Helper tests/invariants/forge_credentials.py detects credential carriers via
mounts[]/env/secrets_required[]/ssh_hosts[]; today gitea-admin, gitea-ssh,
gitea-ssh-accelerators, gitea-ssh-homelab are found and none declare
write_targets — the invariant xfails(strict) until the CRS-103 rollout stamps them.
Claude-Session: https://claude.ai/code/session_018LRh1S2bHJYhEgrMu3UJx8