diff --git a/README.md b/README.md
index 798bafc..15b23e6 100644
--- a/README.md
+++ b/README.md
@@ -41,6 +41,9 @@ The package gate executes:
   source before running any archived verifier or tests; release-manifest hashes
   are checked when present, and the input binding is checked again at the end;
 - all repository and subatomic tests against separate clean wheel and source installs;
+- the current collected test inventory, with every test completing successfully,
+  no skips, and matching JUnit counts; the historical release's 209-test count
+  is not imposed on newer source revisions;
 - complete installed-distribution byte maps, import origins, exact UCNS source maps,
   and complete source snapshots before and after each replay;
 - the preregistered molecular comparison, requiring all 14 current standings (including the original four) to remain `FALSIFIED`;
@@ -73,6 +76,10 @@ output directories. The replay gate records the exact source and artifact bindin
 in `candidate-source.json`; a stale or incomplete sdist is rejected before its
 code can run. Source distributions include every tracked repository file,
 including CI definitions and the complete local operational skill snapshot.
+When adding a root `epac_*.py` module, add it to `tool.setuptools.py-modules`;
+the archive-coverage gate rejects omitted modules. Current candidates also
+package `epac_atomic_derivation` and `epac_b_derivation`; the immutable v0.1.0
+release retains its original bytes.
 
 ```bash
 python -m pip install uv==0.11.18
diff --git a/pyproject.toml b/pyproject.toml
index 507f77c..e08ee5b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -19,7 +19,7 @@ test = ["pytest==9.1.1"]
 build = ["build==1.5.0", "twine==7.0.0", "setuptools==84.0.0", "wheel==0.48.0"]
 
 [tool.setuptools]
-py-modules = ["epac_evidence_cache", "epac_atomic", "epac_comparison", "epac_dimensional_arity", "epac_molecular", "epac_periodic", "epac_public_gonol", "epac_ucns_provenance", "epac_boundary_minimal_refinement", "epac_boundary_nondegeneracy", "epac_boundary_probe_completeness", "epac_boundary_quotient", "epac_cross_scale_closure"]
+py-modules = ["epac_evidence_cache", "epac_atomic", "epac_atomic_derivation", "epac_b_derivation", "epac_comparison", "epac_dimensional_arity", "epac_molecular", "epac_periodic", "epac_public_gonol", "epac_ucns_provenance", "epac_boundary_minimal_refinement", "epac_boundary_nondegeneracy", "epac_boundary_probe_completeness", "epac_boundary_quotient", "epac_cross_scale_closure"]
 packages = ["epac_data", "epac_subatomic", "epac_viz"]
 package-dir = {epac_data = "data", epac_subatomic = "subatomic", epac_viz = "viz"}
 
diff --git a/tests/test_distribution_replay.py b/tests/test_distribution_replay.py
index d13d02a..5c6c580 100644
--- a/tests/test_distribution_replay.py
+++ b/tests/test_distribution_replay.py
@@ -6,6 +6,13 @@
 #   requires: python3, bash
 #   mutates: temporary fixture archives, virtual environment, and installer trace
 #   cleanup: temporary directory context removes all fixture state
+#
+# id: check_epac_complete_test_evidence
+#   proves: epac_installation_replays_independently
+#   call: self::test_installed_replay_requires_complete_test_evidence
+#   requires: python3
+#   mutates: filesystem
+#   cleanup: temporary directory context removes fixture state
 # === END CHECKS ===
 from pathlib import Path
 import io
@@ -25,6 +32,44 @@
 from unittest.mock import patch
 
 
+def test_installed_replay_requires_complete_test_evidence():
+    """Usage: pytest tests/test_distribution_replay.py; exercise false-green receipts."""
