diff --git a/lez/programs/loader/core/src/lib.rs b/lez/programs/loader/core/src/lib.rs
index 25968a5fe..1d58aecb9 100644
--- a/lez/programs/loader/core/src/lib.rs
+++ b/lez/programs/loader/core/src/lib.rs
@@ -43,9 +43,6 @@ impl From<&ProgramData> for Data {
 
 /// Derives the PDA seed for a deployed program's `ProgramData` account.
 ///
-/// Combines the program's content-derived identity (`image_id`), its position in a (currently
-/// always single-segment) split (`segment_number`), and who may redeploy it (`update_auth`).
-///
 /// Domain-separated from other PDA-seed derivations in the codebase so that a `deploy_pda_seed`
 /// output can never collide with a seed meant for a different purpose, even if the input triple
 /// happened to coincide.
diff --git a/test_programs/guest/src/bin/chained_call_forwarder.rs b/test_programs/guest/src/bin/chained_call_forwarder.rs
index b04fcf1ae..10486badb 100644
--- a/test_programs/guest/src/bin/chained_call_forwarder.rs
+++ b/test_programs/guest/src/bin/chained_call_forwarder.rs
@@ -1,13 +1,14 @@
+//! Forwards a single chained call to `target_program_id` with `instruction_data`, passing
+//! through whatever `pre_states` this program itself was invoked with unchanged.
+//!
+//! Exists purely as test infrastructure: lets a test exercise "program X invokes program Y via
+//! a chained call" for an arbitrary Y and instruction, without needing a purpose-built guest for
+//! every target program under test.
+
 use lee_core::program::{
     AccountPostState, ChainedCall, ProgramId, ProgramInput, ProgramOutput, read_lee_inputs,
 };
 
-/// Forwards a single chained call to `target_program_id` with `instruction_data`, passing
-/// through whatever `pre_states` this program itself was invoked with unchanged.
-///
-/// Exists purely as test infrastructure: lets a test exercise "program X invokes program Y via
-/// a chained call" for an arbitrary Y and instruction, without needing a purpose-built guest for
-/// every target program under test.
 type Instruction = (ProgramId, Vec<u32>);
 
 fn main() {