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Everything Claude Code

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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, and other AI agent 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

v1.10.0 — Surface Refresh, Operator Workflows, and ECC 2.0 Alpha (Apr 2026)

• Public surface synced to the live repo — metadata, catalog counts, plugin manifests, and install-facing docs now match the actual OSS surface: 38 agents, 156 skills, and 72 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.
• 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 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, content-hash-cache-pattern, cost-aware-llm-pipeline, skill-stocktake
• AgentShield integration — /security-scan skill runs AgentShield directly from Claude Code; 1282 tests, 102 rules
• GitHub Marketplace — ECC Tools GitHub App live at github.com/marketplace/ecc-tools with free/pro/enterprise tiers
• 30+ community PRs merged — Contributions from 30 contributors across 6 languages
• 978 internal tests — Expanded validation suite across agents, skills, commands, hooks, and rules

v1.4.1 — Bug Fix (Feb 2026)

• **Fixed instinct import conten