{
  "slug": "aws-s3-cp-mv-and-sync-add-no-overwrite-c4bd20897cba",
  "title": "aws s3 cp, mv, and sync add --no-overwrite",
  "tools": [
    "aws-cli"
  ],
  "tags": [
    "agent"
  ],
  "introduced_at": "2026-01-14T19:11:19.000Z",
  "announced_at": "2026-01-14T19:11:19.000Z",
  "effective_at": null,
  "date_basis": "source-publication",
  "status": "unknown",
  "how": {
    "incantation": "When copying, moving, or syncing S3 files or objects, add `--no-overwrite` to transfer only items absent from the destination.",
    "examples": [
      "aws s3 cp --no-overwrite <source> <destination>",
      "aws s3 mv --no-overwrite <source> <destination>",
      "aws s3 sync --no-overwrite <source> <destination>"
    ],
    "gotchas": [
      "Version: 2.33.0",
      "<source> (required): Source path or S3 URI.",
      "<destination> (required): Target path or S3 URI.",
      "--no-overwrite: Boolean option; transfers only files or objects not present at the destination.",
      "Prerequisite: AWS CLI 2.33.0 adds this option to `s3 cp`, `s3 mv`, and `s3 sync`."
    ]
  },
  "why_it_matters": "Copy, move, or sync S3 objects without overwriting objects already at the destination.",
  "sources": [
    "https://github.com/aws/aws-cli/blob/2.33.0/CHANGELOG.rst",
    "https://docs.aws.amazon.com/en_en/cli/latest/userguide/cli-services-s3-commands.html"
  ],
  "rank": 0.98042,
  "judge": {
    "publish": true,
    "judge_model": "codex-cli/gpt-6-luna+typesafe/jev-1.13.0",
    "prompt_version": "extract-v7+enrich-v1+judge-v2x3+jev-publish-v1"
  },
  "review_state": "approved",
  "provenance": {
    "run_id": "cloud-20261008",
    "verdict_id": "cloud-20261008:cloud-20261008-42bfaad3e56f51d0-0:gate",
    "evidence_hash": "a575358a77a7c9b3f710aef03ae410eaff83a46bd822c0a01a40cb5e5b60905f"
  },
  "review": {
    "draft_hash": "5f44655a154702c5054c2d5f99f81c7ebe65eada34475f3ac7223edcfe840698",
    "reviewer": "publication-gate",
    "reviewed_at": "2026-10-07T00:00:00.000Z",
    "decision": "cloud-20261008:gate",
    "reason": "3 of 3 judge runs approved with p_yes >= 0.9 (mean 0.98 >= 0.9; 2 needed) and Jev gave 0.77 (>= 0.6 needed)."
  }
}