Agent skill

Security Express

by IgorWarzocha in IgorWarzocha/Opencode-Workflows

Review Express.js security audit patterns for middleware and routes.

No licenceAuto-check passedSecurity

Install Security Express

skills CLI
$ npx skills add IgorWarzocha/Opencode-Workflows --skill security-express -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install IgorWarzocha/Opencode-Workflows security-express --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/IgorWarzocha/Opencode-Workflows.git skills-src && mkdir -p .claude/skills && cp -r skills-src/agents/security-reviewer/.opencode/skill/security-express .claude/skills/security-express && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
security-express
GitHub stars
122
Token cost
~1.8k tokens
SKILL.md length
137 words
Files
2 (incl. scripts)
Skills in repo
37
Repo updated
First seen
Licence
None found

At a glance

Review Express.js security audit patterns for middleware and routes.

  • Auditing Helmet.js
  • SKILL.md covers Essential Security Middleware, Body Parser Limits, Auth Middleware Patterns and Common Vulnerabilities, plus 3 more sections
  • Runs Shell scripts from its folder; calls rg; needs SESSION_SECRET
  • Body-parser limits

What it does

Security Express is an agent skill from IgorWarzocha/Opencode-Workflows. Review Express.js security audit patterns for middleware and routes. Use for auditing Helmet.js, CORS, body-parser limits, and auth middleware. Use proactively when reviewing Express.js apps. Examples: - user: "Secure my Express app" → add Helmet.js and disable x-powered-by - user: "Check Express CORS config" → verify origin allowlists and credentials - user: "Review Express auth middleware" → check route order and coverage - user: "Scan for Express path traversal" → verify path normalization and validation -…

Its SKILL.md is about 1.8k tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including scripts (for example `scripts/scan.sh`).

It sits in Security, covering Security review and Database schema design. It works with Express. The repository describes itself as: An ever evolving repository of Opencode workflow examples that might enhance your experience with it. I only left the stuff that actually works. YMMV.

When your agent uses it

  • Auditing Helmet.js
  • Body-parser limits
  • Auth middleware

Example prompts

  • “Secure my Express app”
  • “Check Express CORS config”
  • “Review Express auth middleware”
  • “/security-express”

Requirements

  • A Bash shell
  • A credential in SESSION_SECRET

What it can do on your machine

Read from SKILL.md and the folder at commit 6444ec4. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Ships 1 file in scripts/ (Shell), which the agent can run.

    Shell commands in SKILL.md call:

    • rg

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names these keys or tokens, usually read from environment variables:

    • SESSION_SECRET

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Security Express loads about 1.8k tokens when it runs. Until then it costs about 153 tokens; SKILL.md has 137 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~153
When it runs · the whole SKILL.md, loaded when a task matches
~1.8k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.

SKILL.md

Without a licence we can't republish the file, so here is its outline and opening line. It has 137 words (~1,768 tokens).

“Security audit patterns for Express.js applications covering essential security middleware, CORS configuration, auth patterns, and common vulnerabilities.”

— opening of SKILL.md by IgorWarzocha
name
security-express

Read the full SKILL.md on GitHub

Files

SKILL.md and 1 other file (scripts) in agents/security-reviewer/.opencode/skill/security-express of IgorWarzocha/Opencode-Workflows.

  • SKILL.md
  • scripts/scan.sh

Open the folder on GitHubat commit 6444ec4

Compare with similar skills

Security Express next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Security Express compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Security Express this skillIgorWarzocha/Opencode-Workflows122—~1.8kAutomated safety check: PassNone
Vulnerability CSV Reportingbenchflow-ai/skillsbench1.8k—~3kAutomated safety check: PassApache-2.0
Build DBjar-analyzer/jar-analyzer-claude140—~898Automated safety check: PassNone
Deepsec Documentation Guidevercel-labs/deepsec8.1k—~956Automated safety check: PassApache-2.0
Kubernetes Network Security Auditkubeshark/kubeshark12k—~7.3kAutomated safety check: NotesApache-2.0
Native Dependency Updatemono/SkiaSharp5.6k—~4.1kAutomated safety check: PassMIT

Similar skills

  • Vulnerability CSV Reporting

    benchflow-ai/skillsbench

    Generate structured CSV security audit reports from vulnerability data with proper filtering and formatting.

    1.8k GitHub stars~3k tokensUpdated 2 mo ago
    Documents & OfficeAuto-check passed
  • Build DB

    jar-analyzer/jar-analyzer-claude

    使用 jar-analyzer-engine 从 JAR/WAR/Class 文件构建 SQLite 分析数据库。这是进行 Java 代码安全审计、方法调用分析的第一步。

    140 GitHub stars~898 tokensUpdated 6 mo ago
    SecurityAuto-check passed
  • Deepsec Documentation Guide

    vercel-labs/deepsec

    Official

    Points the agent at deepsec's own docs to answer questions about initializing, configuring, resuming, scanning with and extending the vulnerability scanner.

