# claude-code | Anthropic | Knowledge Base | Instagit

Claude Code is an agentic coding tool that lives in your terminal, understands your codebase, and helps you code faster by executing routine tasks, explaining complex code, and handling git workflows - all through natural language commands.

GitHub Stars: 104k

Repository: https://github.com/anthropics/claude-code

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## Articles

### [How to Debug Hook and Plugin Issues in Claude Code: Complete Troubleshooting Guide](/anthropics/claude-code/debug-hook-plugin-issues-claude-code)

Debug hook and plugin issues in Claude Code by verifying rule loading, evaluating matches with RuleEngine, and testing hooks using JSON payloads. Enhance your Claude Code development.

- Tags: how-to-guide
- Published: 2026-04-02

### [How to Migrate Code and Prompts from Claude Sonnet 4.x to Opus 4.5](/anthropics/claude-code/migrate-code-prompts-claude-sonnet-4.x-opus-4.5)

Easily migrate Claude Sonnet 4.x code and prompts to Opus 4.5. Update model identifiers, boost max tokens, and use the anthropics/claude-code repository for automated bulk updates.

- Tags: migration-guide
- Published: 2026-04-02

### [Hookify Rule Syntax in Claude Code: A Complete Guide to Custom Hooks](/anthropics/claude-code/hookify-rule-syntax-claude-code)

Master Hookify rule syntax in Claude Code. Learn to define custom safety hooks with YAML and Markdown using regex patterns and field-based conditions for secure tool usage.

- Tags: deep-dive
- Published: 2026-04-02

### [How to Share Plugins Across Projects and Teams in Claude Code](/anthropics/claude-code/share-plugins-across-projects-teams-claude-code)

Learn how to share plugins across projects and teams in Claude Code using marketplace, project-level, and managed settings for efficient collaboration and tool management.

- Tags: how-to-guide
- Published: 2026-04-02

### [How to Configure the Plugin Marketplace for Claude Code](/anthropics/claude-code/configure-plugin-marketplace-claude-code)

Learn how to configure the plugin marketplace for Claude Code by editing settings.json or using CLI commands to add, remove, and update Git-based manifest sources.

- Tags: how-to-guide
- Published: 2026-04-02

### [How to Use Security Guidance Hooks for Detecting Dangerous Code Patterns in Claude Code](/anthropics/claude-code/use-security-guidance-hooks-detecting-dangerous-code-patterns-claude-code)

Learn how to use security guidance hooks in Claude Code to detect dangerous code patterns. Scan file paths and content to prevent risky edits effectively.

- Tags: how-to-guide
- Published: 2026-04-02

### [How to Use Self-Referential AI Loops for Autonomous Iteration in Claude Code](/anthropics/claude-code/use-self-referential-ai-loops-autonomous-iteration-claude-code)

Master self-referential AI loops in Claude Code for autonomous iteration. Achieve verifiable completions without external scripts. Explore the Ralph Wiggum technique today.

- Tags: how-to-guide
- Published: 2026-04-02

### [Claude Code 7-Phase Feature Development Workflow: A Complete Guide](/anthropics/claude-code/7-phase-approach-feature-development-workflow-automation-claude-code)

Automate full-stack feature development with Claude Code's 7 phase workflow. This AI driven process ensures features are understood, designed, and reviewed for robust implementation.

- Tags: how-to-guide
- Published: 2026-04-02

### [How Code Review Confidence Scoring Works in Claude Code](/anthropics/claude-code/code-review-confidence-scoring-claude-code)

Understand Claude Code's confidence scoring. It assigns a 0-100 value to issues, filtering below 80 to deliver high-signal feedback, improving your code review process.

- Tags: explained
- Published: 2026-04-02

### [How to Build Frontend Design Plugins with Auto-Invoked Skills in Claude Code](/anthropics/claude-code/build-frontend-design-plugins-auto-invoked-skills-claude-code)

Build frontend design plugins with Claude Code using auto-invoked skills. Streamline workflows by automatically triggering AI actions for specific user requests. Learn more now.

