- Remove all output by default to prevent workflow interruption - Queue changes silently to .doc-guardian-queue - Add file+type deduplication (same file won't be queued twice) - Add DOC_GUARDIAN_VERBOSE=1 env var for opt-in notifications - Users run /doc-sync or /doc-audit to process queue Fixes #312 (partial - addresses issues 1, 2, 3) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>