Everything Claude Code

       !Shell !TypeScript !Python !Go !Java !Perl !Markdown > 50K+ stars | 6K+ forks | 30 contributors | 7 languages supported | Anthropic Hackathon Winner --- <div align="center"> Language / 语言 / 語言 / Dil English | Português (Brasil) | 简体中文 | 繁體中文 | 日本語 | 한국어 | Türkçe </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, 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, Cowork, and other AI agent harnesses. ---

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 | ---

• 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.

• 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.