated and limited in scope. Review the source code before installing.

Read the Terms of Service

Installation

Add to your Claude Code skills directory:

# Add to your Claude Code skills
git clone https://github.com/FrancescoStabile/numasec

Getting Started

Guides for using skills like numasec.

Security Report

Verified

Last scanned: —

{
  "status": "PASSED",
  "issues": []
}

README.md

What is numasec?

numasec is an AI security agent that runs in your terminal.

It uses the tools already installed on your machine, follows security runbooks, switches between cyber agents, keeps the operation context alive, tracks findings, stores evidence and helps turn the work into reports.

It is built for people who already live between shell, browser, HTTP requests, scanners, advisories, notes and reports.

  • Not a chatbot.

  • Not a scanner wrapper.

  • Not a Burp or Kali replacement.

A security agent for the workflow you already have.

Demo

Why numasec

Security work does not happen in one clean place.

You move between terminal commands, browser work, HTTP requests, local tools, scanners, advisories, notes, screenshots, findings and reports.

AI can help, but only if it lives inside that workflow.

numasec gives the model a security workspace instead of just a chat box. It keeps the target, scope, tools, runbooks, findings, evidence, replay and report state together while the work is happening.

The goal is simple:

make security work feel faster, sharper and less scattered.

numasec is strongest today for authorized AppSec and Pentest workflows. Other cyber surfaces exist or are possible, but they are not marketed as equally mature yet.

Why now

Coding agents changed how developers work.

They read code, run commands, edit files, execute tests and stay inside the development loop.

Security needs the same shift, but security work has different constraints.

A security agent needs to know the target, stay inside scope, use the local toolchain, remember what happened, separate noise from findings and keep enough context to produce useful output later.

That is what numasec is trying to become:

the open source AI security agent for the terminal.

What it feels like

Open numasec inside the workspace you are testing, pick the right security agent, check which local tools are available, then start a runbook and let the agent help you move through the workflow.

When the work changes, switch posture. When something matters, keep the finding, evidence, replay and report context close to the operation instead of scattering it across shell history, screenshots and notes.

Then come back later and resume without starting from zero.

Product tour

numasec starts like a terminal agent, then the security work begins, and it becomes a workspace.

You get the model, the active agent, the command palette, the working directory and the prompt. The point is not to leave your terminal; the point is to make the terminal smarter.

Findings are not dumped into chat: they live in the operation, where each one can carry state, severity, evidence, replay status and next action, so the agent can keep working without losing the thread.

Weak signals can stay weak. Rejected claims remain visible. Reportable findings need proof.

Security work changes shape. AppSec, Pentest, OSINT, CTF/lab and research do not need the same posture, so you can switch the agent when the work changes instead of forcing one generic assistant to behave the same way everywhere.

Operations are durable. Name them, rename them, resume them and export them. A security workflow should not disappear because the chat ended.

Try it

npm install -g numasec
numasec

Then start with a local lab, CTF, owned app or authorized target:

/doctor
/mode appsec
/runbook run appsec-web-triage http://localhost:3000
/share

Run numasec from the workspace you are testing and keep the target scope explicit.

What it does

Capability What it gives you

AI security agent A model that works inside your terminal instead of sitting in a separate chat window.

Local tools numasec uses the tools installed on your machine and shows what is available, missing or degraded.

Runbooks Security workflows that keep the agent moving through a real task instead of random tool calls.

Agents Switch posture with TAB for AppSec, Pentest, OSINT, CTF/lab and research-style work.

Operation memory Keep target, scope, activity, findings, evidence, replay and report state together.

Findings workflow Track security signals as they move from weak ideas to useful findings.

Evidence and replay Keep the material needed to understand, verify and reproduce important work.

Cyber knowledge Bring vulnerability intelligence, advisories, methodology and tool docs into the workflow.

Reports Generate deliverables from the operation instead of reconstructing everything at the end.

Share bundles Export the work so it can be reviewed, resumed or handed off.

Built for

numasec is for people who want an AI agent inside their security workflow, not beside it.

  • AppSec engineers triaging web apps, APIs, dependencies, auth flows and reports.

  • Pentesters moving through scoped work with terminal tools, notes, evidence and deliverables.

  • Bug bounty hunters who want to move faster without losing target context.

  • Security researchers jumping between shell, browser, HTTP, advisories, tradecraft and notes.

  • CTF and lab users who want structure while still keeping direct control of the tools.

numasec is for authorized security work. Use it only on systems you own, labs, CTFs, or targets where you have permission to test.

How the workflow fits together

numasec is not just a prompt with tools.

It keeps the security workflow connected: target, operation, posture, runbook, local tools, observations, findings, evidence, replay and report.

flowchart LR
  target["Target"] --> operation["Operation"]
  operation --> posture["Scope + opsec + autonomy"]
  posture --> runbook["Runbook"]
  runbook --> tools["Local cyber tools"]

  tools --> evidence["Evidence"]
  evidence --> observations["Observations"]
  observations --> findings["Findings"]
  findings --> proof["Replay / proof"]
  proof --> report["Report"]

  operation -. source of truth .-> kernel["Cyber kernel"]
  kernel --> evidence
  kernel --> findings
  kernel --> report

  classDef primary fill:#04130d,stroke:#00ff88,color:#eafff4,stroke-width:2px;
  classDef secondary fill:#061014,stroke:#00c2ff,color:#eaf9ff,stroke-width:1.5px;
  classDef proofNode fill:#151104,stroke:#ffcc66,color:#fff7df,stroke-width:1.5px;
  classDef findingNode fill:#190808,stroke:#ff5f6d,color:#fff0f0,stroke-width:1.5px;

  class target,operation,posture,runbook,tools primary;
  class evidence,observations,kernel secondary;
  class proof,report proofNode;
  class findings findingNode;

The important part: the operation does not live only in chat. numasec keeps a durable record of the work so the agent can continue, the operator can review, and the report can come from what actually happened.

How numasec is different

Most AI security tools fall into one of two traps: they only talk, or they only wrap tools. numasec tries to do something different: keep the workflow alive while the a

Frequently Asked Questions

What is numasec?

numasec is an open-source ai agents skill for AI coding assistants such as Claude Code, Codex CLI, and ChatGPT, built by FrancescoStabile. The AI Agent for Cyber Security. It has 474 GitHub stars.

Is numasec safe to use?

Yes. numasec passed SkillsLLM's automated security scan — a dependency vulnerability audit plus prompt-injection heuristics — with no high-severity issues. You can read the full report in the Security Report section on this page.

How do I install numasec?

Clone the repository with "git clone https://github.com/FrancescoStabile/numasec" and add it to your Claude Code skills directory (see the Installation section above).

What programming language is numasec written in?

numasec is primarily written in TypeScript. It is open-source under FrancescoStabile on GitHub, so you can review or fork the full source.

Are there alternatives to numasec?

Yes. SkillsLLM lists many other AI Agents skills you can browse and compare side by side. Open the AI Agents category from the badge at the top of this page, or use the Related Skills and comparison links further down to weigh numasec against similar tools.

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