diff --git a/plugins/pass-cli/README.md b/plugins/pass-cli/README.md
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--- /dev/null
+++ b/plugins/pass-cli/README.md
@@ -0,0 +1,11 @@
+# Proton Pass CLI plugin
+
+This plugin adds completions for [Proton Pass CLI](https://protonpass.github.io/pass-cli/).
+
+To use it, add `pass-cli` to the plugins array in your zshrc file:
+
+```zsh
+plugins=(... pass-cli)
+```
+
+This plugin does not add any aliases.
diff --git a/plugins/pass-cli/pass-cli.plugin.zsh b/plugins/pass-cli/pass-cli.plugin.zsh
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+++ b/plugins/pass-cli/pass-cli.plugin.zsh
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+# Autocompletion for Proton Pass CLI (pass-cli)
+if (( ! $+commands[pass-cli] )); then
+  return
+fi
+
+# If the completion file doesn't exist yet, we need to autoload it and
+# bind it to `pass-cli`. Otherwise, compinit will have already done that.
+if [[ ! -f "$ZSH_CACHE_DIR/completions/_pass-cli" ]]; then
+  typeset -g -A _comps
+  autoload -Uz _pass-cli
+  _comps[pass-cli]=_pass-cli
+fi
+
+pass-cli completions zsh >| "$ZSH_CACHE_DIR/completions/_pass-cli" &|