{
  "slug": "heroku-local-accepts-start-cmd-when-no-procfile-is-present-9ff39f5b9950",
  "title": "heroku local accepts --start-cmd when no Procfile is present",
  "tools": [
    "heroku"
  ],
  "tags": [
    "agent"
  ],
  "introduced_at": "2026-04-08T18:10:49.000Z",
  "announced_at": "2026-04-08T18:10:49.000Z",
  "effective_at": null,
  "date_basis": "source-publication",
  "status": "unknown",
  "how": {
    "incantation": "When the app has no Procfile, run `heroku local` with `--start-cmd` set to the startup command. The flag runs that command as the `web` process.",
    "examples": [
      "heroku local --start-cmd \"<startup-command>\""
    ],
    "gotchas": [
      "Version: v11.2.0",
      "--start-cmd=<value>: Command to run as `web` when no Procfile is present.",
      "Prerequisite: Heroku Local is installed automatically as part of the Heroku CLI.",
      "The flag applies when no Procfile is present."
    ]
  },
  "why_it_matters": "Run a local app that has no Procfile by specifying its startup command.",
  "sources": [
    "https://github.com/heroku/cli/releases/tag/v11.2.0",
    "https://devcenter.heroku.com/articles/heroku-cli-commands",
    "https://devcenter.heroku.com/articles/heroku-local"
  ],
  "rank": 0.92033,
  "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": "wave2a-20261017",
    "verdict_id": "wave2a-20261017:wave2a-20261017-dfeb856792edfa0f-2:gate",
    "evidence_hash": "d1bc8b441a7988d4a54f95b63d646bab03d12aaa444ed686468ae357def89f39"
  },
  "review": {
    "draft_hash": "17a81e529b16ded2f2ce7a17078f7d3ee969edd7824cba6cff68e44ff4882785",
    "reviewer": "publication-gate",
    "reviewed_at": "2026-10-07T00:00:00.000Z",
    "decision": "wave2a-20261017:gate",
    "reason": "2 of 3 judge runs approved with p_yes >= 0.9 (mean 0.92 >= 0.9; 2 needed) and Jev gave 0.67 (>= 0.6 needed)."
  }
}