+    path = Path(__file__).resolve().parents[1] / "tools/verify_installed.py"
+    spec = importlib.util.spec_from_file_location("epac_installed_fixture", path)
+    verifier = importlib.util.module_from_spec(spec)
+    spec.loader.exec_module(verifier)
+    import pytest
+    from _pytest.subtests import SubtestReport, SubtestContext
+    inventory = verifier.TestInventory()
+    parent = pytest.TestReport("a", ("test.py", 0, "a"), {}, "passed", None, "call")
+    subtest = SubtestReport("a", ("test.py", 0, "a"), {}, "passed", None, "call")
+    subtest.context = SubtestContext(msg=None, kwargs={"case": 1})
+    inventory.pytest_runtest_logreport(subtest)
+    inventory.pytest_runtest_logreport(parent)
+    assert inventory.passed == ["a"]
+    with TemporaryDirectory() as directory:
+        xml = Path(directory) / "results.xml"
+        good = '<testsuite tests="2" failures="0" errors="0" skipped="0"><testcase name="a"/><testcase name="b"/></testsuite>'
+        xml.write_text(good, encoding="utf-8")
+        assert verifier.verify_test_evidence(xml, ["a", "b"], ["a", "b"]) == 2
+        for collected, passed, report in (
+            ([], [], good),
+            (["a", "b"], ["a"], good),
+            (["a", "a"], ["a", "a"], good),
+            (["a", "b"], ["a", "b"], good.replace('tests="2"', 'tests="3"')),
+            (["a", "b"], ["a", "b"], good.replace('failures="0"', 'failures="1"')),
+            (["a", "b"], ["a", "b"], good.replace('<testcase name="b"/>', '')),
+            (["a", "b"], ["a", "b"], good.replace('<testcase name="b"/>', '<testcase name="b"><skipped/></testcase>')),
+        ):
+            xml.write_text(report, encoding="utf-8")
+            try:
+                verifier.verify_test_evidence(xml, collected, passed)
+            except AssertionError:
+                pass
+            else:
+                raise AssertionError("incomplete test evidence accepted")
+
+
 def _write_fixture_dist(dist, contents, wheel_payload):
     info = "interdependency_epac-0.1.0.dist-info/"
     payload = dict(wheel_payload)
diff --git a/tests/test_verify_installed_junit.py b/tests/test_verify_installed_junit.py
new file mode 100644
index 0000000..feb096d
--- /dev/null
+++ b/tests/test_verify_installed_junit.py
@@ -0,0 +1,39 @@
+"""Regression coverage for pytest subtest accounting in installed replay evidence."""
+from importlib.util import module_from_spec, spec_from_file_location
+from pathlib import Path
+
+import pytest
+
+
+VERIFIER_PATH = Path(__file__).resolve().parents[1] / "tools" / "verify_installed.py"
+SPEC = spec_from_file_location("epac_installed_junit_fixture", VERIFIER_PATH)
+VERIFIER = module_from_spec(SPEC)
+SPEC.loader.exec_module(VERIFIER)
+
+
+def _write_xml(path, tests):
+    path.write_text(
+        f'<testsuite tests="{tests}" failures="0" errors="0" skipped="0">'
+        '<testcase name="a"/><testcase name="b"/></testsuite>',
+        encoding="utf-8",
+    )
+
+
+def test_junit_total_accepts_explicit_successful_subtest_count(tmp_path):
+    xml = tmp_path / "results.xml"
+    _write_xml(xml, 3)
+    assert VERIFIER.verify_test_evidence(xml, ["a", "b"], ["a", "b"], passed_subtests=1) == 2
+
+
+def test_junit_total_rejects_unexplained_extra_results(tmp_path):
+    xml = tmp_path / "results.xml"
+    _write_xml(xml, 3)
+    with pytest.raises(AssertionError, match="aggregate"):
+        VERIFIER.verify_test_evidence(xml, ["a", "b"], ["a", "b"], passed_subtests=0)
+
+
+def test_junit_total_rejects_inflated_subtest_claim(tmp_path):
+    xml = tmp_path / "results.xml"
+    _write_xml(xml, 3)
+    with pytest.raises(AssertionError, match="aggregate"):
+        VERIFIER.verify_test_evidence(xml, ["a", "b"], ["a", "b"], passed_subtests=2)
diff --git a/tools/verify_installed.py b/tools/verify_installed.py
index 094e530..d8d7eb1 100644
--- a/tools/verify_installed.py
+++ b/tools/verify_installed.py
@@ -38,6 +38,44 @@
 import zipfile
 
 
+class TestInventory:
+    """Bind successful calls and successful subtests to this pytest run."""
