Dogfooding `/config-audit drift` against the machine. Fasit written before the
run; 6/6 predictions plus both F7 arms confirmed, 0 deviations.
M-BUG-21 (both arms):
The arg loop ended in `else if (!arg.startsWith('-')) targetPath = arg` with no
unknown-flag branch, so an unrecognised flag was dropped silently and its VALUE
became the scan target. `--output-file /tmp/x.json` scanned /tmp/x.json — a path
that does not exist — and reported the near-empty scan as drift, forever. The
same silence was destructive for `--save --name` with the value omitted: the
name stayed `default` and an existing baseline was overwritten. And the flag
ux-rules rule 2 requires did not exist at all: commands/drift.md ran the CLI
under `2>/dev/null` while telling the agent to read stdout, but the default
report, the --save confirmation and --list all write to stderr. All three modes
captured nothing.
M-BUG-27 (found during the run, not predicted):
diff-engine never compared the baseline's stored target_path against the current
target. The machine's `default` baseline is anchored to a test fixture, so
`/config-audit drift` diffed two unrelated trees, marked all 20 baseline
findings resolved and all 15 current ones new, and reported trend "improving".
A reassuring, entirely false signal — and the default path.
Root cause is one thing, not three: the CLI validated neither its flags nor its
anchor. Same class as the rollback chunk's "nothing agreed where a backup lives".
Fix: unknown options and value-less --name/--baseline/--output-file exit 3;
--output-file follows the posture.mjs pattern; `_baselineAnchor` rides in the
default-mode payload (stderr alone is invisible under `2>/dev/null`) while
--json/--raw stdout stays v5.0.0-shaped.
Suite 1410/0 (+12). Frozen snapshots untouched; raw/json/default backcompat green.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_015RGrL3noVdFSUhohaKTMSN