Function regenerate_cursor_memory_rule

src/hooks/memory_inject.rs:482–490

Regenerates the materialized Cursor memory rule for `root`, writing only when content changed (hash check) and only when the tracedecay Cursor plugin is installed and the target file is absent or tracedecay-generated. Workspaces without an initialized store still rewrite the managed rule to an empty placeholder so stale facts from another workspace cannot remain always-applied. Fail-open: returns

(root: &Path)

/// an empty placeholder so stale facts from another workspace cannot remain
/// always-applied. Fail-open: returns whether the file was (re)written.
pub async fn regenerate_cursor_memory_rule(root: &Path) -> bool {
    if !memory_injection_enabled() {
        return false;
    }
    let Some(home) = dirs::home_dir() else {
        return false;
    };
    regenerate_cursor_memory_rule_with_home(root, &home).await
}

async fn regenerate_cursor_memory_rule_with_home(root: &Path, home: &Path) -> bool {
    let rule_path = crate::agents::cursor::cursor_memory_rule_path(home);