diff --git a/package.json b/package.json
index 23dbf37..9e9844a 100644
--- a/package.json
+++ b/package.json
@@ -3,7 +3,7 @@
 	"displayName": "Mise VSCode",
 	"publisher": "hverlin",
 	"description": "VSCode extension for mise (manged dev tools, tasks and environment variables)",
-	"version": "0.0.4",
+	"version": "0.0.5",
 	"repository": {
 		"type": "git",
 		"url": "https://github.com/hverlin/mise-vscode"
@@ -63,6 +63,10 @@
 			{
 				"command": "mise.runTask",
 				"title": "Run Mise Task"
+			},
+			{
+				"command": "mise.openToolDefinition",
+				"title": "Open Tool Definition"
 			}
 		],
 		"menus": {
diff --git a/src/extension.ts b/src/extension.ts
index 6b826cb..4556ecc 100644
--- a/src/extension.ts
+++ b/src/extension.ts
@@ -6,7 +6,7 @@ import {
 	MiseTasksProvider,
 	registerMiseCommands,
 } from "./providers/tasksProvider";
-import { MiseToolsProvider } from "./providers/toolsProvider";
+import { MiseToolsProvider, registerCommands } from "./providers/toolsProvider";
 
 let statusBarItem: vscode.StatusBarItem;
 
@@ -25,6 +25,7 @@ export function activate(context: vscode.ExtensionContext) {
 	statusBarItem.text = "$(tools) Mise";
 	statusBarItem.tooltip = "Click to refresh Mise";
 	registerMiseCommands(context, tasksProvider);
+	registerCommands(context);
 
 	vscode.window.registerTreeDataProvider("miseTasksView", tasksProvider);
 	vscode.window.registerTreeDataProvider("miseToolsView", toolsProvider);
diff --git a/src/miseService.ts b/src/miseService.ts
index 043ceaf..3459077 100644
--- a/src/miseService.ts
+++ b/src/miseService.ts
@@ -46,6 +46,7 @@ export class MiseService {
 						active: tool.active,
 						installed: tool.installed,
 						install_path: tool.install_path,
+						source: tool.source,
 					} satisfies MiseTool;
 				});
 			});
diff --git a/src/providers/tasksProvider.ts b/src/providers/tasksProvider.ts
index 5aa8f6f..26e2981 100644
--- a/src/providers/tasksProvider.ts
+++ b/src/providers/tasksProvider.ts
@@ -84,7 +84,6 @@ class TaskItem extends vscode.TreeItem {
 		this.tooltip = `Task: ${task.name}\nSource: ${task.source}\nDescription: ${task.description}`;
 		this.iconPath = new vscode.ThemeIcon("play");
 
-		// Add command to run the task
 		this.command = {
 			title: "Run Task",
 			command: "mise.runTask",
diff --git a/src/providers/toolsProvider.ts b/src/providers/toolsProvider.ts
index 041c959..c2f9510 100644
--- a/src/providers/toolsProvider.ts
+++ b/src/providers/toolsProvider.ts
@@ -1,13 +1,14 @@
+import * as path from "node:path";
 import * as vscode from "vscode";
 import type { MiseService } from "../miseService";
 
-export class MiseToolsProvider implements vscode.TreeDataProvider<ToolItem> {
-	private _onDidChangeTreeData: vscode.EventEmitter<
-		ToolItem | undefined | null | void
-	> = new vscode.EventEmitter<ToolItem | undefined | null | void>();
-	readonly onDidChangeTreeData: vscode.Event<
-		ToolItem | undefined | null | void
-	> = this._onDidChangeTreeData.event;
+type TreeItem = SourceItem | ToolItem;
+
+export class MiseToolsProvider implements vscode.TreeDataProvider<TreeItem> {
+	private _onDidChangeTreeData = new vscode.EventEmitter<
+		TreeItem | undefined | null | void
+	>();
+	readonly onDidChangeTreeData = this._onDidChangeTreeData.event;
 
 	constructor(private miseService: MiseService) {}
 
@@ -15,24 +16,126 @@ export class MiseToolsProvider implements vscode.TreeDataProvider<ToolItem> {
 		this._onDidChangeTreeData.fire();
 	}
 
-	getTreeItem(element: ToolItem): vscode.TreeItem {
+	getTreeItem(element: TreeItem): vscode.TreeItem {
 		return element;
 	}
 
