{
  "name": "git_log_or_diff",
  "description": "Show commit logs or changes between commits (git log --oneline or git diff).",
  "inputSchema": {
    "type": "object",
    "properties": {
      "action": {
        "description": "The action to perform: 'log' for commit logs or 'diff' for changes",
        "enum": [
          "log",
          "diff"
        ],
        "type": "string"
      },
      "authors": {
        "description": "Optional array of author names or emails to filter commits by (only applies to 'log' action)",
        "items": {
          "type": "string"
        },
        "type": "array"
      },
      "directory": {
        "description": "The directory to run the command in",
        "type": "string"
      },
      "revision_range": {
        "description": "Optional revision range (e.g., 'HEAD', 'main..feature', 'abc123', 'HEAD~5..HEAD'). For 'diff' action, shows differences for the specified range. For 'log' action, shows commits in the range. Defaults to HEAD.",
        "type": "string"
      },
      "since": {
        "description": "Optional date/timestamp/relative time to show commits after (e.g., '2024-01-01', '2 weeks ago', 'yesterday', '1 hour ago', '3 days ago'). Only applies to 'log' action.",
        "type": "string"
      },
      "until": {
        "description": "Optional date/timestamp/relative time to show commits before (e.g., '2024-12-31', '1 week ago', 'today', 'yesterday', '2 hours ago'). Only applies to 'log' action.",
        "type": "string"
      }
    },
    "required": [
      "directory",
      "action"
    ]
  }
}