# everything-claude-code | Affaan Mustafa | Knowledge Base | Instagit

The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.

GitHub Stars: 89.2k

Repository: https://github.com/affaan-m/everything-claude-code

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## Articles

### [How to Contribute to the Everything Claude Code Project: A Complete Guide](/affaan-m/everything-claude-code/how-to-contribute-to-the-project)

Contribute to the Everything Claude Code project easily. Follow our guide to fork, branch, add skills/agents, test, and submit pull requests for seamless integration.

- Tags: how-to-guide
- Published: 2026-03-20

### [Everything Claude Code Release Notes: Complete Version History (1.8.0 – 1.9.0)](/affaan-m/everything-claude-code/what-changed-in-each-version)

Explore Everything Claude Code release notes from v1.8.0 to v1.9.0. Discover manifest installation, multi-ecosystem support, and advanced safety features for your code.

- Tags: release-notes
- Published: 2026-03-20

### [Everything Claude Code Language Ecosystems: 12 Supported Languages and Frameworks](/affaan-m/everything-claude-code/what-language-ecosystems-are-supported)

Explore the Everything Claude Code project supporting 12 language ecosystems like TypeScript, Python, Go, and Java. Discover dedicated agents, rule sets, and framework skills for enhanced code review.

- Tags: support
- Published: 2026-03-20

### [Complete Guide to hooks.json Configuration Options in Everything Claude Code](/affaan-m/everything-claude-code/what-configuration-options-in-hooks.json)

Explore the hooks.json configuration options for Claude Code. Understand PreToolUse, SessionStart, and more to customize Claude's behavior with matchers, commands, and parameters.

- Tags: how-to-guide
- Published: 2026-03-20

### [How to Install and Configure Everything Claude Code: Complete Setup Guide](/affaan-m/everything-claude-code/how-to-install-and-configure-everything-claude-code)

Install and configure Everything Claude Code with our complete setup guide. Learn to use 27 agents and 59 commands after quick installation via plugin marketplace or file copy.

- Tags: getting-started
- Published: 2026-03-20

### [How to Use the Build-Error-Resolver Agent for Build Failures in Claude Code](/affaan-m/everything-claude-code/how-to-use-build-error-resolver-agent)

Fix TypeScript build failures in Claude Code with the build-error-resolver agent. Automatically diagnose and repair errors using the /build-fix command for minimal, safe changes.

- Tags: how-to-guide
- Published: 2026-03-20

### [How to Integrate the Code-Reviewer Agent into a Claude Code Development Workflow](/affaan-m/everything-claude-code/how-to-integrate-code-reviewer-agent)

Learn to integrate the automatic code-reviewer agent into your Claude Code workflow. Enhance security and quality by blocking critical changes before commits.

- Tags: how-to-guide
- Published: 2026-03-20

### [React and Next.js Frontend Patterns Recommended by Everything Claude Code](/affaan-m/everything-claude-code/frontend-patterns-for-react-nextjs)

Discover React and Next.js frontend patterns recommended by Everything Claude Code. Learn composition, custom hooks, state management, and memoization for scalable apps.

- Tags: patterns
- Published: 2026-03-20

### [Backend Patterns for API Design: 7 Essential Patterns from Everything Claude Code](/affaan-m/everything-claude-code/backend-patterns-for-api-design)

Explore 7 essential backend patterns for API design recommended by Everything Claude Code. Learn to build scalable secure APIs with RESTful structure, JWT auth, and more.

- Tags: api-design
- Published: 2026-03-20

### [How to Set Up Playwright E2E Tests Using the e2e-runner Agent in Claude Code](/affaan-m/everything-claude-code/how-to-set-up-playwright-e2e-tests)

Automate Playwright E2E tests with the e2e-runner agent in Claude Code. Learn to orchestrate Agent Browser, generate Page-Object Model tests, and manage flaky tests for smoother testing.

- Tags: how-to-guide
- Published: 2026-03-20

### [TDD Workflow and Test Coverage Requirements for Claude Code: A Complete Guide](/affaan-m/everything-claude-code/what-is-the-tdd-workflow)

Master Claude Code TDD workflow requirements. Learn about the seven-step process and achieve 80% test coverage for unit, integration, and end-to-end tests. Enhance your code quality today.

