build: remember last models

package.json

@@ -1,6 +1,6 @@
 {
   "name": "opencode-multi-model",
-  "version": "0.1.6",
+  "version": "0.2.0",
   "description": "Launch multiple AI models in tmux sessions - OpenCode Plugin, CLI, and Project Tool",
   "type": "module",
   "main": "./dist/index.js",

src/cli.ts

@@ -4,7 +4,7 @@ import pkg from "../package.json";
 import { cleanupMultiModel } from "./core/cleanup";
 import { closeMultiModel } from "./core/close";
 import { openMultiModel } from "./core/open";
-import { getBinaryName } from "./core/utils";
+import { getBinaryName, loadSettings, promptUser } from "./core/utils";
 
 const program = new Command();
 
@@ -26,19 +26,40 @@ program
     "-b, --binary <binary>",
     "Binary to use (opencode or kilo). Defaults to env var OPENCODE_MULTI_MODEL_BINARY or 'opencode'",
   )
+  .option("-f, --force", "Skip confirmation prompts", false)
   .action(
     async (
       sessionName: string,
-      options: { models: string[]; binary?: string },
+      options: { models: string[]; binary?: string; force: boolean },
     ) => {
       try {
+        let models = options.models;
+
+        if (models.length === 0) {
+          const settings = await loadSettings();
+          if (settings.lastModels.length > 0) {
+            if (!options.force) {
+              const answer = await promptUser(
+                `Use models [${models.join(", ")}]? (Y/n): `,
+              );
+              if (answer.toLowerCase() === "y" || answer.toLowerCase() === "yes") {
+                models = settings.lastModels;
+
+              }
+            } else {
+              models = settings.lastModels;
+            }
+          }
+        }
+
         const binaryName = options.binary || getBinaryName();
 
         const result = await openMultiModel({
           sessionName,
-          models: options.models,
+          models,
           binaryName,
           mode: "cli",
+          saveToSettings: true,
         });
 
         if (result.success) {

src/core/cleanup.ts

@@ -1,23 +1,6 @@
-import * as readline from "node:readline";
 import chalk from "chalk";
 import type { CleanupOptions, CleanupResult } from "../types";
-import { runCommand } from "./utils";
+import { promptUser, runCommand } from "./utils";
-
-/**
- * Prompts the user for confirmation on the terminal.
- */
-async function promptUser(question: string): Promise<string> {
-  const rl = readline.createInterface({
-    input: process.stdin,
-    output: process.stdout,
-  });
-  return new Promise((resolve) => {
-    rl.question(question, (answer) => {
-      rl.close();
-      resolve(answer);
-    });
-  });
-}
 
 /**
  * Lists all archive tags matching the pattern archive/*.

src/core/close.ts

@@ -1,33 +1,13 @@
-import * as readline from "node:readline";
 import chalk from "chalk"; // removed console usage
 import type { CloseSessionOptions, CloseSessionResult } from "../types";
 import {
   getSessionPath,
   getWorktreesForSession,
+  promptUser,
   runCommand,
   sanitizeName,
 } from "./utils";
 
-/**
- * Prompts the user for input on the terminal.
- *
- * @param question The question to display.
- * @returns The user's answer.
- */
-async function promptUser(question: string): Promise<string> {
-  const rl = readline.createInterface({
-    input: process.stdin,
-    output: process.stdout,
-  });
-
-  return new Promise((resolve) => {
-    rl.question(question, (answer) => {
-      rl.close();
-      resolve(answer);
-    });
-  });
-}
-
 /**
  * Closes a multi-model tmux session and optionally cleans up worktrees and branches.
  *

src/core/open.ts

@@ -10,6 +10,7 @@ import {
   normalizeModels,
   runCommand,
   sanitizeName,
+  saveSettings,
   undoWorktree,
 } from "./utils";
 
@@ -313,6 +314,10 @@ export async function openMultiModel(
     };
   }
 
+  if (options.saveToSettings) {
+    await saveSettings({ lastModels: models });
+  }
+
   return {
     success: true,
     sessionName,

src/core/utils.ts

@@ -1,13 +1,18 @@
+import * as fs from "node:fs";
 import * as os from "node:os";
 import * as path from "node:path";
+import * as readline from "node:readline";
 import ora, { type Ora } from "ora";
 import type {
   CommandResult,
+  MultiModelSettings,
   RunCommandOptions,
   WindowLaunchPlan,
   WorktreeInfo,
 } from "../types";
 
