diff --git a/.gitignore b/.gitignore
index aaa3286..6c4893f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,4 @@
-
+.pi/
 /docs/
 spec/
 .claude/
diff --git a/src/tinymfv/data.py b/src/tinymfv/data.py
index 1066079..e1feafb 100644
--- a/src/tinymfv/data.py
+++ b/src/tinymfv/data.py
@@ -22,6 +22,7 @@ perspective bias (model judging others vs itself). The probe itself is
 a single JSON-pseudo-schema with the 7 foundations as enum options —
 not a binary wrong/accept frame.
 """
+
 from __future__ import annotations
 import json
 from pathlib import Path
diff --git a/src/tinymfv/eval.py b/src/tinymfv/eval.py
index 106b933..18e636d 100644
--- a/src/tinymfv/eval.py
+++ b/src/tinymfv/eval.py
@@ -413,7 +413,6 @@ def evaluate(
         "T": T,                # fitted temperature (>1 = model is overconfident)
         "top1_acc": top1_acc,
         "informedness": informedness,  # macro Youden's J, model vs human argmax, in [-1, 1]
-        "mean_pmass_format": mean_pmass_format,
         "mean_pmass_allowed": mean_pmass_allowed,
         "mean_nll_json": mean_nll_json,
         "info": info,