# US05-01 — Validate Credentials and Upload Readiness

Epic: [E05](../E05-immich-upload.md)

As a user, I want upload blockers and scope validated before execution so unverified or
changed files never reach Immich accidentally.

## Acceptance criteria

- Preflight checks credentials without exposing them, server reachability, selected
  album scope, canonical/safety/analysis/EXIF readiness, and current byte hashes.
- The redacted command preview shows exact folders, album mapping, and asset counts.
- Partial scope and every blocker require explicit resolution or approved policy.
- Preflight produces a versioned token invalidated by relevant changes.

## Automated tests

- Integration tests cover valid, missing/invalid credential, blocked stage, changed
  bytes, partial album, stale token, and secret redaction.

## Dependencies

- E04 complete