    8.1k GitHub stars~956 tokensUpdated 8 days ago
    SecurityAuto-check passed
  • Hunts for compromised workloads and malicious traffic in a Kubernetes cluster by sweeping network data through Kubeshark MCP, mapped to MITRE ATT&CK.

    12k GitHub stars~7.3k tokensUpdated 6 days ago
    SecurityAuto-check: notes
  • Update native dependencies (libpng, libexpat, zlib, libwebp, harfbuzz, freetype, libjpeg-turbo, etc.) in SkiaSharp's Skia fork.

    5.6k GitHub stars~4.1k tokensUpdated today
    SecurityAuto-check passed
  • Semgrep Security Scan

    trailofbits/skills

    Official

    Detects languages, proposes rulesets for approval, then runs the approved Semgrep scan across a codebase and merges the output into one SARIF file.

    7.4k GitHub stars~3.7k tokensUpdated 5 days ago
    SecurityAuto-check: notes

More from IgorWarzocha/Opencode-Workflows

All 37 skills in this repo
  • Create Opencode Plugin

    IgorWarzocha/Opencode-Workflows

    Create OpenCode plugins using the @opencode-ai/plugin SDK. An agent skill from IgorWarzocha/Opencode-Workflows.

    122 GitHub stars~2.4k tokensUpdated 8 mo ago
    Auto-check passed
  • Plugin Installer

    IgorWarzocha/Opencode-Workflows

    Find, install, and configure OpenCode plugins from the catalog or community.

    122 GitHub stars~1.3k tokensUpdated 8 mo ago
    Auto-check passed
  • Skill Creator

    IgorWarzocha/Opencode-Workflows

    Guide for creating effective opencode skills. An agent skill from IgorWarzocha/Opencode-Workflows.

    122 GitHub stars~2.8k tokensUpdated 8 mo ago
    Auto-check passed
  • Security AI Keys

    IgorWarzocha/Opencode-Workflows

    Review AI API key leakage patterns and redaction strategies.

    122 GitHub stars~793 tokensUpdated 8 mo ago
    Auto-check: notes
  • Security Convex

    IgorWarzocha/Opencode-Workflows

    Review Convex security audit patterns for authentication and authorization.

    122 GitHub stars~3.1k tokensUpdated 8 mo ago
    Auto-check passed
  • Security Django

    IgorWarzocha/Opencode-Workflows

    Review Django security audit patterns for settings and middleware.

    122 GitHub stars~1.6k tokensUpdated 8 mo ago
    Auto-check: notes

Works with

Questions about Security Express

What does Security Express do?

Review Express.js security audit patterns for middleware and routes. Security Express is an agent skill from IgorWarzocha/Opencode-Workflows.js security audit patterns for middleware and routes.

When should I use Security Express?

Security Express fits situations like: auditing Helmet.js; body-parser limits; auth middleware.

How do I install Security Express in Claude Code?

Run `npx skills add IgorWarzocha/Opencode-Workflows --skill security-express -a claude-code`. Or copy the skill folder (agents/security-reviewer/.opencode/skill/security-express in IgorWarzocha/Opencode-Workflows) into .claude/skills/security-express in your project. Claude Code loads it when a task matches its description.

How do I install Security Express in Codex?

Run `npx skills add IgorWarzocha/Opencode-Workflows --skill security-express -a codex`. Or copy the skill folder (agents/security-reviewer/.opencode/skill/security-express in IgorWarzocha/Opencode-Workflows) into .agents/skills/security-express in your project. Codex loads it when a task matches its description.

Can I use Security Express in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add IgorWarzocha/Opencode-Workflows --skill security-express -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/security-express, .gemini/skills/security-express, .github/skills/security-express and .opencode/skills/security-express in your project.

What does Security Express need to run?

Going by SKILL.md and its folder, Security Express needs a shell for the scripts in its folder, the command-line tools its instructions call (rg) and credentials named SESSION_SECRET. Our summary lists: A Bash shell; A credential in SESSION_SECRET.

Does Security Express access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Security Express safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.

What licence does Security Express use?

No licence was found for Security Express or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.

How many tokens does Security Express use?

About 1.8k tokens (SKILL.md is roughly 7.1k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Security Express?

Skills that share tags, products or a category with Security Express: Vulnerability CSV Reporting (benchflow-ai/skillsbench, 1.8k stars), Build DB (jar-analyzer/jar-analyzer-claude, 140 stars), Deepsec Documentation Guide (vercel-labs/deepsec, 8.1k stars) and Kubernetes Network Security Audit (kubeshark/kubeshark, 12k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Security Express?

IgorWarzocha (a GitHub user) maintains it in IgorWarzocha/Opencode-Workflows, which has 122 GitHub stars. The repository holds 37 skills in this directory. The repository was last updated on February 4, 2026.

Source: IgorWarzocha/Opencode-Workflows on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.