From e8fd08c800223ca3520cbdd8f82e23b686034bae Mon Sep 17 00:00:00 2001
From: Steven Enamakel <31011319+senamakel@users.noreply.github.com>
Date: Mon, 6 Apr 2026 19:46:15 -0700
Subject: [PATCH] feat(memory): use timestamp-prefixed document IDs for
 chronological sorting (#381)

Replace random UUID document IDs with `{unix_seconds}_{8char_hex}` format
so memory documents sort chronologically by filename and ID.
---
 src/openhuman/memory/store/unified/documents.rs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/openhuman/memory/store/unified/documents.rs b/src/openhuman/memory/store/unified/documents.rs
index 900730201..e9df68a20 100644
--- a/src/openhuman/memory/store/unified/documents.rs
+++ b/src/openhuman/memory/store/unified/documents.rs
@@ -27,7 +27,11 @@ impl UnifiedMemory {
         let document_id = input
             .document_id
             .or(existing_document_id)
-            .unwrap_or_else(|| Uuid::new_v4().to_string());
+            .unwrap_or_else(|| {
+                let ts = Self::now_ts() as u64;
+                let short = &Uuid::new_v4().to_string()[..8];
+                format!("{ts}_{short}")
+            });
         let now = Self::now_ts();
         let created_at = {
             let conn = self.conn.lock();