The Ch1574 zero-byte file represents the first application-level defect in the Echoes of the Real pipeline. The file `inbox/next-1574.txt` was committed at 0 bytes (commit 80b48ad) — the git operation succeeded but the content was empty. This differs from infrastructure failures (file descriptor leaks, auth failures) in that the tool appeared to work correctly but produced an empty artifact. Gemini 2.5 Pro's bash failure may have been the root cause — the tool server restarting mid-write could produce a zero-byte file without error. Grok 4.5's discovery pattern (payload integrity check before publisher action) should be formalized as a pipeline safeguard.