diff --git a/.gitignore b/.gitignore
index 85eb8f2..c4a847d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1 @@
 /result
-*.js
diff --git a/Session.omnifocusjs/Resources/start.js b/Session.omnifocusjs/Resources/start.js
new file mode 100644
index 0000000..bacaf34
--- /dev/null
+++ b/Session.omnifocusjs/Resources/start.js
@@ -0,0 +1,59 @@
+"use strict";
+/*{
+  "type": "action",
+  "targets": ["omnifocus"],
+  "author": "Brian Hicks",
+  "identifier": "zone.bytes.focus",
+  "version": "1.0",
+  "description": "Start a pomodoro for the selected task",
+  "label": "Focus",
+  "shortLabel": "Focus",
+  "paletteLabel": "Focus",
+  "image": "clock"
+}*/
+(() => {
+    var action = new PlugIn.Action(async (selection, sender) => {
+        try {
+            let task = selection.tasks[0];
+            let possibleCategories = [
+                "Personal",
+                "Team",
+                "Wandering Toolmaker",
+            ];
+            let defaultCategory = possibleCategories[0];
+            for (let tag of task.tags) {
+                if (tag.name == "Wandering Toolmaker") {
+                    defaultCategory = tag.name;
+                    break;
+                }
+                else if (tag.name == "teams" || (tag.parent && tag.parent.name == "teams") || tag.name == "work" || (tag.parent && tag.parent.name == "work")) {
+                    defaultCategory = "Team";
+                    break;
+                }
+                else if (tag.name == "personal" || (tag.parent && tag.parent.name == "personal")) {
+                    defaultCategory = "Personal";
+                    break;
+                }
+            }
+            let focusForm = new Form();
+            focusForm.addField(new Form.Field.String("project", "Project", task.containingProject ? task.containingProject.name : null));
+            focusForm.addField(new Form.Field.Option("category", "Category", possibleCategories, possibleCategories, defaultCategory));
+            focusForm.addField(new Form.Field.String("minutes", "Minutes", "25"));
+            await focusForm.show("Focus on…", "Start");
+            let values = focusForm.values;
+            let rawSessionUrl = `session:///start?intent=${encodeURIComponent(values.project)}&categoryName=${encodeURIComponent(values.category)}&duration=${encodeURIComponent(values.minutes)}`;
+            let sessionUrl = URL.fromString(rawSessionUrl);
+            if (sessionUrl === null) {
+                throw `failed to parse session string ("${rawSessionUrl}") into a URL`;
+            }
+            sessionUrl.open();
+        }
+        catch (err) {
+            console.error(err);
+        }
+    });
+    action.validate = function (selection, sender) {
+        return (selection.tasks.length === 1);
+    };
+    return action;
+})();