Codecov Report

✅ All modified and coverable lines are covered by tests.

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💡 Codex Review

Remove hard-coded graph cache path from best configs

The new graph.cache_dir value is pinned to /home/mbarbaux/scratch/ModSSC/cache/graphs, which makes graph-enabled benchmark configs fail on machines where that user path is missing or not writable (a common case for non-root users and CI runners). This commit introduced that absolute path into many best configs, replacing the previous behavior where graph caching used the library default location; these experiments can now abort with permission/path errors unless users manually edit every config.

Fail fast on unresolved env placeholders in YAML

os.path.expandvars leaves unknown variables unchanged, so when MODSSC_OUTPUT_DIR/MODSSC_DATASET_CACHE_DIR/MODSSC_PREPROCESS_CACHE_DIR are not exported, placeholders like ${MODSSC_OUTPUT_DIR} silently survive and become literal directory names. Because this commit switched many benchmark configs to those placeholders, runs now quietly write to unintended paths instead of using prior defaults, which makes cache/output placement unreliable and hard to diagnose.