-	async getChildren(): Promise<ToolItem[]> {
-		const tools = await this.miseService.getTools();
-		return tools.map((tool) => new ToolItem(tool));
+	async getChildren(element?: TreeItem): Promise<TreeItem[]> {
+		if (!element) {
+			const tools = await this.miseService.getTools();
+			const toolsBySource = this.groupToolsBySource(tools);
+
+			return Object.entries(toolsBySource).map(
+				([source, tools]) => new SourceItem(source, tools),
+			);
+		}
+
+		if (element instanceof SourceItem) {
+			return element.tools.map((tool) => new ToolItem(tool));
+		}
+
+		return [];
+	}
+
+	private groupToolsBySource(tools: MiseTool[]): Record<string, MiseTool[]> {
+		return tools.reduce((acc: Record<string, MiseTool[]>, tool: MiseTool) => {
+			const source = tool.source?.path || "Unknown";
+			if (!acc[source]) {
+				acc[source] = [];
+			}
+			acc[source].push(tool);
+			return acc;
+		}, {});
+	}
+}
+
+class SourceItem extends vscode.TreeItem {
+	constructor(
+		public readonly source: string,
+		public readonly tools: MiseTool[],
+	) {
+		super(path.basename(source), vscode.TreeItemCollapsibleState.Expanded);
+
+		this.tooltip = `Source: ${source}
+Number of tools: ${tools.length}`;
+
+		this.iconPath = new vscode.ThemeIcon("folder");
+		this.contextValue = "source";
+		this.description = `(${tools.length} tools)`;
 	}
 }
 
 class ToolItem extends vscode.TreeItem {
 	constructor(tool: MiseTool) {
 		super(`${tool.name} ${tool.version}`, vscode.TreeItemCollapsibleState.None);
+
 		this.tooltip = `Tool: ${tool.name}
 Version: ${tool.version}
 Requested Version: ${tool.requested_version}
+Source: ${tool.source?.path || "Unknown"}
 Activated: ${tool.active}
 Installed: ${tool.installed}
 Install Path: ${tool.install_path}`;
+
+		this.iconPath = this.getToolIcon(tool);
+
+		if (tool.source?.path) {
+			this.command = {
+				command: "mise.openToolDefinition",
+				title: "Open Tool Definition",
+				arguments: [tool],
+			};
+		}
+	}
+
+	private getToolIcon(tool: MiseTool): vscode.ThemeIcon {
+		if (!tool.installed) {
+			return new vscode.ThemeIcon("circle-outline");
+		}
+		if (tool.active) {
+			return new vscode.ThemeIcon("check");
+		}
+		return new vscode.ThemeIcon("circle-filled");
 	}
 }
+
+export function registerCommands(context: vscode.ExtensionContext) {
+	context.subscriptions.push(
+		vscode.commands.registerCommand(
+			"mise.openToolDefinition",
+			async (tool: MiseTool) => {
+				if (!tool.source?.path) {
+					return;
+				}
+
+				const document = await vscode.workspace.openTextDocument(
+					tool.source.path,
+				);
+				const editor = await vscode.window.showTextDocument(document);
+
+				let line = 0;
+				for (let i = 0; i < editor.document.getText().split("\n").length; i++) {
+					const l = editor.document.getText().split("\n")[i];
+					const [firstWord] = l.replace(/\s/g, "").replace(/"/g, "").split("=");
+					if (firstWord === tool.name) {
+						line = i + 1;
+						break;
+					}
+				}
+
+				if (line) {
+					const position = new vscode.Position(Math.max(0, line - 1), 0);
+					const position2 = new vscode.Position(
+						Math.max(0, line - 1),
+						tool.name.includes(":") ? tool.name.length + 2 : tool.name.length,
+					);
+					editor.selection = new vscode.Selection(position, position2);
+					editor.revealRange(
+						new vscode.Range(position, position2),
+						vscode.TextEditorRevealType.InCenter,
+					);
+				}
+			},
+		),
+	);
+}
diff --git a/src/types.ts b/src/types.ts
index 025697d..ea040f2 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -4,9 +4,15 @@ type MiseTask = {
 	description: string;
 };
 
+type MiseToolSource = {
+	type: string;
+	path: string;
+};
+
 type MiseTool = {
 	name: string;
 	version: string;
+	source?: MiseToolSource;
 	requested_version: string;
 	installed: boolean;
 	active: boolean;