{
  "slug": "railway-sandbox-checkpoint-commands-create-and-boot-saved-checkpoints-b697c5dcceaf",
  "title": "railway sandbox checkpoint commands create and boot saved checkpoints",
  "tools": [
    "railway"
  ],
  "tags": [
    "agent"
  ],
  "introduced_at": "2026-06-11T18:58:28.000Z",
  "announced_at": "2026-06-11T18:58:28.000Z",
  "effective_at": null,
  "date_basis": "source-publication",
  "status": "unknown",
  "how": {
    "incantation": "When you need to preserve a sandbox’s disk, run `railway sandbox checkpoint create <name>` to capture the active sandbox, or add `--id <ID>` to select one. Then run `railway sandbox create --checkpoint <name>` to boot a fresh sandbox from that checkpoint.",
    "examples": [
      "railway sandbox checkpoint create <name>",
      "railway sandbox checkpoint create <name> --id <ID>",
      "railway sandbox create --checkpoint <name>"
    ],
    "gotchas": [
      "Version: v5.12.0",
      "<name> (required): Checkpoint name; usable with `sandbox create --checkpoint`.",
      "--id <ID>: Select source sandbox ID; defaults to the active sandbox.",
      "--checkpoint <name>: Create from a named checkpoint; conflicts with `--template`.",
      "Prerequisite: The CLI documents that the `PROJECT_SANDBOXES` feature must be enabled.",
      "Checkpoint creation is synchronous and the checkpoint is ready when the command returns.",
      "Reusing a checkpoint name replaces the previous checkpoint.",
      "The checkpoint captures the active sandbox's disk; `--id` can be used to select a sandbox."
    ]
  },
  "why_it_matters": "When working with a Railway sandbox, save its disk state and start a fresh sandbox from that saved state.",
  "sources": [
    "https://github.com/railwayapp/cli/releases/tag/v5.12.0",
    "https://github.com/railwayapp/cli/pull/967",
    "https://github.com/railwayapp/cli/blob/v5.12.0/src/commands/sandbox.rs"
  ],
  "rank": 0.95025,
  "judge": {
    "publish": true,
    "judge_model": "codex-cli/gpt-6-luna+typesafe/jev-1.13.0",
    "prompt_version": "extract-v7+enrich-v2+judge-v2x3+jev-publish-v1"
  },
  "review_state": "approved",
  "provenance": {
    "run_id": "wave1b-20261016",
    "verdict_id": "wave1b-20261016:wave1b-20261016-2e91a421f94f9162-0:gate",
    "evidence_hash": "afef2184e7b86a7b340fd7f42a5759a4b5cd9663734763baea545bc75923d31b"
  },
  "review": {
    "draft_hash": "a11f684e9550376fa87d88b8321f4852ce06abfc3ca383252dbf833ce15edcaf",
    "reviewer": "publication-gate",
    "reviewed_at": "2026-10-07T00:00:00.000Z",
    "decision": "wave1b-20261016:gate",
    "reason": "3 of 3 judge runs approved with p_yes >= 0.9 (mean 0.95 >= 0.9; 2 needed) and Jev gave 0.79 (>= 0.6 needed)."
  }
}