{
  "slug": "railway-ca-imports-committed-mcp-json-servers-into-agents-775907538931",
  "title": "railway ca imports committed .mcp.json servers into agents",
  "tools": [
    "railway"
  ],
  "tags": [
    "agent"
  ],
  "introduced_at": "2026-08-27T01:09:32.000Z",
  "announced_at": "2026-08-27T01:09:32.000Z",
  "effective_at": null,
  "date_basis": "source-publication",
  "status": "unknown",
  "how": {
    "incantation": "When launching a Railway cloud agent from a repository with a committed `.mcp.json`, run `railway ca` there. Its enabled servers are imported with `user-` prefixes, excluding disabled entries and the platform-owned names `railway`, `playwright`, and `railway-machine`.",
    "examples": [
      "railway ca"
    ],
    "gotchas": [
      "Version: v5.45.0",
      "Prerequisite: Cloud Agents must be enabled in Priority Boarding; install the Railway CLI and sign in.",
      "Prerequisite: The repository must have a committed `.mcp.json` for its MCP servers to be imported.",
      "Import applies when launching from a repo with a committed `.mcp.json`.",
      "Entries with `disabled: true` and platform-owned names `railway`, `playwright`, and `railway-machine` are excluded from import.",
      "The VM-side merge is described as add-only."
    ]
  },
  "why_it_matters": "When launching a Railway cloud agent from a repository with a committed `.mcp.json`, carry the repository's MCP server configuration to the agent.",
  "sources": [
    "https://github.com/railwayapp/cli/releases/tag/v5.45.0",
    "https://github.com/railwayapp/cli/pull/1132",
    "https://docs.railway.com/cloud-agents/terminal",
    "https://docs.railway.com/cloud-agents/quickstart",
    "https://github.com/railwayapp/cli/blob/v5.45.0/src/commands/cloud_agent/mcp_sync.rs"
  ],
  "rank": 0.93035,
  "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-f2643ac8a1d0715e-1:gate",
    "evidence_hash": "b11e85eaa6972c00db2f40aba61e21690776da0e8ac2dbd99741132475ac5cb5"
  },
  "review": {
    "draft_hash": "9d2fad9e7a523cd669dcd88a0086e8f2a9d17ad06e7c8737e74a4a7ee54ead09",
    "reviewer": "publication-gate",
    "reviewed_at": "2026-10-07T00:00:00.000Z",
    "decision": "wave1b-20261016:gate",
    "reason": "2 of 3 judge runs approved with p_yes >= 0.9 (mean 0.93 >= 0.9; 2 needed) and Jev gave 0.62 (>= 0.6 needed)."
  }
}