+let sharedSpinner: Ora | undefined;
+
 const MAX_SUGGESTIONS = 3;
 const WINDOW_NAME_LIMIT = 24;
 
@@ -35,17 +40,21 @@ export async function runCommand(
     process.env.NODE_ENV === "test" || process.env.BUN_ENV === "test";
   if (options?.mode === "cli" && !isTest) {
     const msg = options.spinnerMsg || `Running ${parts[0]}...`;
-    spinner = ora(msg).start();
+    if (!sharedSpinner) {
+      sharedSpinner = ora(msg).start();
+    } else {
+      sharedSpinner.text = msg;
+      if (!sharedSpinner.isSpinning) {
+        sharedSpinner.start();
+      }
+    }
+    spinner = sharedSpinner;
   }
 
   const result = await Bun.$`${parts}`.quiet().nothrow();
 
   if (spinner) {
-    if (result.exitCode === 0) {
+    spinner.stop().clear();
-      spinner.succeed();
-    } else {
-      spinner.fail();
-    }
   }
 
   return {
@@ -483,3 +492,49 @@ export async function undoWorktree(
 export function getBinaryName(): string {
   return process.env.OPENCODE_MULTI_MODEL_BINARY || "opencode";
 }
+
+export function getSettingsPath(): string {
+  const homedir = os.homedir();
+  return path.join(homedir, ".config", "opencode-multi-model", "settings.json");
+}
+
+export async function loadSettings(): Promise<MultiModelSettings> {
+  const settingsPath = getSettingsPath();
+  try {
+    const content = await fs.promises.readFile(settingsPath, "utf-8");
+    const parsed = JSON.parse(content) as MultiModelSettings;
+    if (!Array.isArray(parsed.lastModels)) {
+      return { lastModels: [] };
+    }
+    return parsed;
+  } catch {
+    return { lastModels: [] };
+  }
+}
+
+export async function saveSettings(
+  settings: MultiModelSettings,
+): Promise<void> {
+  const settingsPath = getSettingsPath();
+  const dir = path.dirname(settingsPath);
+  await fs.promises.mkdir(dir, { recursive: true });
+  await fs.promises.writeFile(
+    settingsPath,
+    JSON.stringify(settings, null, 2),
+    "utf-8",
+  );
+}
+
+export async function promptUser(question: string): Promise<string> {
+  const rl = readline.createInterface({
+    input: process.stdin,
+    output: process.stdout,
+  });
+
+  return new Promise((resolve) => {
+    rl.question(question, (answer) => {
+      rl.close();
+      resolve(answer);
+    });
+  });
+}

src/types.ts

@@ -1,3 +1,10 @@
+/**
+ * Settings stored in ~/.config/opencode-multi-model/settings.json
+ */
+export interface MultiModelSettings {
+  lastModels: string[];
+}
+
 /**
  * Options for launching a multi-model tmux session.
  */
@@ -10,6 +17,8 @@ export interface MultiModelOptions {
   binaryName?: string;
   /** Caller context: 'cli' shows shell commands, 'tool' shows tool instructions. */
   mode: "cli" | "tool";
+  /** Save models to settings file on successful launch (CLI only). */
+  saveToSettings?: boolean;
 }
 
 /**

tests/open.test.ts

@@ -538,6 +538,34 @@ describe("multi-model launch", () => {
       ?.match(/-n (\S+)/)?.[1];
     expect(windowName?.length).toBeLessThanOrEqual(24);
   });
+
+  test("saves settings on successful launch when saveToSettings is true", async () => {
+    spyOn(fs.promises, "mkdir").mockResolvedValue(undefined);
+    spyOn(fs.promises, "writeFile").mockResolvedValue(undefined);
+
+    const result = await openMultiModel({
+      mode: "cli",
+      sessionName: "test-session",
+      models: ["openai/gpt-5.2"],
+      saveToSettings: true,
+    });
+
+    expect(result.success).toBe(true);
+  });
+
+  test("does not save settings when saveToSettings is false", async () => {
+    spyOn(fs.promises, "mkdir").mockResolvedValue(undefined);
+    spyOn(fs.promises, "writeFile").mockResolvedValue(undefined);
+
+    const result = await openMultiModel({
+      mode: "cli",
+      sessionName: "test-session",
+      models: ["openai/gpt-5.2"],
+      saveToSettings: false,
+    });
+
+    expect(result.success).toBe(true);
+  });
 });
 
