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claude-settings-expert

Configure Claude Code settings.json permissions, sandbox, environment variables, and hooks.

Updated Aug 27, 2026
Search Tags:#security#permissions#configuration#Claude Code#environment variables#settings#sandbox
One-click install
npx skills add https://github.com/raintree-technology/claude-starter --skill claude-settings-expert
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: claude-settings-expert
Source: https://github.com/raintree-technology/claude-starter/tree/main/.claude/skills/anthropic/claude-settings-expert
Command: npx skills add https://github.com/raintree-technology/claude-starter --skill claude-settings-expert

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill provides comprehensive guidance on configuring Claude Code's settings.json, simplifying complex permission management, sandbox setup, and environment variable configuration. It ensures secure, tailored, and efficient AI-assisted development workflows, reducing manual overhead and potential risks.

Core Features & Use Cases

  • Granular Permissions: Define allow, deny, and ask rules for tools like Read, Write, Edit, and Bash to precisely control Claude's actions and prevent unintended operations.
  • Sandbox Configuration: Enable and customize sandboxing for enhanced security and isolation of development environments, protecting sensitive data and systems.
  • Environment Variables & Hooks: Manage environment variables for consistent execution and integrate custom hooks for automation and validation, streamlining your workflow.
  • Use Case: Configure project-level settings to deny Claude access to sensitive .env files and restrict Bash commands to only git status and npm run test, ensuring a secure and controlled development environment.

Quick Start

Use the claude-settings-expert skill to explain how to deny Claude Code access to .env files in project settings.

Frequently Asked Questions about claude-settings-expert

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I restrict Claude Code access to sensitive files like .env?▼

Configure granular permissions in settings.json using `deny` rules for specific file paths. Set file-level restrictions to block Claude from reading, writing, or editing sensitive configuration files, ensuring credentials and secrets remain protected from accidental exposure.

What's the best way to set up environment variables for Claude Code workflows?▼

Define environment variables in settings.json at local, shared, or user scope levels to control execution context and tool behavior consistently across projects. Environment variable setup determines how Claude executes commands and accesses system resources securely.

How do I control which tools Claude Code can use in my project?▼

Use permission rules in settings.json to define `allow`, `deny`, and `ask` policies for tools like Read, Write, Edit, and Bash. Granular tool permissions let you limit Claude's actions—for example, restricting Bash to only `git status` and `npm run test` commands.

Can I isolate Claude Code execution in a sandbox environment?▼

Yes, enable sandbox configuration in settings.json to isolate development environments and prevent Claude from accessing sensitive data or systems. Sandboxing adds a security layer that protects your infrastructure while maintaining full workflow functionality.

What happens if I apply conflicting permission rules across different settings scopes?▼

Claude Code follows a settings precedence hierarchy: local scope overrides shared scope, which overrides user scope. Understanding scope precedence ensures your most restrictive or specific rules take effect, preventing unintended permission gaps in enterprise and team projects.

How do I automate Claude Code workflows with custom hooks?▼

Integrate custom hooks in settings.json to trigger validation, automation, and policy enforcement during Claude's execution. Hooks orchestration enables auditable, configurable deployment workflows that scale across enterprise, team, and individual project contexts.

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