Yeachan-Heo/oh-my-codex · error · MissionCommandError

Missing mission input file. ${MISSION_HELP}

Error message

Missing mission input file.

${MISSION_HELP}

What it means

Thrown after parsing when no positional input file was given. All mission actions require a mission input file path; the message appends the full MISSION_HELP text.

Source

Thrown at src/cli/mission.ts:232

      markStatus = value;
      continue;
    }
    if (arg === "--status") {
      const value = readValue(commandArgs, index, arg);
      if (value !== "blocked" && value !== "needs-human-review") throw new MissionCommandError(`Unsupported mission mark status: ${value}`);
      markStatus = value;
      index += 1;
      continue;
    }
    if (arg.startsWith("--")) throw new MissionCommandError(`Unknown mission option: ${arg}`);
    if (!file) {
      file = arg;
      continue;
    }
    throw new MissionCommandError(`Unexpected mission argument: ${arg}`);
  }

  if (!file) throw new MissionCommandError(`Missing mission input file.\n\n${MISSION_HELP}`);
  if (action !== "rerun" && action !== "mark" && taskId) throw new MissionCommandError(`--task is only supported for mission mark/rerun.`);
  if (action === "rerun" && !taskId) throw new MissionCommandError(`mission rerun requires --task <id>.`);
  if (action !== "mark" && markStatus) throw new MissionCommandError(`--status is only supported for mission mark.`);
  if (action === "mark" && (!taskId || !markStatus)) throw new MissionCommandError(`mission mark requires --task <id> --status <blocked|needs-human-review>.`);
  return { action, file, dryRun, continueOnError, json, slug, summaryPath, taskId, markStatus, codexArgs };
}

function missionCounts(tasks: MissionTask[]): MissionSummary["counts"] {
  return {
    total: tasks.length,
    planned: tasks.filter((task) => task.status === "planned").length,
    passed: tasks.filter((task) => task.status === "passed").length,
    failed: tasks.filter((task) => task.status === "failed").length,
    skipped: tasks.filter((task) => task.status === "skipped").length,
    blocked: tasks.filter((task) => task.status === "blocked").length,
    "needs-human-review": tasks.filter((task) => task.status === "needs-human-review").length,
  };
}

View on GitHub (pinned to 3ad79a8a6f)

Solutions

1. Add the mission input file path: mission run <file>
2. Reorder so the file is a positional argument after the action
3. Consult the MISSION_HELP block included in the error message for exact usage

Example fix

# before
mission run --dry-run
# after
mission run mission.md --dry-run

if (!args.some(a => !a.startsWith('--') && a !== action)) {
  console.error('mission input file required'); process.exit(2);
}

When it happens

Trigger: `mission run` with no file, `mission run --json` (flags only, no positional), or a file argument consumed incorrectly by earlier parsing.

Common situations: Forgetting the file argument when testing flags; a flag-with-value form swallowing the file token in custom wrappers.

Understand the failure class

Background: "missing required argument" and "the following required arguments were not provided": what required-argument errors mean and how to fix them — this error's family across 20 libraries.

Related errors

• Missing value for ${flag}.
• mission rerun requires --task <id>.
• mission mark requires --task <id> --status <blocked|needs-hu
• Usage: omx auth add <slot> [--device-auth|--with-api-key|--w
• Usage: omx auth use <slot>

AI-assisted analysis of Yeachan-Heo/oh-my-codex@3ad79a8a6f (2026-08-27). Data as JSON: /api/errors/bab157d3a4477cca. Report an issue: GitHub.