upstream/ preserves the Claude Code skill, plugin manifests, website and
historical launch work from https://github.com/revfactory/harness at commit
cceac68ea1d0ad198ef4b7b906cd238375836387.
These files are historical source, not instructions for this Codex migration. They are not installed, discovered as project skills, or scanned by the active harness validator. Relative website assets and historical links may no longer resolve here. See the root README for current installation and behavior.