Best Claude Code and Codex plugins and skills in 2026
A fact-checked list of Claude Code and Codex plugins and skills worth installing, with install commands, who each suits, and how to vet them first.
AI engineering
Setting up and getting real work out of Claude Code, Codex, agent skills, plugins and MCP servers, without handing them your secrets.
Claude Code vs Codex CLI: how I split work between them
Claude Code and Codex CLI compared in November 2026: install, CLAUDE.md vs AGENTS.md, config files, sandboxes, approvals, models, plans and when to use each.
Everything Claude Code (ECC) plugin: a practical setup
How to install the Everything Claude Code (ECC) plugin, what its agents, skills, hooks and rules do, what to switch off, and how it sits with your CLAUDE.md.
How I set up Claude Code for real infrastructure work
A Claude Code setup for infrastructure repos: install, CLAUDE.md, permission rules, plan mode, hooks, MCP, subagents, skills, plugins and secret handling.
oh-my-claudecode (OMC) plugin: a multi-agent Claude Code guide
What oh-my-claudecode (OMC) does, its modes, how to install it safely, why .omc belongs in .gitignore, and when multi-agent orchestration is worth the tokens.
skills.sh agent skills directory: install, write and vet
What skills.sh is, how SKILL.md Agent Skills work in Claude Code and Codex, how to install and write one, and how to vet third-party skills before they run.