diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 3adf4115..efd2154a 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -65,10 +65,10 @@ jobs:
           ruff check .
           pyright
           python -c "import fastapi, httpx, mcp, multipart, pydantic, uvicorn"
-          ENGRAPHIS_INDEX_ROOTS="${GITHUB_WORKSPACE}:${RUNNER_TEMP}" python -m pytest -o addopts="" tests/ -q -rs --basetemp="${RUNNER_TEMP}/engraphis-pytest"
-          ENGRAPHIS_INDEX_ROOTS="${GITHUB_WORKSPACE}:${RUNNER_TEMP}" python -m pytest -o addopts="" tests/test_public_research_boundary.py -q --basetemp="${RUNNER_TEMP}/engraphis-pytest"
-          ENGRAPHIS_INDEX_ROOTS="${GITHUB_WORKSPACE}:${RUNNER_TEMP}" python -m pytest -o addopts="" tests/test_compact_recall.py tests/test_eval_performance.py -q --basetemp="${RUNNER_TEMP}/engraphis-pytest"
-          ENGRAPHIS_INDEX_ROOTS="${GITHUB_WORKSPACE}:${RUNNER_TEMP}" python -m pytest -o addopts="" tests/test_eval_harness.py tests/test_benchmark_evidence.py -q --basetemp="${RUNNER_TEMP}/engraphis-pytest"
+          ENGRAPHIS_INDEX_ROOTS="${GITHUB_WORKSPACE}:${RUNNER_TEMP}:$(python -c 'import tempfile; print(tempfile.gettempdir())')" python -m pytest -o addopts="" tests/ -q -rs --basetemp="${RUNNER_TEMP}/engraphis-pytest"
+          ENGRAPHIS_INDEX_ROOTS="${GITHUB_WORKSPACE}:${RUNNER_TEMP}:$(python -c 'import tempfile; print(tempfile.gettempdir())')" python -m pytest -o addopts="" tests/test_public_research_boundary.py -q --basetemp="${RUNNER_TEMP}/engraphis-pytest"
+          ENGRAPHIS_INDEX_ROOTS="${GITHUB_WORKSPACE}:${RUNNER_TEMP}:$(python -c 'import tempfile; print(tempfile.gettempdir())')" python -m pytest -o addopts="" tests/test_compact_recall.py tests/test_eval_performance.py -q --basetemp="${RUNNER_TEMP}/engraphis-pytest"
+          ENGRAPHIS_INDEX_ROOTS="${GITHUB_WORKSPACE}:${RUNNER_TEMP}:$(python -c 'import tempfile; print(tempfile.gettempdir())')" python -m pytest -o addopts="" tests/test_eval_harness.py tests/test_benchmark_evidence.py -q --basetemp="${RUNNER_TEMP}/engraphis-pytest"
           python -m eval.harness --dataset eval/datasets/sample.jsonl --k 5
           python -m eval.harness --dataset eval/datasets/codemem.jsonl --k 5
           python -m eval.ablation
@@ -306,7 +306,7 @@ jobs:
           if [ "${{ matrix.python-version }}" != "3.9" ]; then
             python -c "import fastapi, httpx, mcp, multipart, pydantic, uvicorn"
           fi
-          ENGRAPHIS_INDEX_ROOTS="${GITHUB_WORKSPACE}:${RUNNER_TEMP}" python -m pytest -o addopts="" tests/ -q -rs --basetemp="${RUNNER_TEMP}/engraphis-pytest"
+          ENGRAPHIS_INDEX_ROOTS="${GITHUB_WORKSPACE}:${RUNNER_TEMP}:$(python -c 'import tempfile; print(tempfile.gettempdir())')" python -m pytest -o addopts="" tests/ -q -rs --basetemp="${RUNNER_TEMP}/engraphis-pytest"
           python -m eval.harness --dataset eval/datasets/sample.jsonl --k 5
           python -m eval.harness --dataset eval/datasets/codemem.jsonl --k 5
           python -m eval.ablation