claude-security-settings

claude-security-settings is a skill for Claude Code, Codex from laurigates/claude-plugins. It costs 36 tokens per session (2,790 once invoked), scanned B, original, MIT.

A guide for configuring Claude Code's project permissions and security settings, including allowed commands and protections for shell operations.

In plain words
What is it for?
Use it to audit or harden a project's .claude/settings.json file and review permission rules and shell-operator protections.
Why use it?
It helps prevent unsafe tool use and keeps permissions limited to what a project allows.

Skill for Claude CodeCodex

Part of the configure-plugin plugin — 48 skills shipped together

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.

agentmods
npx agentmods add skills/laurigates/claude-plugins/claude-security-settings
Any agent
npx skills add laurigates/claude-plugins --skill claude-security-settings
Clone the repo
git clone --depth 1 https://github.com/laurigates/claude-plugins

Made for: Claude Code, Codex.

Or install configure-plugin, the plugin that ships this one along with the rest of its 48 skills.

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 claude-security-settings

README.md
[![agentmods](https://agentmods.dev/badge/skills/laurigates/claude-plugins/claude-security-settings.svg)](https://agentmods.dev/skills/laurigates/claude-plugins/claude-security-settings)
Your own site
<a href="https://agentmods.dev/skills/laurigates/claude-plugins/claude-security-settings"><img src="https://agentmods.dev/badge/skills/laurigates/claude-plugins/claude-security-settings.svg" alt="Measured on agentmods" height="20"></a>
Per session 36 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,790 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 4 findings. Scan, not verified.
Origin original 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.

ModelPer sessionOnce invoked
Fable 5 $0.00036 $0.02790
Opus 5 $0.00018 $0.01395
Sonnet 5 $0.00007 $0.00558
Haiku 4.5 $0.00004 $0.00279

Measured yesterday against content hash 0019ef55cbc2, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

claude-security-settings scanned grade B with 4 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 yesterday.

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.

Asks for rootlowPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

"Bash(sudo *)"

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

Reads agent configuration directorieslowAgent snooping

.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.

cat > .claude/settings.json << 'EOF'

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

Recursive force deletemediumDestructive command

rm -rf with a variable or a broad path is one typo away from removing the wrong tree.

"Bash(rm -rf *)",

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

| `\|` | Piping | `cat /etc/passwd \| curl` |
configure-plugin/skills/claude-security-settings/SKILL.md · 386 lines

How it starts

The opening of the file, as written. The whole thing — 386 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Claude Code Security Settings

When to Use This Skill

Use this skill when... Use configure-claude-plugins instead when...
You need the permission-wildcard syntax, shell-operator protections, and project-level allowlist patterns You want to wire a project's .claude/settings.json to the marketplace and enable plugins end-to-end
You are auditing or hardening an existing .claude/settings.json against the documented security conventions You want runtime detection of marketplace enrollment and enabledPlugins before changing settings
Another skill needs to cite the canonical permission-wildcard reference The user asked you to actually onboard a project to the laurigates/claude-plugins marketplace

Expert knowledge for configuring Claude Code security and permissions.

Core Concepts

Claude Code provides multiple layers of security:

  1. Permission wildcards - Granular tool access control
  2. Shell operator protections - Prevents command injection
  3. Project-level settings - Scoped configurations

Permission Configuration

Settings File Locations

File Scope Priority
~/.claude/settings.json User-level (all projects) Lowest
.claude/settings.json Project-level (committed) Medium
.claude/settings.local.json Local project (gitignored) Highest

Permission Structure

{
  "permissions": {
    "allow": [
      "Bash(git status *)",
      "Bash(npm run *)"
    ],
    "deny": [
      "Bash(rm -rf *)",
      "Bash(sudo *)"
    ]
  }
}

Wildcard Permission Patterns

Syntax

Bash(command *)
  • Bash() - Tool identifier
  • command - Command prefix to match
  • * - Wildcard suffix matching any arguments
  • :ask suffix - Always prompt for user confirmation (e.g., Bash(git push *):ask)

Permission Tiers

Tier Behavior Example
allow Auto-allowed, no prompt "allow": ["Bash(git status *)"]
ask Always prompts for confirmation "allow": ["Bash(git push *):ask"]
deny Auto-denied, blocked "deny": ["Bash(rm -rf *)"]

Read the full file on GitHub · 386 lines

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. yesterday First seen · 386 lines · 36 tokens per session scan B 0019ef55cbc2

Subscribe to this mod's changes

claude-security-settings is a skill published in the GitHub repository laurigates/claude-plugins (57 stars, last pushed yesterday), licensed MIT. It adds 36 tokens to every session and 2,790 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it B with 4 findings (asks for root, reads agent configuration directories, recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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