fix: restore npm plugin loading for package installs

index.cjs

@@ -0,0 +1,18 @@
+"use strict";
+
+async function loadPlugin() {
+  const mod = await import("./src/index.js");
+  return mod.default || mod.WorktreeWorkflowPlugin;
+}
+
+async function WorktreeWorkflowPlugin(...args) {
+  const plugin = await loadPlugin();
+  if (typeof plugin !== "function") {
+    throw new TypeError("Plugin export is not a function");
+  }
+  return plugin(...args);
+}
+
+module.exports = WorktreeWorkflowPlugin;
+module.exports.default = WorktreeWorkflowPlugin;
+module.exports.WorktreeWorkflowPlugin = WorktreeWorkflowPlugin;

package.json

@@ -3,14 +3,19 @@
   "version": "0.1.0",
   "description": "OpenCode plugin for creating and cleaning up git worktrees.",
   "type": "module",
-  "main": "./src/index.js",
+  "main": "./index.cjs",
   "bin": {
     "opencode-worktree-workflow": "./src/cli.js"
   },
   "exports": {
-    ".": "./src/index.js"
+    ".": {
+      "require": "./index.cjs",
+      "import": "./src/index.js",
+      "default": "./index.cjs"
+    }
   },
   "files": [
+    "index.cjs",
     "src",
     "schemas",
     "skills"

test/plugin-entrypoint.test.js

@@ -0,0 +1,43 @@
+import test from "node:test";
+import assert from "node:assert/strict";
+import { createRequire } from "node:module";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+
+const require = createRequire(import.meta.url);
+const repoRoot = path.resolve(path.dirname(fileURLToPath(import.meta.url)), "..");
+
+test("package root resolves to a callable plugin factory for require loaders", async () => {
+  const pluginModule = require(repoRoot);
+
+  assert.equal(typeof pluginModule, "function");
+  assert.equal(pluginModule, pluginModule.default);
+  assert.equal(pluginModule, pluginModule.WorktreeWorkflowPlugin);
+
+  const plugin = await pluginModule({
+    $: Object.assign(
+      () => ({
+        cwd() {
+          return this;
+        },
+        quiet() {
+          return this;
+        },
+        async nothrow() {
+          return {
+            text() {
+              return "";
+            },
+            stderr: Buffer.from(""),
+            exitCode: 0,
+          };
+        },
+      }),
+      { escape(value) { return JSON.stringify(String(value)); } },
+    ),
+    directory: repoRoot,
+  });
+
+  assert.equal(typeof plugin, "object");
+  assert.equal(typeof plugin.hooks["tool.execute.before"], "function");
+});