+
+    def __init__(self):
+        self.collected = []
+        self.passed = []
+        self.passed_subtests = 0
+
+    def pytest_collection_finish(self, session):
+        self.collected = [item.nodeid for item in session.items]
+
+    def pytest_runtest_logreport(self, report):
+        import pytest
+        if report.when != "call" or not report.passed:
+            return
+        if type(report) is pytest.TestReport:
+            self.passed.append(report.nodeid)
+        elif type(report).__name__ == "SubtestReport":
+            self.passed_subtests += 1
+
+
+def verify_test_evidence(xml_path, collected, passed, passed_subtests=0):
+    """Reject empty, partial, duplicate, skipped or contradictory test evidence."""
+    assert collected and len(set(collected)) == len(collected), "empty or duplicate test inventory"
+    assert passed == collected, "successful calls differ from complete test inventory"
+    root = ET.parse(xml_path).getroot()
+    cases = list(root.iter("testcase"))
+    assert len(cases) == len(collected), "JUnit inventory differs from collected tests"
+    assert not any(c.find(tag) is not None for c in cases for tag in ("skipped", "failure", "error"))
+    suites = list(root.iter("testsuite"))
+    leaf_suites = [suite for suite in suites if not any(child.tag == "testsuite" for child in suite)]
+    assert leaf_suites, "JUnit evidence contains no test suite"
+    reported_tests = sum(int(suite.attrib["tests"]) for suite in leaf_suites)
+    assert reported_tests == len(cases) + passed_subtests, "JUnit aggregate differs from parent tests plus successful subtests"
+    for suite in suites:
+        assert all(int(suite.attrib[tag]) == 0 for tag in ("failures", "errors", "skipped"))
+    return len(cases)
+
 
 EXPECTED_STANDINGS = {
     "atomic_shells_as_sealed_shape_prediction": "FALSIFIED",
@@ -123,10 +161,10 @@ def payload():
                                         dependencies=(ucns.public_gonol_function, ucns.native_mobius_state))
     assert identity == epac_public_gonol.PINNED_UCNS_COMMIT
     xml_path = receipt_path.with_suffix(".xml")
-    result = pytest.main([str(source / "tests"), "--junitxml=" + str(xml_path), "-q", "-x", "-p", "no:cacheprovider", "-o", "xfail_strict=true"])
+    inventory = TestInventory()
+    result = pytest.main([str(source / "tests"), "--junitxml=" + str(xml_path), "-q", "-x", "-p", "no:cacheprovider", "-o", "xfail_strict=true"], plugins=[inventory])
     assert result == 0, result
-    cases = list(ET.parse(xml_path).getroot().iter("testcase"))
-    assert len(cases) == 209 and not any(c.find(tag) is not None for c in cases for tag in ("skipped", "failure", "error"))
+    test_count = verify_test_evidence(xml_path, inventory.collected, inventory.passed, inventory.passed_subtests)
     assert payload() == before
     origins = {name: str(Path(module.__file__).resolve()) for name, module in sys.modules.items()
                if name.startswith("epac_") and getattr(module, "__file__", None)}
@@ -139,8 +177,8 @@ def payload():
     receipt = {"artifact_kind": artifact_kind, "artifact_sha256": artifact_digest, "artifact_name": artifact.name, "schema": "epac.installed-replay", "version": 1, "status": "passed", "python": sys.version,
                "verifier_sha256": hashlib.sha256(verifier_bytes).hexdigest(), "source_files_sha256": archived_inputs, "outcomes_xml_sha256": hashlib.sha256(xml_path.read_bytes()).hexdigest(),
                "wheel_sha256": hashlib.sha256(wheel.read_bytes()).hexdigest(), "ucns_source_commit": identity,
-               "installed_payload_sha256": immutable, "installed_distribution_sha256": before, "imported_origins": origins, "tests": len(cases),
-               "skips": 0, "comparison_standings": standings, "empirical_status_transfer": False}
+               "installed_payload_sha256": immutable, "installed_distribution_sha256": before, "imported_origins": origins, "tests": test_count, "test_inventory": inventory.collected,
+               "successful_subtests": inventory.passed_subtests, "skips": 0, "comparison_standings": standings, "empirical_status_transfer": False}
     receipt_path.write_text(json.dumps(receipt, indent=2, sort_keys=True) + "\n")