diff --git a/codex-rs/session/src/lib.rs b/codex-rs/session/src/lib.rs
index 027da4aedd..6ebacae0b0 100644
--- a/codex-rs/session/src/lib.rs
+++ b/codex-rs/session/src/lib.rs
@@ -6,10 +6,10 @@
 //! the binary can stay small and unit tests can call into pure Rust APIs.
 
 pub mod build;
-pub mod cli; // public so main.rs can access it.
-pub mod meta; // richer on-disk metadata envelope
-mod spawn; // process creation helpers
-pub mod store; // on-disk bookkeeping (public for tests) // build-time information helpers
+pub mod cli;
+pub mod meta;
+mod spawn;
+pub mod store;
 
 pub use cli::Cli;
 
diff --git a/codex-rs/session/src/meta.rs b/codex-rs/session/src/meta.rs
index 95ae50c823..1522b543cb 100644
--- a/codex-rs/session/src/meta.rs
+++ b/codex-rs/session/src/meta.rs
@@ -17,7 +17,7 @@ use crate::store::SessionKind;
 
 /// JSON envelope version.  Bump when the structure changes in a
 /// backwards-incompatible way.
-pub const CURRENT_VERSION: u8 = 2;
+pub const CURRENT_VERSION: u8 = 1;
 
 /// Persisted session metadata.
 #[derive(Debug, Serialize, Deserialize)]