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Agent skill

Finding Security Misconfigurations

by jeremylongshore in jeremylongshore/tons-of-skills-marketplace

Configure identify security misconfigurations in infrastructure-as-code, application settings, and system configurations.

MITAuto-check passedDevOps & Cloud

Install Finding Security Misconfigurations

skills CLI
$ npx skills add jeremylongshore/tons-of-skills-marketplace --skill finding-security-misconfigurations -a claude-code

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

GitHub CLI
$ gh skill install jeremylongshore/tons-of-skills-marketplace finding-security-misconfigurations --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/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/.curated/finding-security-misconfigurations .claude/skills/finding-security-misconfigurations && 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
finding-security-misconfigurations
GitHub stars
2.8k
Token cost
~1.5k tokens
SKILL.md length
566 words
Files
7 (incl. scripts, references, assets)
Skills in repo
3,342
Repo updated
First seen
Licence
MIT

At a glance

Configure identify security misconfigurations in infrastructure-as-code, application settings, and system configurations.

  • Works in 10 steps: Discover all configuration files by… → Cloud storage: check for publicly… → Network security: flag security groups… → …
  • You need to audit Terraform/CloudFormation templates
  • SKILL.md covers Overview, Prerequisites, Instructions and Output, plus 3 more sections
  • Calls trivy

What it does

Finding Security Misconfigurations is an agent skill from jeremylongshore/tons-of-skills-marketplace. Configure identify security misconfigurations in infrastructure-as-code, application settings, and system configurations. Use when you need to audit Terraform/CloudFormation templates, check application config files, validate system security settings, or ensure compliance with security best practices. Trigger with phrases like "find security misconfigurations", "audit infrastructure security", "check config security", or "scan for misconfigured settings".

Its SKILL.md is about 1.5k tokens, which your agent loads only when the skill is triggered. The skill folder holds 9 other files, including scripts, reference files and assets (for example `assets/README.md`, `references/README.md` and `references/errors.md`). Compatibility notes: Designed for Claude Code

It sits in DevOps & Cloud, covering Infrastructure as code. It works with AWS CloudFormation, Terraform and Docker. The repository describes itself as: Model-agnostic agent-skills platform with a harness-free canonical layer, verified adapters, and the ccpi package manager. Explore at tonsofskills.com. The licence is MIT.

When your agent uses it

  • You need to audit Terraform/CloudFormation templates
  • Check application config files
  • Validate system security settings
  • Ensure compliance with security best practices

Example prompts

  • “find security misconfigurations”
  • “audit infrastructure security”
  • “check config security”
  • “/finding-security-misconfigurations”

Requirements

  • Docker
  • Compatibility (from SKILL.md): Designed for Claude Code
  • Pre-approved tools (allowed-tools): Read, Write, Edit, Grep, Glob, Bash(config-scan:*), Bash(iac-check:*)

Workflow steps

10 steps, taken from the first numbered list in SKILL.md.

  1. Discover all configuration files by scanning ${CLAUDE_SKILL_DIR}/ for IaC templates (.tf, .yaml, .json, .template), application configs…
  2. Cloud storage: check for publicly accessible S3 buckets, unencrypted storage accounts, missing versioning, and overly permissive bucket…
  3. Network security: flag security groups allowing 0.0.0.0/0 ingress on sensitive ports (22, 3389, 3306, 5432, 27017), missing VPC flow logs…
  4. IAM and access: detect wildcard (*) permissions in IAM policies, service accounts with admin privileges, missing MFA enforcement, and…
  5. Compute resources: identify EC2/VM instances with unnecessary public IPs, unencrypted volumes, missing IMDSv2 enforcement, and outdated…
  6. Database security: flag publicly accessible RDS/Cloud SQL instances, missing encryption at rest, disabled automated backups, default ports…
  7. Application config: detect debug mode enabled in production, default credentials, CORS wildcard (*), missing CSRF protection, disabled…
  8. Container security: check for containers running as root, missing resource limits, privileged: true, writable root filesystems, and images…
  9. Classify each finding: Critical (immediate exploitation risk), High (significant security impact), Medium (configuration weakness), Low…
  10. Generate findings report at ${CLAUDE_SKILL_DIR}/security-findings/misconfig-YYYYMMDD.md with per-finding severity, CIS/CWE mapping…

What it can do on your machine

Read from SKILL.md and the folder at commit cfae287. 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:

    • Read
    • Write
    • Edit
    • Grep
    • Glob
    • Bash(config-scan:*)
    • Bash(iac-check:*)

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

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

    Shell commands in SKILL.md call:

    • trivy

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

  • Network

    Links to these hosts (documentation or services it may open):

    • cisecurity.org
    • owasp.org
    • github.com
    • checkov.io
    • cwe.mitre.org
    • intentsolutions.io

    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.

  • Compatibility

    Designed for Claude Code

    From compatibility in the SKILL.md frontmatter.