- Tags: how-to-guide
- Published: 2026-04-02

### [How to Automate PR Review with Specialized Agents in Claude Code](/anthropics/claude-code/automate-pr-review-specialized-agents-claude-code)

Automate PR reviews with Claude Code's specialized agents. Discover how the pr-review-toolkit plugin analyzes Git changes and generates markdown reports for efficient code review.

- Tags: how-to-guide
- Published: 2026-04-02

### [How to Automate Git Workflow with the Commit Commands Plugin in Claude Code](/anthropics/claude-code/automate-git-workflow-commit-commands-plugin-claude-code)

Automate your Git workflow in Claude Code with the Commit Commands plugin. Streamline staging, message generation, and pull request creation for efficient development.

- Tags: how-to-guide
- Published: 2026-04-02

### [How to Implement Learning Mode for Interactive Developer Education in Claude Code](/anthropics/claude-code/implement-learning-mode-interactive-developer-education-claude-code)

Implement developer education in Claude Code with Learning Mode. This plugin injects context, explains trade-offs, and offers insights after code contributions. Learn more.

- Tags: how-to-guide
- Published: 2026-04-02

### [How to Create Custom Output Styles Using SessionStart Hooks in Claude Code](/anthropics/claude-code/create-custom-output-styles-sessionstart-hooks-claude-code)

Learn how to create custom output styles in Claude Code. Use SessionStart hooks to inject instructions and append additionalContext to your system prompt for tailored sessions.

- Tags: how-to-guide
- Published: 2026-04-02

### [How to Integrate MCP Servers with Claude Code Plugins: A Complete Guide](/anthropics/claude-code/integrate-mcp-server-claude-code-plugins)

Easily integrate MCP servers with Claude Code plugins. This guide details how to expose external services as native Claude tools using various transport methods.

- Tags: how-to-guide
- Published: 2026-04-02

### [Strict Mode Settings for Enterprise Deployments in Claude Code: Complete Security Configuration Guide](/anthropics/claude-code/strict-mode-settings-enterprise-claude-code)

Secure your enterprise Claude Code deployments with strict mode settings. Learn how to configure deny-by-default security, block web tools, and mandate sandboxed Bash for maximum protection.

- Tags: how-to-guide
- Published: 2026-04-02

### [How to Configure the Sandbox in Claude Code: A Complete Security Guide](/anthropics/claude-code/configure-sandbox-claude-code)

Learn how to configure the sandbox in Claude Code for enhanced security. Isolate Bash tool execution, restrict file system access and network activity with our comprehensive guide.

- Tags: security-guide
- Published: 2026-04-02

### [How to Configure the Permission System in Claude Code: A Complete Guide](/anthropics/claude-code/configure-permission-system-claude-code)

Configure Claude Code's permission system by editing .claude.json or settings.json. Define ask, deny, and sandbox rules to control tool execution automatically, require approval, or block tools.

- Tags: how-to-guide
- Published: 2026-04-02

### [How to Create Security Hooks in Claude Code to Prevent Dangerous Operations](/anthropics/claude-code/create-security-hooks-claude-code-prevent-dangerous-operations)

Learn to create security hooks in Claude Code to prevent dangerous operations. Use the PreToolUse hook framework to inspect and abort file modifications.

- Tags: how-to-guide
- Published: 2026-04-02

### [How to Write Specialized Agents in Claude Code Plugins: A Complete Guide](/anthropics/claude-code/write-specialized-agents-claude-code-plugins)

Learn to write specialized agents in Claude Code plugins. This guide helps you define autonomous subprocesses using Markdown and YAML for seamless user intent matching.

- Tags: how-to-guide
- Published: 2026-04-02

### [How to Create Custom Slash Commands for Claude Code: Complete Developer Guide](/anthropics/claude-code/create-custom-slash-commands-claude-code)

Learn to create custom slash commands for Claude Code with this developer guide. Explore Markdown, YAML, and bash snippets to enhance your coding workflow and integrate custom commands effortlessly.

- Tags: how-to-guide
- Published: 2026-04-02

### [How the Claude Code Plugin System Architecture Works](/anthropics/claude-code/claude-code-plugin-system-architecture)

Explore the Claude Code plugin system architecture. Discover how it efficiently scans, registers commands, agents, and more without core code modification.

- Tags: architecture
- Published: 2026-04-02