Inside the ECC Claude Code Configuration Repository

The Core Architecture of ECC

ECC (Everything Claude Code) functions as an operating layer for coding agents rather than a simple collection of prompts. It operates on a core loop that mandates a planning phase, a test-driven development (TDD) workflow, and a fresh-context review process. The system forces the agent to capture a failing test as evidence before implementation begins. Once a task is complete, the system distills the session into "instincts"—patterns with confidence scores that the agent recalls in future sessions. A specific command allows users to cluster these instincts into reusable skills.

Security and Execution Hooks

Because the repository contains 570 instruction files and grants bash access to 53 of the 68 agents, security is a primary concern. The project includes a dedicated scanner called AgentShield, which treats the user's agent setup, project instructions, and MCP servers as an attack surface. It employs three Opus agents—an attacker, a defender, and an auditor—to scan the configuration and break the build if critical vulnerabilities are detected. The system uses a hooks file to register 24 commands across seven lifecycle events, executing Node.js one-liners before and after tool calls to manage the environment.

Implementation and Maintenance

Installation occurs at the home directory level, making the configuration active across all sessions on the machine. The system uses profiles ranging from minimal to strict to control the runtime scope. Version 2.2.1 introduced critical security hardening, specifically restricting exemption globs to the project root and preventing destructive PowerShell commands. Users should be aware that the repository grows rapidly, often outpacing its own documentation, and requires manual pruning of unnecessary language packs to maintain context window efficiency.