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## Why Phase 2 still needs to choose the most relevant stage-1 memory outputs by usage and recency, but exposing that ranking as the rendered `raw_memories.md` order creates unnecessary large diff. Usage-count or timestamp changes can reshuffle otherwise unchanged memories, making the workspace diff noisy and giving the consolidation prompt a misleading recency signal from file position. This fix will reduce token consumption ## What Changed - Keep the existing top-N Phase 2 selection ranking by `usage_count`, `last_usage`, `source_updated_at`, and `thread_id`. - Return the selected rows in stable ascending `thread_id` order before syncing Phase 2 filesystem inputs. - Update the memory README, raw memories header, and consolidation prompt so they describe the stable order and tell the prompt to use metadata and workspace diffs instead of file order as the recency signal. - Adjust the memory runtime tests to use deterministic thread IDs and assert the stable return order separately from the ranked selection semantics. ## Test Coverage - Existing memory runtime tests in `codex-rs/state/src/runtime/memories.rs` now cover the stable returned ordering for Phase 2 inputs. --------- Co-authored-by: Codex <noreply@openai.com>