claude-settings-expert

Generate JSON guidance for Claude Code's settings, permissions, sandbox, hooks, and hierarchies.

Updated Nov 25, 2025
One-click install
npx skills add https://github.com/gounthar/bazel-riscv --skill claude-settings-expert-gounthar
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: claude-settings-expert
Source: https://github.com/gounthar/bazel-riscv/tree/main/.claude/skills/anthropic/claude-settings-expert
Command: npx skills add https://github.com/gounthar/bazel-riscv --skill claude-settings-expert-gounthar

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Configuring Claude Code's settings.json for permissions, sandbox, environment variables, and hooks can be complex due to its hierarchical nature and security implications. This Skill provides expert guidance to ensure secure, efficient, and customized operation, saving you time on configuration and troubleshooting.

Core Features & Use Cases

  • Granular Permissions: Define allow, deny, and ask rules for tools like Bash, Read, Write, and WebFetch to precisely control Claude's actions and enhance security.
  • Sandbox Configuration: Enable and customize sandboxing for enhanced security and isolation of operations, protecting your local environment.
  • Environment & Hooks Management: Set environment variables and configure event-driven hooks to automate workflows and validations, streamlining your development process.
  • Use Case: If you want to prevent Claude Code from reading .env files and accessing the internet, but allow it to run git status, this Skill can show you how to configure these permissions in your project's settings.json quickly and correctly.

Quick Start

Show me how to add a rule to settings.json that denies WebSearch access.

Frequently Asked Questions about claude-settings-expert

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

FAQPage Schema
How do I configure Claude Code permissions in settings.json?

Claude Code permissions are configured in settings.json using `allow`, `deny`, and `ask` rules for tools like Bash, Read, Write, and WebFetch. Define rules at local, project, shared, or enterprise levels to control which actions Claude can perform, with local settings taking precedence in the hierarchy.

What's the difference between allow, deny, and ask rules in Claude Code settings?

`Allow` rules grant unrestricted access to tools, `deny` rules block actions entirely, and `ask` rules prompt you for approval before Claude executes an action. This three-tier system lets you balance automation with security and oversight for different tools and operations.

How do I prevent Claude Code from accessing environment variables or reading specific files?

Use `deny` rules in settings.json to block Read access to sensitive files like `.env`, or configure sandbox settings to isolate operations. Specify the tool name and scope—file patterns, command categories, or network operations—to enforce granular restrictions.

Can I automate Claude Code actions using hooks and environment variables?

Yes, hooks trigger event-driven automation in Claude Code workflows, while environment variables pass configuration data to scripts and tools. Configure both in settings.json to streamline validations, callbacks, and custom automation tied to specific actions.

What does sandbox mode do in Claude Code, and when should I enable it?

Sandbox mode isolates Claude Code operations from your local environment, preventing unintended file system or system-level changes. Enable it for untrusted workflows, testing, or when you need strict containment between Claude's actions and your host system.

How does settings.json hierarchy work—which level takes priority?

Claude Code resolves settings in order of precedence: local settings override project settings, which override shared settings, which override enterprise defaults. This hierarchy lets you apply broad rules at the enterprise level while enabling fine-grained overrides for specific projects or sessions.