REA is an open-source MCP server that lets Claude Code, Codex, Cursor and other agents inspect native binaries, Electron apps, .NET assemblies, APKs and websites, and return findings with evidence. What it does, how to set it up, and how to use it legally.
Everything on the GitHub Administration exam as of the July 2026 update (identity, deployment and licensing, security policy, Actions at scale, and usage), plus 100 original practice questions with answers explained.
Everything on the GitHub Advanced Security exam as of the July 2026 update (Secret Protection, supply chain security, Code Security, alert triage, and rollout at scale), plus 100 original practice questions with answers explained.
Everything on the GitHub Actions exam as of the January 2026 update (workflows, custom actions, runners, secrets, and security), plus 100 original practice questions with answers explained.
Everything on the GitHub Copilot exam as of the August 2026 update (agents, Copilot CLI, instructions files, data flow, and content exclusions), plus 100 original practice questions with answers explained.
Everything on the GitHub Foundations exam as of the January 2026 update, plus 100 original practice questions across all seven domains, weighted like the real exam, with answers explained.
100 short lessons on GitHub Actions: write your first workflow, pick triggers, cache and matrix your builds, keep secrets safe, deploy with approvals, and run, watch, and debug it all from the terminal with gh.
100 short lessons, one command each: install Git, commit, branch, undo mistakes, push to GitHub, and run the whole pull request loop with the gh CLI. Every command tested on Git 2.54 and gh 2.97.
If you've started building custom Claude Skills for your team, you've probably hit the same wall