{
  "id": "diffs",
  "name": "Diffs",
  "description": "Read-only diff viewer and image renderer for agents.",
  "uiHints": {
    "defaults.fontFamily": {
      "label": "Default Font",
      "help": "Preferred font family name for diff content and headers."
    },
    "defaults.fontSize": {
      "label": "Default Font Size",
      "help": "Base diff font size in pixels."
    },
    "defaults.layout": {
      "label": "Default Layout",
      "help": "Initial diff layout shown in the viewer."
    },
    "defaults.wordWrap": {
      "label": "Default Word Wrap",
      "help": "Wrap long lines by default."
    },
    "defaults.background": {
      "label": "Default Background Highlights",
      "help": "Show added/removed background highlights by default."
    },
    "defaults.theme": {
      "label": "Default Theme",
      "help": "Initial viewer theme."
    },
    "defaults.mode": {
      "label": "Default Output Mode",
      "help": "Tool default when mode is omitted. Use view for canvas/gateway viewer, image for PNG, or both."
    }
  },
  "configSchema": {
    "type": "object",
    "additionalProperties": false,
    "properties": {
      "defaults": {
        "type": "object",
        "additionalProperties": false,
        "properties": {
          "fontFamily": {
            "type": "string",
            "default": "Fira Code"
          },
          "fontSize": {
            "type": "number",
            "minimum": 10,
            "maximum": 24,
            "default": 15
          },
          "layout": {
            "type": "string",
            "enum": ["unified", "split"],
            "default": "unified"
          },
          "wordWrap": {
            "type": "boolean",
            "default": true
          },
          "background": {
            "type": "boolean",
            "default": true
          },
          "theme": {
            "type": "string",
            "enum": ["light", "dark"],
            "default": "dark"
          },
          "mode": {
            "type": "string",
            "enum": ["view", "image", "both"],
            "default": "both"
          }
        }
      }
    }
  }
}