What is Security Vulnerability Patterns?

A code-review guide for spotting common security problems, including SQL injection, cross-site scripting, command injection, and exposed passwords or API keys.

Use it when auditing code, looking for OWASP-style vulnerabilities, checking for hardcoded secrets, or investigating a known CVE.

It helps identify security issues that could let attackers misuse an application or access protected data.

Security Vulnerability Patterns — Skill by danielostrow/thePlug

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.

Any agent

npx skills add danielostrow/thePlug --skill security-patterns

Clone the repo

git clone --depth 1 https://github.com/danielostrow/thePlug

Made for: Claude Code.

Or install code-health, the plugin that ships this one along with the rest of its 3 skills, 6 commands, 4 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/danielostrow/theplug/security-patterns/github.svg)](https://agentmods.dev/skills/danielostrow/theplug/security-patterns)

Your own site

<a href="https://agentmods.dev/skills/danielostrow/theplug/security-patterns"><img src="https://agentmods.dev/badge/skills/danielostrow/theplug/security-patterns/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/danielostrow/theplug/security-patterns"><img src="https://agentmods.dev/badge/skills/danielostrow/theplug/security-patterns.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 70 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,073 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.

Origin unknown 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.

Model	Per session	Once invoked
Fable 5.1	$0.00070	$0.01073
Opus 5.5	$0.00028	$0.00429
Sonnet 5.5	$0.00014	$0.00215
Haiku 4.5	$0.00007	$0.00107

Measured 2mo ago against content hash e350598a80ef, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

Security Vulnerability Patterns scanned grade A with 1 finding 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 2mo 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.

Runs shell commandslowCapability

Expected in a hook, worth knowing in a rule or an instructions file.

child_process\.(exec|spawn)\s*\([^)]*\+

code-health/skills/security-patterns/SKILL.md · 122 lines

The source is not reproduced here

No licence file

Read it on GitHub

Files

What ships with it

3 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.

2mo ago First seen · 122 lines · 70 tokens per session scan A e350598a80ef

Subscribe to this mod's changes

Security Vulnerability Patterns is a skill published in the GitHub repository danielostrow/thePlug (2 stars, last pushed 10mo ago), with no licence file. It adds 70 tokens to every session and 1,073 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 1 finding (runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Code review Security

Security Vulnerability Patterns next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
Security Vulnerability Patternsdanielostrow/thePlug	Skill	2	10mo ago	none	A	70	Claude Code
autoreviewopenclaw/clawhub	Skill	9.5k	yesterday	MIT	A	17	Claude Code, Codex
agent-teams-simplify-and-hardenLeoYeAI/openclaw-master-skills	Skill	2.2k	6d ago	MIT	A	115	Claude Code, Codex
omh-code-reviewrlaope/oh-my-hermes	Skill	5.2k	yesterday	MIT	A	48	Claude Code, Codex
revdiff-planumputun/revdiff	Skill	945	yesterday	MIT	A	84	Claude Code
explore-unknownsdzhng/skills	Skill	1.4k	2d ago	MIT	A	162	Claude Code, Codex
re0-mergeLilMGenius/paperthin	Skill	1.4k	4d ago	MIT	A	70	Claude Code

Security Vulnerability Patterns

Getting it into your agent

Wrote this? Show the measurements

What it costs to keep this loaded

Grade A, and why

Runs shell commandslowCapability

The source is not reproduced here

No licence file

What ships with it

What this file has done since we first saw it

Security Vulnerability Patterns compared with skills from other repositories