March 14: CLI tools v. 4.5.9 from dvtdownloadable index. Note that they actually use receipts logic to determine installed status.

20130314_dvtdownloadbleindex.plist

    	<dict>
			<key>dependencies</key>
			<array/>
			<key>fileSize</key>
			<integer>118401880</integer>
			<key>identifier</key>
			<string>Xcode.CLTools.10.8</string>
			<key>name</key>
			<string>Command Line Tools</string>
			<key>source</key>
			<string>http://devimages.apple.com/downloads/xcode/command_line_tools_for_xcode_os_x_mountain_lion_march_2013.dmg</string>
			<key>userInfo</key>
			<dict>
				<key>ActivationPredicate</key>
				<string>$MAC_OS_X_VERSION &gt;= '10.8.0' &amp;&amp; $MAC_OS_X_VERSION &lt; '10.9.0'</string>
				<key>InstallPrefix</key>
				<string>/</string>
				<key>InstalledIfAllReceiptsArePresentOrNewer</key>
				<dict>
					<key>com.apple.pkg.DevSDK</key>
					<string>10.8.0.0.1.1306847324</string>
					<key>com.apple.pkg.DeveloperToolsCLI</key>
					<string>4.6.0.0.1.1362189000</string>
				</dict>
				<key>RequiresADCAuthentication</key>
				<false/>
				<key>Summary</key>
				<string>Before installing, note that from within Terminal you can use the XCRUN tool to launch compilers and other tools embedded within the Xcode application. Use the XCODE-SELECT tool to define which version of Xcode is active.  Type "man xcrun" from within Terminal to find out more.

Downloading this package will install copies of the core command line tools and system headers into system folders, including the LLVM compiler, linker, and build tools.</string>
				<key>Xcode.SDKs</key>
				<array/>
			</dict>
			<key>version</key>
			<string>4.5.9</string>
		</dict>
    	<dict>
			<key>dependencies</key>
			<array/>
			<key>fileSize</key>
			<integer>146376178</integer>
			<key>identifier</key>
			<string>Xcode.CLTools.10.7</string>
			<key>name</key>
			<string>Command Line Tools</string>
			<key>source</key>
			<string>http://devimages.apple.com/downloads/xcode/command_line_tools_for_xcode_os_x_lion_march_2013.dmg</string>
			<key>userInfo</key>
			<dict>
				<key>ActivationPredicate</key>
				<string>$MAC_OS_X_VERSION &gt;= '10.7.0' &amp;&amp; $MAC_OS_X_VERSION &lt; '10.8.0'</string>
				<key>InstallPrefix</key>
				<string>/</string>
				<key>InstalledIfAllReceiptsArePresentOrNewer</key>
				<dict>
					<key>com.apple.pkg.BluetoothSDKLeo</key>
					<string>4.0.0.9000000000.1.1306847324</string>
					<key>com.apple.pkg.CoreAudioSDKLeo</key>
					<string>4.0.0.9000000000.1.1306847324</string>
					<key>com.apple.pkg.DevSDKLeo</key>
					<string>4.0.0.9000000000.1.1306847324</string>
					<key>com.apple.pkg.DeveloperToolsCLI</key>
					<string>4.6.0.0.1.1362189000</string>
					<key>com.apple.pkg.FireWireSDKLeo</key>
					<string>4.0.0.9000000000.1.1306847324</string>
					<key>com.apple.pkg.JavaSDKLeo</key>
					<string>4.0.0.9000000000.1.1306847324</string>
					<key>com.apple.pkg.OpenGLSDKLeo</key>
					<string>4.0.0.9000000000.1.1306847324</string>
					<key>com.apple.pkg.QuickTimeSDKLeo</key>
					<string>4.0.0.9000000000.1.1306847324</string>
					<key>com.apple.pkg.WebKitSDKLeo</key>
					<string>4.0.0.9000000000.1.1306847324</string>
					<key>com.apple.pkg.X11DocumentationLeo</key>
					<string>1.0.0.9000000000.1.1306847324</string>
					<key>com.apple.pkg.X11SDKLeo</key>
					<string>4.0.0.9000000000.1.1306847324</string>
				</dict>
				<key>RequiresADCAuthentication</key>
				<false/>
				<key>Summary</key>
				<string>Before installing, note that from within Terminal you can use the XCRUN tool to launch compilers and other tools embedded within the Xcode application. Use the XCODE-SELECT tool to define which version of Xcode is active.  Type "man xcrun" from within Terminal to find out more.

Downloading this package will install copies of the core command line tools and system headers into system folders, including the LLVM compiler, linker, and build tools.</string>
				<key>Xcode.SDKs</key>
				<array/>
			</dict>
			<key>version</key>
			<string>4.5.9</string>
		</dict>