Context cost

Finding Security Misconfigurations loads about 1.5k tokens when it runs, and up to ~2.8k if it reads all its reference files. Until then it costs about 124 tokens; SKILL.md has 566 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~124
When it runs · the whole SKILL.md, loaded when a task matches
~1.5k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~2.8k

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

The full file from jeremylongshore/tons-of-skills-marketplace at commit cfae287, republished under its MIT licence (© jeremylongshore). 566 words, ~1,530 tokens.

Download SKILL.mdSave it as .claude/skills/finding-security-misconfigurations/SKILL.md (or your agent's skills folder). This skill also uses 6 other files; get the full folder from GitHub.
name
finding-security-misconfigurations
description
Configure identify security misconfigurations in infrastructure-as-code, application settings, and system configurations. Use when you need to audit Terraform/CloudFormation templates, check application config files, validate system security settings, or ensure compliance with security best practices. Trigger with phrases like "find security misconfigurations", "audit infrastructure security", "check config security", or "scan for misconfigured settings".
allowed-tools
Read, Write, Edit, Grep, Glob, Bash(config-scan:*), Bash(iac-check:*)
compatibility
Designed for Claude Code
version
1.29.0
author
Jeremy Longshore <jeremy@intentsolutions.io>
license
MIT
tags
security, terraform, compliance, audit

Finding Security Misconfigurations

Overview

Scan infrastructure-as-code templates, application configuration files, and system settings to detect security misconfigurations mapped to OWASP A05:2021 (Security Misconfiguration) and CIS Benchmarks. Cover cloud resources (AWS, GCP, Azure), container orchestration (Kubernetes, Docker), web servers (Nginx, Apache), and application frameworks.

Prerequisites

  • Infrastructure-as-code files accessible in ${CLAUDE_SKILL_DIR}/ (Terraform .tf, CloudFormation .yaml/.json, Ansible playbooks, Kubernetes manifests)
  • Application configuration files available (application.yml, config.json, .env.example, web.config)
  • Container definitions (Dockerfile, docker-compose.yml, Helm charts)
  • Web server configs (nginx.conf, httpd.conf, .htaccess) if applicable
  • Write permissions for findings output in ${CLAUDE_SKILL_DIR}/security-findings/
  • Optional: tfsec, checkov, or trivy config installed for automated pre-scanning

Instructions

  1. Discover all configuration files by scanning ${CLAUDE_SKILL_DIR}/ for IaC templates (.tf, .yaml, .json, .template), application configs, container definitions, and web server configs.
  2. Cloud storage: check for publicly accessible S3 buckets, unencrypted storage accounts, missing versioning, and overly permissive bucket policies (CIS AWS 2.1.1, 2.1.2).
  3. Network security: flag security groups allowing 0.0.0.0/0 ingress on sensitive ports (22, 3389, 3306, 5432, 27017), missing VPC flow logs, and absent network segmentation.
  4. IAM and access: detect wildcard (*) permissions in IAM policies, service accounts with admin privileges, missing MFA enforcement, and hardcoded credentials in source (CWE-798).
  5. Compute resources: identify EC2/VM instances with unnecessary public IPs, unencrypted volumes, missing IMDSv2 enforcement, and outdated base images.
  6. Database security: flag publicly accessible RDS/Cloud SQL instances, missing encryption at rest, disabled automated backups, default ports exposed without IP restrictions.
  7. Application config: detect debug mode enabled in production, default credentials, CORS wildcard (*), missing CSRF protection, disabled authentication endpoints, and API keys in config files.
  8. Container security: check for containers running as root, missing resource limits, privileged: true, writable root filesystems, and images without pinned digests.
  9. Classify each finding: Critical (immediate exploitation risk), High (significant security impact), Medium (configuration weakness), Low (best practice violation).
  10. Generate findings report at ${CLAUDE_SKILL_DIR}/security-findings/misconfig-YYYYMMDD.md with per-finding severity, CIS/CWE mapping, affected file and line, remediation code, and verification command.

See ${CLAUDE_SKILL_DIR}/references/implementation.md for the full six-section implementation guide covering IaC, application, and system checks.

Show full SKILL.md (233 more words)Show less

Output

  • Findings Report: ${CLAUDE_SKILL_DIR}/security-findings/misconfig-YYYYMMDD.md with all misconfigurations categorized by severity
  • Remediation Plan: minimal-change fixes with before/after config snippets and verification commands
  • Compliance Mapping: each finding linked to CIS Benchmark, OWASP, or CWE reference
  • Summary Dashboard: finding counts by severity and category

Error Handling

ErrorCauseSolution
Syntax error in ${CLAUDE_SKILL_DIR}/terraform/main.tfMalformed HCL, YAML, or JSONValidate file syntax first; skip malformed files and note parse errors in report
Cannot determine cloud provider from configurationMissing provider blocks or ambiguous file structureLook for provider blocks and file naming conventions; fall back to generic security checks
Cannot read encrypted configurationSOPS-encrypted or binary config filesRequest decrypted version or exported config; document inability to audit
Too many config files (500+)Large monorepo or multi-service projectPrioritize by file type: IaC first, then app configs, then system configs
Flagged configuration is intentional (dev environment)False positive in non-production contextSupport environment-specific exception rules; allow .securityignore overrides

Examples

  • "Scan Terraform files in ${CLAUDE_SKILL_DIR}/ for overly permissive security groups and IAM wildcard policies."
  • "Review Kubernetes manifests for insecure defaults: privileged containers, missing resource limits, and root execution."
  • "Audit the Nginx and application configs for debug mode, information disclosure, and missing security headers."

