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javis-os: Skill for Claude Code

.claude/skills/security-audit/SKILL.md

Security Audit is a skill for Claude Code from blogminhquy/javis-os. It costs 45 tokens per session (4,780 once invoked), scanned A, a copy of security-audit, MIT.

A source-code security auditing workflow that looks for vulnerabilities, verifies each finding separately, and reports evidence and fixes. It is for code the user owns or is allowed to inspect, not for probing live systems.

In plain words
What is it for?
It helps review repositories, APIs, and services for trust-boundary violations, reproduce confirmed issues safely, and document remediation steps.
Why use it?
It reduces false alarms by requiring evidence and independent checking before reporting a security problem.

Skill for Claude Code

Written for Claude Code: installed under .claude/. Also seen: mentions subagents; mentions Claude Code; mentions Codex.

This is blogminhquy/javis-os's own configuration. It tells Claude Code how to work on javis-os itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything javis-os configures →

not rated 633repo +214 today A scan 45 tokens copy · 92% MIT
View source ↗ blogminhquy/javis-os javisos.com
Reuse

Borrowing it

Nothing to install: this file belongs to blogminhquy/javis-os. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/blogminhquy/javis-os/main/.claude/skills/security-audit/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/blogminhquy/javis-os

Made for: Claude Code.

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 Security Audit

README.md
[![agentmods](https://agentmods.dev/badge/skills/blogminhquy/javis-os/security-audit/github.svg)](https://agentmods.dev/skills/blogminhquy/javis-os/security-audit)
Your own site
<a href="https://agentmods.dev/skills/blogminhquy/javis-os/security-audit"><img src="https://agentmods.dev/badge/skills/blogminhquy/javis-os/security-audit/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 Security Audit

Your own site · 80×15
<a href="https://agentmods.dev/skills/blogminhquy/javis-os/security-audit"><img src="https://agentmods.dev/badge/skills/blogminhquy/javis-os/security-audit.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 45 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,780 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 92% copy Near-identical to another mod 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 $0.00045 $0.04780
Opus 5.5 $0.00018 $0.01912
Sonnet 5.5 $0.00009 $0.00956
Haiku 4.5 $0.00005 $0.00478

Measured today against content hash 708970b763f6, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

Security Audit 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 today.

The scan reads SKILL.md. This mod also ships 4 executable files (validate-coverage-ledger.cjs, validate-coverage-ledger.test.cjs, validate-findings.cjs, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Origin

This is a copy

92% identical to security-audit — 54 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.claude/skills/security-audit/SKILL.md · 211 lines

How it starts

The opening of the file, as written. The whole thing — 211 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Khi nào dùng

  • Hỏi về bảo mật, xem nhanh một đoạn code hay một lỗi cụ thể: chỉ dùng phần liên quan (guidance mode), không tạo file.
  • "Audit bảo mật repo này", "pen-test code", "rà soát toàn bộ, xuất báo cáo": chạy đủ 6 giai đoạn (full audit mode).

Ghi chú khi chạy trong Javis

  • Skill do Cloudflare viết (giấy phép MIT, xem LICENSE.txt), thân dưới đây giữ nguyên bản gốc, chỉ đổi dấu gạch dài thành gạch ngắn.
  • "Task tool" là cơ chế tác tử con: Claude Code, Codex, Grok Build có Task thật để chạy song song. Engine API không có Task, nên chạy tuần tự từng vai, vẫn giữ nguyên tắc người kiểm chứng KHÔNG phải người tìm ra lỗi (mở lượt mới, không mang ghi chú của hunter).
  • Thư mục báo cáo phải nằm NGOÀI repo đang audit. Trong Javis mặc định đặt ở exports/security-audit/<repo>/run-<N> của brain, trừ khi người dùng chỉ chỗ khác.
  • Hai file kiểm validate-*.cjs cần Node (image Docker của Javis đã có sẵn).
  • Chỉ audit mã nguồn người dùng sở hữu hoặc được phép kiểm. Không dò hệ thống đang chạy thật, không chạy code của repo ngoài sandbox.

Security Audit

Find vulnerabilities that violate a real trust boundary, then give owners the source evidence, safe reproduction, priority, and smallest effective fix. This is a defensive, source-first workflow. A candidate without a concrete affected principal, resource, or security outcome is not a confirmed finding.

Operating modes

This skill is guidance by default. Loading it does not authorize the complete audit workflow or file creation.

  • Guidance mode: For security questions, focused reviews, methodology, triage, or investigation of specific findings, use only the relevant parts of this skill. Do not automatically run all six phases, create an output directory, or write audit artifacts. You may launch focused agents when useful; they return results to the current task.
  • Full audit mode: Use the complete workflow when the user explicitly asks to audit or pen-test a codebase, asks for a full, comprehensive, or end-to-end security review, or requests report artifacts. Run all six phases and write the files defined below.

Read the full file on GitHub · 211 lines

Files

What ships with it

20 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. today First seen · 211 lines · 45 tokens per session scan A 708970b763f6

Subscribe to this mod's changes

Security Audit is a skill published in the GitHub repository blogminhquy/javis-os (633 stars, last pushed today), licensed MIT. It adds 45 tokens to every session and 4,780 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 92% identical to security-audit, differing in 54 lines, and is treated as a copy.

Securityagent-operationsagent-optimizationagent-orchestrationagent-orchestratoragent-osai-agent
Related

Security Audit compared with skills from other repositories

Security Audit next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
Security Auditblogminhquy/javis-osSkill633todayMITA45Claude Code
beevibe-team-mesh-negotiationbeevibe-ai/beevibeSkill341yesterdayApache-2.0A112Claude Code, Codex
beevibe-verify-prbeevibe-ai/beevibeSkill341yesterdayApache-2.0A172Claude Code, Codex
beevibe-pre-task-setupbeevibe-ai/beevibeSkill341yesterdayApache-2.0A198Claude Code, Codex
beevibe-use-repobeevibe-ai/beevibeSkill341yesterdayApache-2.0A50Claude Code, Codex
beevibe-discover-repobeevibe-ai/beevibeSkill341yesterdayApache-2.0A51Claude Code, Codex
gitnexus-cliqualixar/qualixar-osSkill461mo agononeA59Claude Code