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+# How to Install
+
+Before installing, please ensure:
+
+* [Oh My Zsh](https://ohmyz.sh/) is installed.
+* Your current shell is **Zsh**.
+
+---
+
+## Install the Zsh Plugin
+
+In your terminal, run:
+
+```bash
+./install.sh
+```
+
+This script will install JVCS's Zsh support files locally and prepare the prompt segment definitions for use by your theme.
+
+---
+
+## Configure Your Zsh Theme
+
+Open your current Zsh theme file (e.g., `~/.oh-my-zsh/themes/xxx.zsh-theme`) and paste the following content in an appropriate location:
+
+```bash
+# ----------------------------------------------------- #
+# DISPLAY_LEVEL
+# FULL   = 127.0.0.1:25331/account/sheet
+# NORMAL =                 account/sheet
+# SHORT  =                         sheet
+JVCS_VIEW='NORMAL'
+
+# Customizable prompt segment elements
+JVCS_PREFIX='['
+JVCS_SPLIT='/'
+JVCS_SUFFIX=']'
+
+# JVCS_PROMPT_SEGMENT default style:
+# [your_account/your_sheet]
+
+# Append JVCS prompt segment
+PROMPT+='${JVCS_PROMPT_SEGMENT}'
+# ----------------------------------------------------- #
+```
+
+After saving, reload your terminal, or run:
+
+```bash
+source ~/.zshrc
+```
+
+---
+
+## Notes
+
+* `JVCS_VIEW` controls the view level displayed in the prompt.
+* `JVCS_PREFIX / SPLIT / SUFFIX` are used to customize the appearance.
+* `JVCS_PROMPT_SEGMENT` is only responsible for displaying the status and does not execute any logic.
+
+No further configuration is required.