Resources

© jeremylongshore, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 6 other files (scripts, references, assets) in skills/.curated/finding-security-misconfigurations of jeremylongshore/tons-of-skills-marketplace.

  • SKILL.md
  • assets/README.md
  • references/README.md
  • references/errors.md
  • references/examples.md
  • references/implementation.md
  • scripts/README.md

Open the folder on GitHubat commit cfae287

Compare with similar skills

Finding Security Misconfigurations 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.

Finding Security Misconfigurations compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Finding Security Misconfigurations this skilljeremylongshore/tons-of-skills-marketplace2.8k—~1.5kAutomated safety check: PassMIT
Iac CheckovAgentSecOps/SecOpsAgentKit2201 repos~4.6kAutomated safety check: PassCustom licence
Security Analyzeraiskillstore/marketplace433—~1.2kAutomated safety check: NotesNone
Senior DevOps Toolkitmaslennikov-ig/claude-code-orchestrator-kit2606 repos~1.1kAutomated safety check: NotesCustom licence
AWS Cloud Advisortech-leads-club/agent-skills7k—~2.1kAutomated safety check: PassCC-BY-4.0
Audit Infrastructure As Codecyberful/cyberful135—~649Automated safety check: PassAGPL-3.0

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Works with

Categories

Questions about Finding Security Misconfigurations

What does Finding Security Misconfigurations do?

Configure identify security misconfigurations in infrastructure-as-code, application settings, and system configurations. Finding Security Misconfigurations is an agent skill from jeremylongshore/tons-of-skills-marketplace. Configure identify security misconfigurations in infrastructure-as-code, application settings, and system configurations.

When should I use Finding Security Misconfigurations?

Finding Security Misconfigurations fits situations like: you need to audit Terraform/CloudFormation templates; check application config files; validate system security settings; ensure compliance with security best practices.

How do I install Finding Security Misconfigurations in Claude Code?

Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill finding-security-misconfigurations -a claude-code`. Or copy the skill folder (skills/.curated/finding-security-misconfigurations in jeremylongshore/tons-of-skills-marketplace) into .claude/skills/finding-security-misconfigurations in your project. Claude Code loads it when a task matches its description.

How do I install Finding Security Misconfigurations in Codex?

Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill finding-security-misconfigurations -a codex`. Or copy the skill folder (skills/.curated/finding-security-misconfigurations in jeremylongshore/tons-of-skills-marketplace) into .agents/skills/finding-security-misconfigurations in your project. Codex loads it when a task matches its description.

Can I use Finding Security Misconfigurations 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 jeremylongshore/tons-of-skills-marketplace --skill finding-security-misconfigurations -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/finding-security-misconfigurations, .gemini/skills/finding-security-misconfigurations, .github/skills/finding-security-misconfigurations and .opencode/skills/finding-security-misconfigurations in your project.

What does Finding Security Misconfigurations need to run?

Going by SKILL.md and its folder, Finding Security Misconfigurations needs the command-line tools its instructions call (trivy). Our summary lists: Docker. Its frontmatter pre-approves these tools: Read, Write, Edit, Grep, Glob, Bash(config-scan:*), Bash(iac-check:*). Compatibility (from SKILL.md): Designed for Claude Code.

Does Finding Security Misconfigurations access the network?

SKILL.md names 6 domains. As links in the text: cisecurity.org, owasp.org, github.com, checkov.io, cwe.mitre.org and intentsolutions.io. This is read from the text; nothing was executed.

Is Finding Security Misconfigurations 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 Finding Security Misconfigurations use?

Finding Security Misconfigurations is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Finding Security Misconfigurations use?

About 1.5k tokens (SKILL.md is roughly 6.1k 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 1.3k tokens, read only when the agent opens those files.

What are the alternatives to Finding Security Misconfigurations?

Skills that share tags, products or a category with Finding Security Misconfigurations: Iac Checkov (AgentSecOps/SecOpsAgentKit, 220 stars), Security Analyzer (aiskillstore/marketplace, 433 stars), Senior DevOps Toolkit (maslennikov-ig/claude-code-orchestrator-kit, 260 stars) and AWS Cloud Advisor (tech-leads-club/agent-skills, 7k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Finding Security Misconfigurations?

jeremylongshore (a GitHub user) maintains it in jeremylongshore/tons-of-skills-marketplace, which has 2,827 GitHub stars. The repository holds 3,342 skills in this directory. The repository was last updated on October 10, 2026.

Source: jeremylongshore/tons-of-skills-marketplace on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.