 // ----------

tests/utils.test.ts

@@ -7,6 +7,7 @@ import {
   spyOn,
   test,
 } from "bun:test";
+import * as fs from "node:fs";
 import * as os from "node:os";
 import {
   createWindowBaseName,
@@ -15,13 +16,16 @@ import {
   formatInvalidModelError,
   getBinaryName,
   getSessionPath,
+  getSettingsPath,
   getWorktreePath,
   getWorktreesForSession,
   launchModelInWindow,
   levenshtein,
+  loadSettings,
   normalizeModels,
   runCommand,
   sanitizeName,
+  saveSettings,
   shellQuote,
   suggestModels,
   undoWorktree,
@@ -484,4 +488,86 @@ describe("core utils", () => {
       delete process.env.OPENCODE_MULTI_MODEL_BINARY;
     });
   });
+
+  describe("getSettingsPath", () => {
+    test("returns correct settings path", () => {
+      spyOn(os, "homedir").mockReturnValue("/home/user");
+      expect(getSettingsPath()).toBe(
+        "/home/user/.config/opencode-multi-model/settings.json",
+      );
+    });
+  });
+
+  describe("loadSettings", () => {
+    let readFileMock: ReturnType<typeof spyOn>;
+
+    beforeEach(() => {
+      spyOn(os, "homedir").mockReturnValue("/home/user");
+      readFileMock = spyOn(fs.promises, "readFile");
+    });
+
+    test("returns default settings when file does not exist", async () => {
+      readFileMock.mockRejectedValue(new Error("ENOENT"));
+      const result = await loadSettings();
+      expect(result).toEqual({ lastModels: [] });
+    });
+
+    test("returns default settings when file has invalid JSON", async () => {
+      readFileMock.mockResolvedValue("not valid json");
+      const result = await loadSettings();
+      expect(result).toEqual({ lastModels: [] });
+    });
+
+    test("returns default settings when lastModels is not an array", async () => {
+      readFileMock.mockResolvedValue(
+        JSON.stringify({ lastModels: "not array" }),
+      );
+      const result = await loadSettings();
+      expect(result).toEqual({ lastModels: [] });
+    });
+
+    test("parses valid settings file", async () => {
+      readFileMock.mockResolvedValue(
+        JSON.stringify({ lastModels: ["model1", "model2"] }),
+      );
+      const result = await loadSettings();
+      expect(result).toEqual({ lastModels: ["model1", "model2"] });
+    });
+  });
+
+  describe("saveSettings", () => {
+    let mkdirMock: ReturnType<typeof spyOn>;
+    let writeFileMock: ReturnType<typeof spyOn>;
+
+    beforeEach(() => {
+      spyOn(os, "homedir").mockReturnValue("/home/user");
+      mkdirMock = spyOn(fs.promises, "mkdir");
+      writeFileMock = spyOn(fs.promises, "writeFile");
+    });
+
+    test("creates directory if it does not exist", async () => {
+      mkdirMock.mockResolvedValue(undefined);
+      writeFileMock.mockResolvedValue(undefined);
+
+      await saveSettings({ lastModels: ["model1"] });
+
+      expect(mkdirMock).toHaveBeenCalledWith(
+        "/home/user/.config/opencode-multi-model",
+        { recursive: true },
+      );
+    });
+
+    test("writes settings with correct content", async () => {
+      mkdirMock.mockResolvedValue(undefined);
+      writeFileMock.mockResolvedValue(undefined);
+
+      await saveSettings({ lastModels: ["model1", "model2"] });
+
+      expect(writeFileMock).toHaveBeenCalledWith(
+        "/home/user/.config/opencode-multi-model/settings.json",
+        JSON.stringify({ lastModels: ["model1", "model2"] }, null, 2),
+        "utf-8",
+      );
+    });
+  });
 });