Can I use deny rules to protect API keys and secrets?

While deny rules act as workflow guardrails, it is recommended to use PreToolUse hooks for actual secret protection because deny rules are tool-specific and can sometimes be bypassed with command chaining.

How do I stop Claude from reading node_modules or build artifacts?

You can add 'Read(node_modules/**)' or 'Read(dist/**)' to the 'deny' section of your settings.json file. This prevents Claude from scanning large directories, which saves tokens and improves response speed.

Where are Claude Code permissions stored?

Permissions are primarily managed in settings.json files, which can exist at the global user level (~/.claude/settings.json), shared project level, or local project level.

How do permission rules prioritize in Claude Code?

Rules follow a strict precedence order of Deny > Ask > Allow. This ensures that an explicit 'deny' rule always overrides any 'allow' or 'ask' rules for the same tool or pattern.

What is the difference between 'Ask' and 'Allow' permissions?

'Allow' grants permission for safe, routine tasks like reading source code, while 'Ask' prompts for manual user confirmation before performing potentially destructive actions like deleting files or pushing to a remote repository.

Managing Permissions - Claude Code Skill

The Managing Permissions skill provides a comprehensive framework for securing Claude Code environments through detailed control over tool execution and file access. It guides users through the structured configuration of settings.json, implementing a 'Deny > Ask > Allow' precedence model to balance developer velocity with operational safety. This skill helps users establish workflow guardrails—such as preventing accidental Git pushes to protected branches—while also offering strategies for resource management by blocking high-volume directories like node_modules to optimize token usage. It further distinguishes between routine workflow controls and hardened security measures, directing users toward PreToolUse hooks for robust secret protection.

主な機能

01Guidance on using security hooks for sensitive credential protection

022 GitHub stars

03Standardized Allow, Ask, and Deny rule implementation patterns

04Token optimization strategies via directory blocking

05Tool-specific permission syntax for Bash, Read, Edit, and WebFetch

06Precedence-based configuration for project-level and global settings

ユースケース

01Troubleshooting and resolving 'permission denied' errors in automated workflows

02Hardening a local development environment against accidental file modifications

03Establishing organizational security guardrails for shared project configurations

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add wombat9000/claude-plugins managing-permissions

For use in Claude.ai and ChatGPT

Download Skill

主な機能

01Guidance on using security hooks for sensitive credential protection

022 GitHub stars

03Standardized Allow, Ask, and Deny rule implementation patterns

04Token optimization strategies via directory blocking

05Tool-specific permission syntax for Bash, Read, Edit, and WebFetch

06Precedence-based configuration for project-level and global settings

ユースケース

01Troubleshooting and resolving 'permission denied' errors in automated workflows

02Hardening a local development environment against accidental file modifications

03Establishing organizational security guardrails for shared project configurations

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add wombat9000/claude-plugins managing-permissions

For use in Claude.ai and ChatGPT

Download Skill

Claude Code Permission Manager

Claude Code Permission Manager

主な機能

ユースケース

主な機能

ユースケース