Use when shipping installers, setup scripts, portable bundles, bootstrap flows, or “works on a fresh machine” claims.
Scanned 9/3/2026
Install to Claude Code
Skills Directorynpx -y skills add ShugokiFable/Ultimate-AI-Starter-Bundle --skill fresh-install-proof --agent claude-codeInstalls into .claude/skills of the current project.
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---
name: fresh-install-proof
description: Use when shipping installers, setup scripts, portable bundles, bootstrap flows, or “works on a fresh machine” claims.
---
# Fresh Install Proof
## Core rule
An installer is proven from **empty** state, not from the developer machine that already has dependencies and config.
## Required matrix
Test a disposable user/home with no prior product state. Include a destination containing **spaces** and **Unicode** characters. Exercise missing runtimes, missing config files, read-only/locked files where relevant, offline-vs-online modes, and an **idempotent** second install.
A passing fresh-install proof requires:
- one documented entrypoint;
- dependencies installed or a functional automatic fallback;
- no required manual “now edit/copy/approve this” step when automation is supported;
- failure returns non-zero and never prints a success banner;
- re-running preserves user settings and repairs partial state;
- final doctor verifies installed state, not merely source files.
## Evidence
Record the exact command, clean-state assumptions, exit code, installed paths, and doctor result. A test against an already-configured profile is a regression test, not fresh-install proof.
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