attack-surface

attack-surface is a command for Claude Code from HermeticOrmus/LibreSecOps-Claude-Code. It costs 37 tokens per session (997 once invoked), scanned A, original, MIT.

A tool for mapping how users, systems, and attackers can enter an application or infrastructure. It identifies entry points, trust boundaries, data flows, and valuable targets.

In plain words
What is it for?
Use it before penetration testing or threat modelling, and after architecture changes, to inspect ports, services, domains, routes, APIs, and deployment settings.
Why use it?
It gives security reviews a complete view of what is exposed and where an attack could begin or move next.

Command for Claude Code

Written for Claude Code: argument-hint in frontmatter.

Part of the penetration-testing plugin — 1 skill, 2 commands, 2 agents shipped together

Good fit Use it before penetration testing or threat modelling, and after architecture changes, to inspect ports, services, domains, routes, APIs, and deployment settings.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/hermeticormus/libresecops-claude-code/attack-surface
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/HermeticOrmus/LibreSecOps-Claude-Code

Made for: Claude Code.

Or install penetration-testing, the plugin that ships this one along with the rest of its 1 skill, 2 commands, 2 agents.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for attack-surface

README.md
[![agentmods](https://agentmods.dev/badge/commands/hermeticormus/libresecops-claude-code/attack-surface/github.svg)](https://agentmods.dev/commands/hermeticormus/libresecops-claude-code/attack-surface)
Your own site
<a href="https://agentmods.dev/commands/hermeticormus/libresecops-claude-code/attack-surface"><img src="https://agentmods.dev/badge/commands/hermeticormus/libresecops-claude-code/attack-surface/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for attack-surface

Your own site · 80×15
<a href="https://agentmods.dev/commands/hermeticormus/libresecops-claude-code/attack-surface"><img src="https://agentmods.dev/badge/commands/hermeticormus/libresecops-claude-code/attack-surface.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 37 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 997 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00037 $0.00997
Opus 5.5 $0.00015 $0.00399
Sonnet 5.5 $0.00007 $0.00199
Haiku 4.5 $0.00004 $0.00100

Measured 12d ago against content hash e29de892b115, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

attack-surface scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/penetration-testing/commands/attack-surface.md · 135 lines

How it starts

The opening of the file, as written. The whole thing — 135 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/attack-surface

Map the attack surface of a system or application, identifying all entry points, trust boundaries, data flows, and high-value targets.

Trigger

Use this command when:

  • Starting a penetration test or security assessment (first step after scoping)
  • Evaluating the security posture of a new or inherited system
  • Preparing for a threat modeling session (attack surface feeds into threat models)
  • Assessing the impact of architectural changes on security exposure

Input

Required:

  • Target: Project directory, architecture description, or system documentation

Optional:

  • Focus: external (internet-facing only), internal (authenticated/internal), full (both)
  • Depth: quick (entry points only), detailed (entry points + data flows + trust boundaries)

Process

Step 1: Entry Point Enumeration

Identify every point where data enters the system:

Network Layer:

  • Open ports and services (from configuration files, Dockerfiles, deployment manifests)
  • Load balancer and reverse proxy configurations
  • DNS records and subdomains (from infrastructure-as-code)

Application Layer:

  • HTTP routes and API endpoints (from code)
  • GraphQL queries and mutations
  • WebSocket message handlers
  • File upload endpoints
  • Webhook receivers
  • Email processing endpoints (if applicable)
  • Message queue consumers
  • Scheduled job inputs (cron jobs that fetch external data)

Authentication Entry Points:

  • Login forms and endpoints
  • Registration flows
  • Password reset mechanisms
  • OAuth callback URLs
  • SSO/SAML endpoints
  • API key submission points
  • MFA verification endpoints

Step 2: Trust Boundary Mapping

Identify where trust levels change:

  • External to DMZ: Internet-facing services, WAF/CDN boundaries
  • DMZ to internal: API gateways, reverse proxies, load balancers
  • Service to service: Inter-service communication, service mesh boundaries
  • Application to data: Database connections, cache access, file system access
  • User roles: Anonymous to authenticated, user to admin, tenant to tenant
  • Environment boundaries: Development to staging, staging to production

Read the full file on GitHub · 135 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 12d ago Changed · +5 lines · +37 tokens per session e29de892b115
  2. 1mo ago First seen · 130 lines · 0 tokens per session scan A 8d6298ac08bf

Subscribe to this mod's changes

attack-surface is a command published in the GitHub repository HermeticOrmus/LibreSecOps-Claude-Code (4 stars, last pushed 9d ago), licensed MIT. It adds 37 tokens to every session and 997 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.