vbs-scan-security

vbs-scan-security is a skill for Claude Code, Codex from tanviet12/vbsec. It costs 75 tokens per session (3,809 once invoked), scanned A, original, MIT.

A security scanner for AI-generated code, also called vibe code. It checks common vulnerabilities across several programming languages and can scan the whole repository or selected changes.

In plain words
What is it for?
Use it for full-repository audits, uncommitted or staged changes, diffs, and security reviews of Go, PHP, Python, TypeScript, .NET, and other supported code.
Why use it?
It helps find security problems before code is committed or released, including issues that are easy to miss during ordinary review.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/tanviet12/vbsec/vbs-scan-security
Any agent
npx skills add tanviet12/vbsec --skill vbs-scan-security
Clone the repo
git clone --depth 1 https://github.com/tanviet12/vbsec

Made for: Claude Code, Codex.

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 vbs-scan-security

README.md
[![agentmods](https://agentmods.dev/badge/skills/tanviet12/vbsec/vbs-scan-security.svg)](https://agentmods.dev/skills/tanviet12/vbsec/vbs-scan-security)
Your own site
<a href="https://agentmods.dev/skills/tanviet12/vbsec/vbs-scan-security"><img src="https://agentmods.dev/badge/skills/tanviet12/vbsec/vbs-scan-security.svg" alt="Measured on agentmods" height="20"></a>
Per session 75 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,809 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00075 $0.03809
Opus 5 $0.00037 $0.01904
Sonnet 5 $0.00015 $0.00762
Haiku 4.5 $0.00007 $0.00381

Measured 5d ago against content hash e0c9cba9a96b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

vbs-scan-security 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 5d 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.

skills/antigravity/vbs-scan-security/SKILL.md · 337 lines

How it starts

The opening of the file, as written. The whole thing — 337 lines — stays where its author put it; the contents beside it link to each section on GitHub.

vbsec — Security Scanner cho Vibe Coders (Antigravity variant)

Quét lỗ hổng bảo mật cho code do AI sinh ra (vibe code). Bộ skill này check 21 lỗi bảo mật phổ biến nhất của vibe code, kế thừa kiến trúc SMALL/LARGE mode, tổng quát hóa cross-language + chuyên sâu cho Go/PHP/Python/TypeScript/.NET.

Public repo: https://github.com/tanviet12/vbsec License: MIT Platform: Google Antigravity. Phiên bản Claude Code spawn parallel sub-agents; phiên bản này dùng sequential chunking để giữ portability — chậm hơn ~3× nhưng output identical.

Invocation

Trong Antigravity Agent Manager chat box:

  • Auto-trigger: nói tự nhiên — "scan security cho repo này", "kiểm tra bảo mật", "audit security". Antigravity tự match description và load skill.
  • Explicit slash command: nếu workspace có file .agent/workflows/vbs-scan-security.md (xem README để biết cách tạo), gõ /vbs-scan-security để invoke.
Argument Scope Mô tả
(không args) Toàn repo Mặc định — quét toàn bộ repo
all Toàn repo Alias explicit
uncommitted / diff Uncommitted changes Staged + unstaged
staged Staged files only Pre-commit scan
commit within Xdays Recent commits Quét commit X ngày gần đây
commit id <sha> Specific commit Quét 1 commit
pr id <number> Pull request Quét PR diff (cần gh CLI)

Lựa chọn ngôn ngữ output: lang=vi / --vi (mặc định) hoặc lang=en / --en.

Ví dụ:

scan security uncommitted lang=en
/vbs-scan-security pr id 42
audit security commit within 7days

CRITICAL: Cách dùng skill này (cho LLM agent)

Các pattern bash/grep trong rule files là VÍ DỤ minh họa, KHÔNG phải lệnh chạy literal.

Nguyên tắc

  1. Lý luận, không pattern-match thuần — Hiểu intent bảo mật đằng sau mỗi check, không chỉ tìm chuỗi
  2. Dùng tool phù hợp — Antigravity built-in file/grep tools (read, grep, bash/shell), không gọi grep/find shell thô khi tool native có sẵn
  3. Đọc context đầy đủ — Khi gặp pattern, đọc hàm xung quanh để hiểu đây có thực sự là lỗ hổng không
  4. Phân loại trust level — Một query có format chuỗi chỉ nguy hiểm nếu data ghép vào là L1 (untrusted)

Read the full file on GitHub · 337 lines

Files

What ships with it

60 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 5d ago First seen · 337 lines · 75 tokens per session scan A e0c9cba9a96b

Subscribe to this mod's changes

vbs-scan-security is a skill published in the GitHub repository tanviet12/vbsec (265 stars, last pushed 3mo ago), licensed MIT. It adds 75 tokens to every session and 3,809 once invoked, about $0.0004 per session on Opus 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 2026-08-30.

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