diff --git a/packages/coding-agent/CHANGELOG.md b/packages/coding-agent/CHANGELOG.md
index c49128e3..88c189c7 100644
--- a/packages/coding-agent/CHANGELOG.md
+++ b/packages/coding-agent/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## [Unreleased]
 
+### Added
+
+- Session picker (`pi -r`) and `--session` flag now support searching/resuming by session ID (UUID prefix) ([#495](https://github.com/badlogic/pi-mono/issues/495) by [@arunsathiya](https://github.com/arunsathiya))
+
 ### Fixed
 
 - Queued steering/follow-up messages no longer wipe unsent editor input ([#503](https://github.com/badlogic/pi-mono/pull/503) by [@tmustier](https://github.com/tmustier))
diff --git a/packages/coding-agent/README.md b/packages/coding-agent/README.md
index c975fbf0..9f654749 100644
--- a/packages/coding-agent/README.md
+++ b/packages/coding-agent/README.md
@@ -459,8 +459,11 @@ pi -r              # Short form
 pi --no-session    # Ephemeral mode (don't save)
 
 pi --session /path/to/file.jsonl  # Use specific session file
+pi --session a8ec1c2a             # Resume by session ID (partial UUID)
 ```
 
+**Resuming by session ID:** The `--session` flag accepts a session UUID (or prefix). Session IDs are visible in filenames under `~/.pi/agent/sessions/<project>/` (e.g., `2025-12-13T17-47-46-817Z_a8ec1c2a-5a5f-4699-88cb-03e7d3cb9292.jsonl`). The UUID is the part after the underscore. You can also search by session ID in the `pi -r` picker.
+
 ### Context Compaction
 
 Long sessions can exhaust context windows. Compaction summarizes older messages while keeping recent ones.