Claude Code Mastery: Open-source config system adds persistent memory and curated skills to Claude Code CLI
What Claude Code Mastery does
Claude Code Mastery is an open-source configuration system designed to address persistent issues with Claude Code CLI. It solves four main problems: sessions starting from zero with no memory of previous conversations, auto-compact destroying critical context, lack of best practice enforcement, and manual setup requirements for every project.
Core features
- Perpetual Memory: A 6-file Memory Bank per project (via MCP) that persists across sessions and survives compaction. Claude reads all files at startup and writes updates after every task, preserving project context, architectural decisions, tech stack details, and progress.
- Smart Hooks (6 lifecycle events): SessionStart restores context automatically, PreCompact saves everything before compaction, PreToolUse blocks dangerous commands (rm -rf, force push), and UserPromptSubmit reminds about skills and Memory Bank on every message.
- 26+ Curated Skills from 5 marketplaces: Superpowers (TDD, debugging, planning, code review, parallel agents), Trail of Bits (security analysis, differential review, supply chain audit), Context Engineering Kit (spec-driven dev, kaizen, reflexion), Shield (automated pentesting, SAST, secrets scanning), plus 3 custom skills (architect-review, context-guardian, production-audit).
- Zero-Config Launcher: Type
claudein any project directory. Memory Bank, .gitignore, session logs, and diagnostics are set up automatically on first run. - Cross-Platform: Supports macOS (zsh), Linux (bash), and Windows (PowerShell) with one installer.
- Customizable: Interactive installer, language selection (en/pt-BR/es), project presets (Node.js, Python, PHP, monorepo), and selective plugin installation.
Testing and installation
The system includes 103 static tests plus 138 Docker integration tests (Ubuntu/Bash, Ubuntu/Zsh, Alpine). It achieved a Shield security score of 100/100 and uses GitHub Actions CI on every push.
Install with:
curl -fsSL https://raw.githubusercontent.com/alissonlinneker/claude-code-mastery/main/install.sh | bashThe repository is at github.com/alissonlinneker/claude-code-mastery and is MIT licensed.
📖 Read the full source: r/ClaudeAI
👀 See Also
Semble: Code Search for AI Agents Using 98% Fewer Tokens Than grep+read
Semble is an open-source code search library for AI agents that combines static Model2Vec embeddings with BM25, running entirely on CPU. It indexes a repo in ~250ms and answers queries in ~1.5ms, achieving 0.854 NDCG@10 — 99% of a 137M-parameter transformer's quality — while using 98% fewer tokens than grep+read.
Needle: A 26M Parameter Function-Calling Model That Runs at 6000 tok/s on Mobile
Cactus open-sources Needle, a 26M parameter model for single-shot function calling, achieving 6000 tok/s prefill and 1200 tok/s decode on consumer devices. Built with Simple Attention Networks (no FFNs), it beats several larger models on tool-use benchmarks.
Agent Image Skills: Simple Image Hosting for Claude Code Agents
A developer built a simple image hosting service at https://images.labnocturne.com to solve the problem of Claude Code agents generating images with nowhere to store them. The service provides instant test keys via curl, auto-deletes files after 7 days, and includes Claude Code MCP skills for upload, file listing, and deletion.
Constrails: Early-Alpha External Governance Layer for AI Agents
Constrails is an external runtime governance layer for AI agents that places a control layer between agents and their tools, implementing capability checks, risk scoring, policy evaluation, and audit logging. The early-alpha project aims to address safety concerns by moving controls outside the agent itself.