{
  "description": "Read a file with line numbers. Prefer segments over full reads.",
  "prompt": "## file_read\n\nRead a file with line numbers. Prefer segments over full reads.\n\n**Args**: `path` (required), `start`, `end`, or `head`\n\n- `start`/`end`: 1-indexed line numbers, inclusive. Must be strings. Max segment: 2000 lines.\n- No start/end: reads up to 500 lines from line 1.\n- `head`: read first N lines (alternative to start/end).\n\n```\nfile_read(path=\"/abs/path\")\nfile_read(path=\"/abs/path\", start=\"100\", end=\"200\")\nfile_read(path=\"/abs/path\", head=\"50\")\n```\n\n- `start`/`end` are strings even though they represent numbers.\n- Use `head` as alternative to `start`/`end`.\n\n**Constraints**: Absolute paths only.",
  "args": {
    "type": "object",
    "required": [
      "path"
    ],
    "properties": {
      "path": {
        "type": "string",
        "description": "Absolute path to file"
      },
      "start": {
        "type": "string",
        "description": "1-indexed start line (default: 1)"
      },
      "end": {
        "type": "string",
        "description": "1-indexed end line, inclusive (max 2000 line segment)"
      },
      "head": {
        "type": "string",
        "description": "Read first N lines (alternative to start/end)"
      }
    }
  },
  "tier": "cold",
  "readOnly": true
}