Best Context Engineering AI Skills & MCP Servers

MCP server giving AI agents (Claude Code, Claude Desktop, Cursor, ChatGPT, Codex, OpenClaw) persistent long-term memory backed by your local Obsidian markdown vault. Hybrid retrieval (BM25 + ML embeddings + BGE reranker, RRF-fused), HNSW + int8 quantizati

DEPRECATED — install the Claude Code plugin at gramatr/claude-plugin instead. This npm package no longer ships a CLI; Codex and Gemini integrations are paused pending HTTPS+OAuth MCP support.

ThumbGate self-improving agent governance: thumbs-up/down turns every mistake into a prevention rule and blocks repeat patterns. 33 pre-action checks, budget enforcement, and self-protection for Claude Code, Cursor, Codex, Gemini CLI, and Amp.

Developer context continuity system — temporal knowledge graph for AI coding agents via MCP. Inspired by Vannevar Bush's 1945 concept of a machine that remembers everything.

MCP server for AI assistants: read, write, edit, and manage files securely on local filesystem.

Context Engineering Toolkit — generate GitHub Copilot customization files (agents, prompts, instructions, skills, hooks, MCP servers, agentic workflows) via a multi-agent AI pipeline with interactive CLI and 11 built-in templates.

MCP server library + ratel-mcp CLI: expose a Ratel tool catalog as a Model Context Protocol server. Manage upstream MCP servers, OAuth, and Claude Code import from one binary.

Universal Context Manager MCP Server - AI Productivity Platform

Universal Context Manager MCP Server - AI Productivity Platform