- Tags: how-to-guide
- Published: 2026-03-20

### [How to Use the Security-Reviewer Agent for Vulnerability Detection with Claude Code](/affaan-m/everything-claude-code/how-to-use-security-reviewer-agent)

Discover how to use the security-reviewer agent with Claude Code to automatically detect OWASP Top 10 vulnerabilities, secrets, and insecure dependencies in your repositories.

- Tags: how-to-guide
- Published: 2026-03-20

### [How to Ensure Cross-Harness Compatibility Between Claude Code, Codex, and Cursor](/affaan-m/everything-claude-code/how-to-ensure-cross-harness-compatibility)

Ensure cross-harness compatibility between Claude Code, Codex, and Cursor by managing parallel skill directories and using the harness-optimizer agent for seamless synchronization.

- Tags: best-practices
- Published: 2026-03-20

### [Subagent Orchestration with Iterative Retrieval in Claude Code](/affaan-m/everything-claude-code/how-subagent-orchestration-works)

Discover subagent orchestration with iterative retrieval in Claude Code. Learn how subagents refine context through a four-phase loop for efficient codebase exploration.

- Tags: deep-dive
- Published: 2026-03-20

### [How to Implement Parallelization Using Git Worktrees with Claude Code: A Complete Guide](/affaan-m/everything-claude-code/how-to-implement-parallelization-with-git-worktrees)

Learn to implement parallelization with Git worktrees and Claude Code. This guide shows how to create isolated directories for concurrent editing, testing, and committing without conflicts.

- Tags: how-to-guide
- Published: 2026-03-20

### [What Are Verification Loops and pass@k Metrics in Claude Code?](/affaan-m/everything-claude-code/what-are-verification-loops-and-passk-metrics)

Understand verification loops and pass@k metrics in Claude Code. Learn about automated quality gates and reliability statistics to improve your workflow.

- Tags: deep-dive
- Published: 2026-03-20

### [Token Optimization When Using Claude Code: Best Practices for Long-Running Sessions](/affaan-m/everything-claude-code/best-practices-for-token-optimization)

Master token optimization with Claude Code. Learn best practices like trigger-table lazy loading and strategic model selection to significantly reduce costs and maintain context quality.

- Tags: best-practices
- Published: 2026-03-20

### [How to Set Up MCP Servers for Documentation Lookup in Claude Code: A Complete Guide](/affaan-m/everything-claude-code/how-to-set-up-mcp-servers)

Learn how to set up MCP servers for documentation lookup in Claude Code. Configure servers, set environment variables, and manage your context window for efficient code assistance.

- Tags: how-to-guide
- Published: 2026-03-20

### [Everything Claude Code Slash Commands: Complete Guide to /plan, /tdd, /verify and More](/affaan-m/everything-claude-code/what-are-the-slash-commands)

Master Claude Code slash commands like /plan, /tdd, and /verify. Automate your software development with over 20 specialized agent commands. Get the complete guide now.

- Tags: how-to-guide
- Published: 2026-03-20

### [How to Create and Use Custom Skills for Domain‑Specific Tasks in Claude Code](/affaan-m/everything-claude-code/how-to-create-custom-skills)

Learn to create and use custom skills for domain-specific tasks in Claude Code. Scaffold, populate, and invoke your own knowledge modules to enhance Claude's capabilities.

- Tags: how-to-guide
- Published: 2026-03-20

### [The 27 Specialized Agents in Everything Claude Code: Complete Guide to AI-Powered Development](/affaan-m/everything-claude-code/what-are-the-27-specialized-agents)

Explore the 27 specialized agents within Everything Claude Code. This comprehensive guide details their use cases for AI-powered development, from planning to code review.

- Tags: deep-dive
- Published: 2026-03-20

### [How to Configure and Use Claude Code Hooks: Matcher Syntax, Hook Types, and Runtime Controls](/affaan-m/everything-claude-code/how-to-configure-and-use-claude-code-hooks)

Learn to configure and use Claude Code hooks. Explore matcher syntax, hook types, and runtime controls to extend Claude's capabilities. Follow our guide for effective integration.

- Tags: how-to-guide
- Published: 2026-03-20