Code Security
semgrep/skills
Security guidelines for writing secure code. An agent skill from semgrep/skills.
Comprehensive security vulnerability analysis for codebases and infrastructure.
Install Security Analyzer
$ npx skills add aiskillstore/marketplace --skill security-analyzer -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install aiskillstore/marketplace security-analyzer --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/cornjebus/security-analyzer .claude/skills/security-analyzer && rm -rf skills-srcUse ~/.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/
Install the "security-analyzer" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/cornjebus/security-analyzer into .claude/skills/security-analyzer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "security-analyzer", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/aiskillstore/marketplace/tree/main/skills/cornjebus/security-analyzerType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add aiskillstore/marketplace --skill security-analyzer -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install aiskillstore/marketplace security-analyzer --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/cornjebus/security-analyzer .agents/skills/security-analyzer && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "security-analyzer" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/cornjebus/security-analyzer into .agents/skills/security-analyzer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "security-analyzer", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add aiskillstore/marketplace --skill security-analyzer -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install aiskillstore/marketplace security-analyzer --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/cornjebus/security-analyzer .cursor/skills/security-analyzer && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "security-analyzer" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/cornjebus/security-analyzer into .cursor/skills/security-analyzer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "security-analyzer", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/aiskillstore/marketplace.git --path skills/cornjebus/security-analyzer--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add aiskillstore/marketplace --skill security-analyzer -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install aiskillstore/marketplace security-analyzer --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/cornjebus/security-analyzer .gemini/skills/security-analyzer && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "security-analyzer" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/cornjebus/security-analyzer into .gemini/skills/security-analyzer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "security-analyzer", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install aiskillstore/marketplace security-analyzerInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add aiskillstore/marketplace --skill security-analyzer -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/cornjebus/security-analyzer .github/skills/security-analyzer && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "security-analyzer" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/cornjebus/security-analyzer into .github/skills/security-analyzer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "security-analyzer", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add aiskillstore/marketplace --skill security-analyzer -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install aiskillstore/marketplace security-analyzer --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/cornjebus/security-analyzer .opencode/skills/security-analyzer && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "security-analyzer" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/cornjebus/security-analyzer into .opencode/skills/security-analyzer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "security-analyzer", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
security-analyzer- GitHub stars
- 430
- Token cost
- ~1.2k tokens
- SKILL.md length
- 335 words
- Files
- 6 (incl. scripts, references)
- Skills in repo
- 1,108
- Repo updated
- First seen
- Licence
- None found
At a glance
Comprehensive security vulnerability analysis for codebases and infrastructure.
- Works in 5 steps: Environment Discovery → Vulnerability Intelligence → Risk Scoring → …
- Users mention security scan
- SKILL.md covers Quick Start, Workflow, TDD Pattern and Fix Types by Finding, plus 1 more section
- Runs Python scripts from its folder; calls python and npm
What it does
Security Analyzer is an agent skill from aiskillstore/marketplace. Comprehensive security vulnerability analysis for codebases and infrastructure. Scans dependencies (npm, pip, gem, go, cargo), containers (Docker, Kubernetes), cloud IaC (Terraform, CloudFormation), and detects secrets exposure. Fetches live CVE data from OSV.dev, calculates risk scores, and generates phased remediation plans with TDD validation tests. Use when users mention security scan, vulnerability, CVE, exploit, security audit, penetration test, OWASP, hardening, dependency audit, container security, or…
Its SKILL.md is about 1.2k tokens, which your agent loads only when the skill is triggered. The skill folder holds 7 other files, including scripts and reference files (for example `references/report-templates.md`, `scripts/discover_env.py` and `scripts/fetch_vulns.py`).
It sits in Security, covering Infrastructure as code, Security review and Vulnerability scanning. It works with Docker, AWS CloudFormation, Kubernetes and npm. The repository describes itself as: Security-audited skills for Claude, Codex & Claude Code. One-click install, quality verified.
When your agent uses it
- Users mention security scan
- Penetration test
- Dependency audit
- Container security
Example prompts
- “/security-analyzer”
Requirements
- Python 3
- Node.js
- Docker
- Pre-approved tools (allowed-tools): Bash, Read, Write, Edit, Glob, Grep, WebFetch, WebSearch
Workflow steps
5 steps, taken from the step headings in SKILL.md.
- Environment Discovery
- Vulnerability Intelligence
- Risk Scoring
- Phased Remediation
- Reports
What it can do on your machine
Read from SKILL.md and the folder at commit ad8daf7. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves these tools, so the agent can use them without asking each time:
BashReadWriteEditGlobGrepWebFetchWebSearch
From allowed-tools in the SKILL.md frontmatter.
Runs code
Ships 3 files in scripts/ (Python), which the agent can run.
