A bit more doco.

lib/jake.js

@@ -168,10 +168,23 @@ jake = new function () {
           !(obj.propertyIsEnumerable('length'));
       }
 
+  /**
+   * Tells us if the task has any dependencies
+   * @param {Array.<String>} deps An array of dependencies
+   * @return {Boolean} true if deps is a non-empty Array
+   */
     , _taskHasDeps = function (deps) {
         return !!(deps && _isArray(deps) && deps.length);
       }
 
+  /**
+   * Handles a file task
+   * @param {Error} err Error, if any, returned from fs.lstat
+   * @param {fs.Stats} stats Stats obj, if any, returned from fs.lstat
+   * @param {String} name The task name
+   * @param {Array} deps The array of dependencies, if any
+   * @callback {Function} Callback for running the task
+   */
     , _handleFileTask = function (err, stats, name, deps, callback) {
         // If the task has dependencies these are invoked in order.
         // If any of them were changed after the current file, or
@@ -197,6 +210,7 @@ jake = new function () {
         // be found, simply execute the task and use the
         // current time as the last time it changed.
         else if (err) {
+          // File not found
           if (err.errno == 2) {
             _taskList.push(name);
             callback(new Date());
@@ -218,6 +232,8 @@ jake = new function () {
    * recursively -- depth-first, so deps run first
    * @param {String} name The name of the current task whose
    * dependencies are being parsed.
+   * @param {Boolean} root Is this the root task of a dependency tree or not
+   * @param {Function} [callback] Callbacks for async tasks
    */
     , _parseDeps = function (name, root, callback) {
         var task = _this.getTask(name),