Use $CODEX_HOME instead

codex-rs/README.md

@@ -67,7 +67,7 @@ codex completion fish
 
 Save frequently used prompts as Markdown files and reuse them quickly from the slash menu.
 
-- Location: Put files in `~/.codex/prompts/` (create the folders if they don’t exist).
+- Location: Put files in `$CODEX_HOME/prompts/` (defaults to `~/.codex/prompts/`).
 - File type: Only Markdown files with the `.md` extension are recognized.
 - Name: The filename without the `.md` extension becomes the slash entry. For a file named `my-prompt.md`, type `/my-prompt`.
 - Content: The file contents are sent as your message when you select the item in the slash popup and press Enter.

codex-rs/core/src/codex.rs

@@ -1281,12 +1281,15 @@ async fn submission_loop(
                 let sub_id = sub.id.clone();
 
                 // Discover prompts under the default prompts dir (includes content).
-                let custom_prompts: Vec<CustomPrompt> = tokio::task::spawn_blocking(|| {
-                    let dir = crate::custom_prompts::default_prompts_dir();
-                    crate::custom_prompts::discover_prompts_in(&dir)
-                })
-                .await
-                .unwrap_or_default();
+                let custom_prompts: Vec<CustomPrompt> =
+                    tokio::task::spawn_blocking(
+                        || match crate::custom_prompts::default_prompts_dir() {
+                            Some(dir) => crate::custom_prompts::discover_prompts_in(&dir),
+                            None => Vec::new(),
+                        },
+                    )
+                    .await
+                    .unwrap_or_default();
 
                 let event = Event {
                     id: sub_id,

codex-rs/core/src/custom_prompts.rs

@@ -3,10 +3,12 @@ use std::collections::HashSet;
 use std::path::Path;
 use std::path::PathBuf;
 
-/// Return the default prompts directory: ~/.codex/prompts based on $HOME.
-pub fn default_prompts_dir() -> PathBuf {
-    let home = std::env::var("HOME").unwrap_or_else(|_| ".".to_string());
-    PathBuf::from(format!("{home}/.codex/prompts"))
+/// Return the default prompts directory: `$CODEX_HOME/prompts`.
+/// If `CODEX_HOME` cannot be resolved, returns `None`.
+pub fn default_prompts_dir() -> Option<PathBuf> {
+    crate::config::find_codex_home()
+        .ok()
+        .map(|home| home.join("prompts"))
 }
 
 /// Discover prompt files in the given directory, returning entries sorted by name.