Shell commands in SKILL.md call:
pythonnpm
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use npm, which can reach the network depending on how they are called.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Security Analyzer loads about 1.2k tokens when it runs, and up to ~2.2k if it reads all its reference files. Until then it costs about 142 tokens; SKILL.md has 335 words of instructions outside code blocks.
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: notes
The automated check noted patterns worth knowing about, such as sudo or a known installer.
- NoteMentions a .env fileSKILL.md:29
- **Secrets**: `.env*` files (flag exposure risk, never log values) - NotePre-approves every shell command (allowed-tools: Bash)SKILL.md
allowed-tools: Bash, Read, Write, Edit, Glob, Grep, WebFetch, WebSearch
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 335 words (~1,170 tokens).
“Analyze environments for vulnerabilities, fetch current CVE/exploit data, and generate phased remediation plans with TDD validation.”
- name
- security-analyzer
- allowed-tools
- Bash, Read, Write, Edit, Glob, Grep, WebFetch, WebSearch
Files
SKILL.md and 5 other files (scripts, references) in skills/cornjebus/security-analyzer of aiskillstore/marketplace.
- SKILL.md
- references/report-templates.md
- scripts/discover_env.py
- scripts/fetch_vulns.py
- scripts/generate_report.py
- skill-report.json
Open the folder on GitHubat commit ad8daf7
Compare with similar skills
Security Analyzer 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Security Analyzer this skillaiskillstore/marketplace | 430 | — | ~1.2k | Automated safety check: Notes | None | |
| Code Securitysemgrep/skills | 322 | — | ~1.2k | Automated safety check: Pass | Custom licence | |
| Sca TrivyAgentSecOps/SecOpsAgentKit | 220 | 2 repos | ~3.7k | Automated safety check: Pass | Custom licence | |
| Container Security Hardeningsickn33/agentic-awesome-skills | 47k | 1 repos | ~1k | Automated safety check: Notes | MIT | |
| Config Scanjwynia/agent-skills | 166 | — | ~2k | Automated safety check: Notes | MIT | |
| Agent Bom Scan InfraLeoYeAI/openclaw-master-skills | 2.2k | — | ~1.5k | Automated safety check: Pass | Apache-2.0 |
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Related
Categories
Questions about Security Analyzer
What does Security Analyzer do?
Comprehensive security vulnerability analysis for codebases and infrastructure. Security Analyzer is an agent skill from aiskillstore/marketplace. Comprehensive security vulnerability analysis for codebases and infrastructure.
When should I use Security Analyzer?
Security Analyzer fits situations like: users mention security scan; penetration test; dependency audit; container security.
How do I install Security Analyzer in Claude Code?
Run `npx skills add aiskillstore/marketplace --skill security-analyzer -a claude-code`. Or copy the skill folder (skills/cornjebus/security-analyzer in aiskillstore/marketplace) into .claude/skills/security-analyzer in your project. Claude Code loads it when a task matches its description.
How do I install Security Analyzer in Codex?
Run `npx skills add aiskillstore/marketplace --skill security-analyzer -a codex`. Or copy the skill folder (skills/cornjebus/security-analyzer in aiskillstore/marketplace) into .agents/skills/security-analyzer in your project. Codex loads it when a task matches its description.
Can I use Security Analyzer 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 aiskillstore/marketplace --skill security-analyzer -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-analyzer, .gemini/skills/security-analyzer, .github/skills/security-analyzer and .opencode/skills/security-analyzer in your project.
What does Security Analyzer need to run?
Going by SKILL.md and its folder, Security Analyzer needs Python for the scripts in its folder and the command-line tools its instructions call (python and npm). Our summary lists: Python 3; Node.js; Docker. Its frontmatter pre-approves these tools: Bash, Read, Write, Edit, Glob, Grep, WebFetch, WebSearch.
Does Security Analyzer access the network?
SKILL.md contains no URLs. Its commands use npm, which can reach the network depending on how they are called. This is read from the text; nothing was executed.
Is Security Analyzer safe to install?
Our automated static check of SKILL.md found notes only (mentions a .env file; pre-approves every shell command (allowed-tools: bash)), nothing it rates as a warning. 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 Analyzer use?
No licence was found for Security Analyzer or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Security Analyzer use?
About 1.2k tokens (SKILL.md is roughly 4.7k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 1.1k tokens, read only when the agent opens those files.
What are the alternatives to Security Analyzer?
Skills that share tags, products or a category with Security Analyzer: Code Security (semgrep/skills, 322 stars), Sca Trivy (AgentSecOps/SecOpsAgentKit, 220 stars), Container Security Hardening (sickn33/agentic-awesome-skills, 47k stars) and Config Scan (jwynia/agent-skills, 166 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Security Analyzer?
aiskillstore (a GitHub organization) maintains it in aiskillstore/marketplace, which has 430 GitHub stars. The repository holds 1,108 skills in this directory. The repository was last updated on October 7, 2026.
Source: aiskillstore/marketplace on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.