Everything Claude Code — API Design

**Language:** English | [Português (Brasil)](docs/pt-BR/README.md) | [简体中文](README.zh-CN.md) | [繁體中文](docs/zh-TW/README.md) | [日本語](docs/ja-JP/README.md) | [한국어](docs/ko-KR/README.md) [Türkçe](docs/tr/README.md) # Everything Claude Code [](https://github.com/affaan-m/everything-claude-code/stargazers) [](https://github.com/affaan-m/everything-claude-code/network/members) [](https://github.com/affaan-m/everything-claude-code/graphs/contributors) [](https://www.npmjs.com/package/ecc-universal) [](https://www.npmjs.com/package/ecc-agentshield) [](https://github.com/marketplace/ecc-tools) [](LICENSE)        > **50K+ stars** | **6K+ forks** | **30 contributors** | **7 languages supported** | **Anthropic Hackathon Winner** --- <div align="center"> **🌐 Language / 语言 / 語言 / Dil** [**English**](README.md) | [Português (Brasil)](docs/pt-BR/README.md) | [简体中文](README.zh-CN.md) | [繁體中文](docs/zh-TW/README.md) | [日本語](docs/ja-JP/README.md) | [한국어](docs/ko-KR/README.md) | [Türkçe](docs/tr/README.md) </div> --- **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, hooks, commands, rules, and MCP configurations evolved over 10+ months of intensive daily use building real products. Works across **Claude Code**, **Codex**, **Cowork**, and other AI agent harnesses. --- ## The Guides This repo is the raw code only. The guides explain everything. <table> <tr> <td width="33%"> <a href="https://x.com/affaanmustafa/status/2012378465664745795"> <img src="./assets/images/guides/shorthand-guide.png" alt="The Shorthand Guide to Everything Claude Code" /> </a> </td> <td width="33%"> <a href="https://x.com/affaanmustafa/status/2014040193557471352"> <img src="./assets/images/guides/longform-guide.png" alt="The Longform Guide to Everything Claude Code" /> </a> </td> <td width="33%"> <a href="https://x.com/affaanmustafa/status/2033263813387223421"> <img src="./assets/images/security/security-guide-header.png" alt="The Shorthand Guide to Everything Agentic Security" /> </a> </td> </tr> <tr> <td align="center"><b>Shorthand Guide</b><br/>Setup, foundations, philosophy. <b>Read this first.</b></td> <td align="center"><b>Longform Guide</b><br/>Token optimization, memory persistence, evals, parallelization.</td> <td align="center"><b>Security Guide</b><br/>Attack vectors, sandboxing, sanitization, CVEs, AgentShield.</td> </tr> </table> | 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 ### 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, security hook, 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 agent harness performance system, not just a config pack. - **Hook reliability overhaul** — SessionStart root fallback, Stop-phase session summaries, and script-based hooks replacing fragile inline one-liners. - **Hook runtime controls** — `ECC_HOOK_PROFILE=minimal|standard|strict` and `ECC_DISABLED_HOOKS=...` for runtime gating without editing hook files. - **New harness commands** — `/harness-audit`, `/loop-start`, `/loop-status`, `/quality-gate`, `/model-route`. - **NanoClaw v2** — model routing, skill hot-load, session branch/search/export/compact/metrics. - **Cross-harness parity** — behavior tightened across Claude Code, Cursor, OpenCode, and Codex app/CLI. - **997 internal tests passing** — full suite green after hook/runtime refactor and compatibility updates. ### v1.7.0 — Cross-Platform Expansion & Presentation Builder (Feb 2026) - **Codex app + CLI support** — Direct `AGENTS.md`-based Codex support, installer targeting, and Codex docs - **`frontend-slides` skill** — Zero-dependency HTML presentation builder with PPTX conversion guidance and strict viewport-fit rules - **5 new generic business/content skills** — `article-writing`, `content-engine`, `market-research`, `investor-materials`, `investor-outreach` - **Broader tool coverage** — Cursor, Codex, and OpenCode support tightened so the same repo ships cleanly across all major harnesses - **992 internal tests** — Expanded validation and regression coverage across plugin, hooks, skills, and packaging ### v1.6.0 — Codex CLI, AgentShield & Marketplace (Feb 2026) - **Codex CLI support** — New `/codex-setup` command generates `codex.md` for OpenAI Codex CLI compatibility - **7 new skills** — `search-first`, `swift-actor-persistence`, `swift-protocol-di-testing`, `regex-vs-llm-structured-text`, `conte