Code-level audit of the verified install chain: hash-before-parse and
single-file-handle TOCTOU defenses in verified_package.go, strict
app.json parse cross-checked against the signed Catalog, untrusted
download verified against Catalog Size/SHA256, mandatory non-bypassable
pre-extract disk/running checks, and a complete stable failure-code
enum. No security defect found; records five minor optimizations, the
top being the IsRunning TOCTOU (recheck before the current->backup
rename).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>