diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index fa5b8e4..fcd10b9 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -1,20 +1,16 @@
 name: test
 
 on:
-  schedule:
-    - cron: "0 7 * * 0"
   push:
-    paths:
-      - "**.md"
-      - "**.ts"
-      - ".github/workflows/test.yml"
-      - "deno.jsonc"
+    branches:
+      - main
   pull_request:
     paths:
       - "**.md"
       - "**.ts"
       - ".github/workflows/test.yml"
       - "deno.jsonc"
+  workflow_dispatch:
 
 jobs:
   check:
@@ -22,14 +18,14 @@ jobs:
       matrix:
         runner:
           - ubuntu-latest
-        version:
+        deno_version:
           - "1.x"
     runs-on: ${{ matrix.runner }}
     steps:
       - uses: actions/checkout@v4
       - uses: denoland/setup-deno@v1
         with:
-          deno-version: "${{ matrix.version }}"
+          deno-version: "${{ matrix.deno_version }}"
       - name: Lint check
         run: deno lint
       - name: Format check
diff --git a/README.md b/README.md
index 43798ff..e9d2ff1 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # 🪐 denops_core
 
-[![jsr](https://img.shields.io/jsr/v/%40denops/core?logo=javascript&logoColor=white)](https://jsr.io/@denops/core)
+[![JSR](https://jsr.io/badges/@denops/core)](https://jsr.io/@denops/core)
 [![denoland](https://img.shields.io/github/v/release/vim-denops/deno-denops-core?logo=deno&label=denoland)](https://deno.land/x/denops_core)
 [![deno doc](https://doc.deno.land/badge.svg)](https://doc.deno.land/https/deno.land/x/denops_core/mod.ts)
 [![test](https://github.com/vim-denops/deno-denops/workflows/test/badge.svg)](https://github.com/vim-denops/deno-denops/actions?query=workflow%3Atest)
diff --git a/deno.jsonc b/deno.jsonc
index 99aba83..ccfcc3f 100644
--- a/deno.jsonc
+++ b/deno.jsonc
@@ -3,8 +3,14 @@
   "version": "0.0.0",
   "exports": "./mod.ts",
   "tasks": {
-    "test": "deno test -A --parallel --shuffle --doc --coverage=.coverage",
-    "check": "deno check ./**/*.ts",
-    "coverage": "deno coverage .coverage"
+    "check": "deno check **/*.ts",
+    "test": "deno test -A --parallel --shuffle --doc",
+    "test:coverage": "deno task test --coverage=.coverage",
+    "coverage": "deno coverage .coverage",
+    "update": "deno run --allow-env --allow-read --allow-write=. --allow-run=git,deno --allow-net=jsr.io,registry.npmjs.org jsr:@molt/cli ./*.ts",
+    "update:commit": "deno task -q update --commit --pre-commit=fmt,lint"
+  },
+  "imports": {
+    "https://deno.land/x/denops_core@$MODULE_VERSION/": "./"
   }
 }
diff --git a/denops.ts b/denops.ts
index e2b6aa6..18bfe25 100644
--- a/denops.ts
+++ b/denops.ts
@@ -138,3 +138,18 @@ export interface Denops {
    */
   dispatch(name: string, fn: string, ...args: unknown[]): Promise<unknown>;
 }
+
+/**
+ * Denops's entrypoint definition.
+ *
+ * Use this type to ensure the `main` function is properly implemented like
+ *
+ * ```ts
+ * import type { Entrypoint } from "https://deno.land/x/denops_core@$MODULE_VERSION/mod.ts";
+ *
+ * export const main: Entrypoint = (denops) => {
+ *   // ...
+ * }
+ * ```
+ */
+export type Entrypoint = (denops: Denops) => void | Promise<void>;
diff --git a/mod.ts b/mod.ts
index 463fc38..803fdbc 100644
--- a/mod.ts
+++ b/mod.ts
@@ -12,4 +12,10 @@
  */
 
 export { BatchError } from "./denops.ts";
-export type { Context, Denops, Dispatcher, Meta } from "./denops.ts";
+export type {
+  Context,
+  Denops,
+  Dispatcher,
+  Entrypoint,
+  Meta,
+} from "./denops.ts";