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Document pre-sampling prefix context capture

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Rohit Arunachalam
2026-04-17 11:49:47 -07:00
parent 8e7b9a95d2
commit bf532c99f7
1 changed files with 5 additions and 0 deletions
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5
codex-rs/core/src/session/turn.rs
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@@ -160,6 +160,11 @@ pub(crate) async fn run_turn(
if pre_sampling_compacted && let Some(mut client_session) = prewarmed_client_session.take() {
client_session.reset_websocket_session();
}
// This pre-sampling kickoff captures full context before this turn records its
// context diff. If the candidate is later applied, that captured context can
// sit directly before a retained suffix that starts with the same turn's diff.
// This is redundant but intentional: we keep the suffix untouched and rely on
// the normal prefix/current-history match check before applying.
maybe_start_prefix_compact(
&sess,
&turn_context,