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Everything Claude Code

182K+ stars | 28K+ forks | 170+ contributors | 12+ language ecosystems | Anthropic Hackathon Winner

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English | Português (Brasil) | 简体中文 | 繁體中文 | 日本語 | 한국어 | Türkçe | Русский | Tiếng Việt | ไทย

The performance optimization system for AI agent harnesses. From an Anthropic hackathon winner.

Not just configs. A complete system: skills, instincts, memory optimization, continuous learning, security scanning, and research-first development. Production-ready agents, skills, hooks, rules, MCP configurations, and legacy command shims evolved over 10+ months of intensive daily use building real products.

Works across Claude Code, Codex, Cursor, OpenCode, Gemini, Zed, GitHub Copilot, and other AI agent harnesses.

ECC v2.0.0-rc.1 adds the public Hermes operator story on top of that reusable layer: start with the Hermes setup guide, then review the rc.1 release notes and cross-harness architecture.

OSS stays free. This repo is MIT-licensed forever. ECC Pro is the hosted GitHub App for private repos. Sponsors and Pro subscribers fund the work — that's why a single maintainer ships weekly across 7 harnesses.

The Guides

This repo is the raw code only. The guides explain everything.

| Topic | What You'll Learn | |-------|-------------------| | Token Optimization | Model selection, system prompt slimming, background processes | | Memory Persistence | Hooks that save/load context across sessions automatically | | Continuous Learning | Auto-extract patterns from sessions into reusable skills | | Verification Loops | Checkpoint vs continuous evals, grader types, pass@k metrics | | Parallelization | Git worktrees, cascade method, when to scale instances | | Subagent Orchestration | The context problem, iterative retrieval pattern |

What's New

v2.0.0-rc.1 — Surface Refresh, Operator Workflows, and ECC 2.0 Alpha (Apr 2026)

• Dashboard GUI — New Tkinter-based desktop application (ecc_dashboard.py or npm run dashboard) with dark/light theme toggle, font customization, and project logo in header and taskbar.
• Public surface synced to the live repo — metadata, catalog counts, plugin manifests, and install-facing docs now match the actual OSS surface: 60 agents, 232 skills, and 75 legacy command shims.
• Operator and outbound workflow expansion — brand-voice, social-graph-ranker, connections-optimizer, customer-billing-ops, ecc-tools-cost-audit, google-workspace-ops, project-flow-ops, and workspace-surface-audit round out the operator lane.
• Media and launch tooling — manim-video, remotion-video-creation, and upgraded social publishing surfaces make technical explainers and launch content part of the same system.
• Framework and product surface growth — nestjs-patterns, richer Codex/OpenCode install surfaces, and expanded cross-harness packaging keep the repo usable beyond Claude Code alone.
• ECC 2.0 alpha is in-tree — the Rust control-plane prototype in ecc2/ now builds locally and exposes dashboard, start, sessions, status, stop, resume, and daemon commands. It is usable as an alpha, not yet a general release.
• Operator status snapshots — ecc status --markdown --write status.md turns the local state store into a portable handoff covering readiness, active sessions, skill-run health, install health, pending governance events, and linked work items from Linear/GitHub/handoffs. Use ecc work-items upsert ... for manual entries, ecc work-items sync-github --repo owner/repo for PR/issue queue state, and ecc status --exit-code to fail automation when readiness needs attention.
• Ecosystem hardening — AgentShield, ECC Tools cost controls, billing portal work, and website refreshes continue to ship around the core plugin instead of drifting into separate silos.

v1.9.0 — Selective Install & Language Expansion (Mar 2026)

• Selective install architecture — Manifest-driven install pipeline with install-plan.js and install-apply.js for targeted component installation. State store tracks what's installed and enables incremental updates.
• 6 new agents — typescript-reviewer, pytorch-build-resolver, java-build-resolver, java-reviewer, kotlin-reviewer, kotlin-build-resolver expand language coverage to 10 languages.
• New skills — pytorch-patterns for deep learning workflows, documentation-lookup for API reference research, bun-runtime and nextjs-turbopack for modern JS toolchains, plus 8 operational domain skills and mcp-server-patterns.
• Session & state infrastructure — SQLite state store with query CLI, session adapters for structured recording, skill evolution foundation for self-improving skills.
• Orchestration overhaul — Harness audit scoring made deterministic, orchestration status and launcher compatibility hardened, observer loop prevention with 5-layer guard.
• Observer reliability — Memory explosion fix with throttling and tail sampling, sandbox access fix, lazy-start logic, and re-entrancy guard.
• 12 language ecosystems — New rules for Java, PHP, Perl, Kotlin/Android/KMP, C++, and Rust join existing TypeScript, Python, Go, and common rules.
• Community contributions — Korean and Chinese translations, biome hook optimization, video processing skills, operational skills, PowerShell installer, Antigravity IDE support.
• CI hardening — 19 test failure fixes, catalog count enforcement, install manifest validation, and full test suite green.

v1.8.0 — Harness Performance System (Mar 2026)

• Harness-first release — ECC is now explicitly framed as an agen