diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 25fa841..7a9a0fd 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -1,9 +1,15 @@
 name: CI
 on:
   push:
+    paths-ignore:
+      - README.md
+      - '.github/workflows/github-pages.yml'
     branches:
       - master
   pull_request:
+    paths-ignore:
+      - README.md
+      - '.github/workflows/github-pages.yml'
     branches:
       - master
 
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..0a87dd7
--- /dev/null
+++ b/README.md
@@ -0,0 +1,89 @@
+# msg-tool
+
+msg-tool is a command-line tool for exporting, importing, packing, and unpacking script files.
+
+## How to Compile
+
+```bash
+git clone https://github.com/lifegpc/msg-tool
+cargo build --release  # Build with all features enabled
+cargo build --release --no-default-features --features=circus  # Build with only specific features enabled. See supported types below.
+```
+
+## Basic Usage
+### Extract messages from script files
+```bash
+msg-tool export <input> [output]
+```
+Some script files cannot be detected automatically. You can specify the type of script file with the `--script-type` / `-t` option.
+```bash
+msg-tool export -t <script-type> <input> [output]
+```
+If the script file is an image file, you can specify the output type of the image file with the `--image-type` / `-i` option.
+```bash
+msg-tool export -i webp <input> [output]
+```
+If the script file is an archive file, it will be unpacked and will try to extract messages/images/audio from the unpacked files. If you don't want to extract, please use the `unpack` command.
+
+If the input is a directory, all script files in the directory will be processed. (The `-r` / `--recursive` option is needed if you want to process files in subdirectories.)
+
+### Import data to script files
+```bash
+msg-tool import <input> <output> <patched>
+```
+
+
+### Pack files into an archive
+```bash
+msg-tool pack <input> -t <archive-type> [output]
+```
+
+### Unpack an archive file
+```bash
+msg-tool unpack <input> [output]
+```
+Some archive files cannot be detected automatically. You can specify the type of archive file with the `--script-type` / `-t` option.
+
+### Create a new script file
+```bash
+msg-tool create -t <script-type> <input> <output>
+```
+
+## Supported Output Script Types
+- `json` - [GalTransl](https://github.com/GalTransl/GalTransl)'s JSON format
+- `m3t` - A simple text format that supports both original/llm/translated messages.
+
+## Supported Image Types
+| Image Type | Feature Name |
+|---|---|
+| `png` | `image` (enabled automatically if any image script types are enabled) |
+| `jpg` | `image-jpg` |
+| `webp` | `image-webp` |
+
+## Supported Script Types
+### Artemis Engine
+| Script Type | Feature Name | Name | Export | Import | Custom Export | Custom Import | Create | Remarks |
+|---|---|---|---|---|---|---|---|---|
+| `artemis` | `artemis` | Artemis Engine AST file (.ast) | ✔️ | ✔️ | ❌ | ❌ | ❌ | |
+| `artemis-asb` | `artemis` | Artemis Engine ASB file (.asb) | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | |
+
+| Archive Type | Feature Name | Name | Unpack | Pack | Remarks |
+|---|---|---|---|---|---|
+| `artemis-arc`/`pfs` | `artemis-arc` | Artemis Engine archive file (.pfs) | ✔️ | ✔️ | `pf2` is not supported now |
+### Buriko General Interpreter / Ethornell
+| Script Type | Feature Name | Name | Export | Import | Custom Export | Custom Import | Create | Remarks |
+|---|---|---|---|---|---|---|---|---|
+| `bgi`/`ethornell` | `bgi` | Buriko General Interpreter/Ethornell Script | ✔️ | ✔️ | ❌ | ❌ | ❌ | Some old games' scripts cannot be detected automatically |
+| `bgi-bsi`/`ethornell-bsi` | `bgi` | Buriko General Interpreter/Ethornell BSI Script (._bsi) | ❌ | ❌ | ✔️ | ✔️ | ✔️ | |
+| `bgi-bp`/`ethornell-bp` | `bgi` | Buriko General Interpreter/Ethornell BP Script (._bp) | ✔️ | ✔️ | ❌ | ❌ | ❌ | |
+| `bgi-dsc`/`ethornell-dsc` | `bgi-arc` | Buriko General Interpreter/Ethornell compressed file in archive | ❌ | ❌ | ✔️ | ✔️ | ✔️ | |
+
+| Archive Type | Feature Name | Name | Unpack | Pack | Remarks |
+|---|---|---|---|---|---|
+| `bgi-arc-v1`/`ethornell-arc-v1` | `bgi-arc` | Buriko General Interpreter/Ethornell Archive File Version 1 (.arc) | ✔️ | ✔️ | |
+| `bgi-arc`/`bgi-arc-v2`/`ethornell-arc`/`ethornell-arc-v2` | `bgi-arc` | Buriko General Interpreter/Ethornell Archive File Version 2 (.arc) | ✔️ | ✔️ | |
+
+| Image Type | Feature Name | Name | Export | Import | Export Multiple | Import Multiple | Create | Remarks |
+|---|---|---|---|---|---|---|---|---|
+| `bgi-img`/`ethornell-img` | `bgi-img` | Buriko General Interpreter/Ethornell Uncompressed Image File | ✔️ | ✔️ | ❌ | ❌ | ✔️ | Image files in `sysgrp.arc` |
+| `bgi-cbg`/`ethornell-cbg` | `bgi-img` | Buriko General Interpreter/Ethornell Compressed Image File | ✔️ | ❌  | ❌ | ❌ | ❌  | |