[opensource-SantanderAI]

Adds a self-contained install.sh that installs and updates ralph without requiring just.

What it does

• Downloads the repo tarball (curl + tar only) and installs ralph-loop.sh to ~/.local/bin.
• Copies the bundled skills (juez, maestro, ralph) into Claude Code, Codex CLI and Antigravity CLI, mirroring just install + just skills-install.
• Idempotent: same command installs or updates.

Usage

curl -fsSL https://raw.githubusercontent.com/SantanderAI/ralph/main/install.sh | sh

Options (flags or env vars): --no-skills, --ref, --repo, --install-dir.

Testing

• Parity with just verified (just skills-status reports all up to date).
• curl | sh simulated via stdin.
• Error handling for invalid ref (exit 1) and unknown option (exit 2).
• POSIX syntax checked with sh -n.

[opensource-SantanderAI]

Note for reviewers: install.sh was tested locally (parity with just, curl|sh via stdin, invalid-ref and unknown-option error handling, sh -n). install.ps1 mirrors it but was not executed locally (no pwsh available on the author's machine) and CI's PSScriptAnalyzer step only targets ralph-loop.ps1, so a reviewer with pwsh 6+ should smoke-test install.ps1 (and optionally run PSScriptAnalyzer on it).