diff --git a/internal/analyze/lint_test.go b/internal/analyze/lint_test.go
index 09d0b73..6cc51cf 100644
--- a/internal/analyze/lint_test.go
+++ b/internal/analyze/lint_test.go
@@ -208,6 +208,8 @@ func TestWP001_CleanCases(t *testing.T) {
 		"testdata/wp001_clean.yaml",
 		"testdata/wp001_eventlist_clean.yaml",
 		"testdata/wp001_steplevel_clean.yaml",
+		"testdata/wp001_blockbranch_clean.yaml",
+		"testdata/wp001_blockpath_clean.yaml",
 	} {
 		if got := findingsFor(lintFixture(t, file), "WP001"); len(got) != 0 {
 			t.Errorf("%s: expected no WP001 finding, got %+v", file, got)
@@ -215,6 +217,57 @@ func TestWP001_CleanCases(t *testing.T) {
 	}
 }
 
+// TestWP001_BlockStyleScopingParsesAsScoped pins the PARSE, not just the
+// verdict (oleks/pipetree#22). WP001 staying quiet is necessary but not
+// sufficient: a parser that dropped `branch:` entirely would also produce a
+// bare push entry, which WP001 would then be right to flag - so silence alone
+// cannot distinguish "scoping understood" from "scoping lost". Assert the
+// constraint actually landed in the model.
+//
+// This is the exact shape that defeated the xonsh predecessor this linter
+// replaced (oleks/emmett#385): its key regex demanded a same-line value, so a
+// block-style `branch:` vanished from the entry and a correctly-scoped config
+// hard-failed the push. That check is now deleted (oleks/emmett 278a567),
+// leaving pipetree as the only thing standing between this bug class and
+// everyone's pre-push hook.
+func TestWP001_BlockStyleScopingParsesAsScoped(t *testing.T) {
+	for _, tc := range []struct {
+		file  string
+		field string
+		want  string
+	}{
+		{"testdata/wp001_blockbranch_clean.yaml", "branch", "main"},
+		{"testdata/wp001_blockpath_clean.yaml", "path", "src/**"},
+	} {
+		pl, err := parse.File(tc.file)
+		if err != nil {
+			t.Fatalf("parse.File(%s): %v", tc.file, err)
+		}
+
+		var pushConds []model.Condition
+		for _, c := range pl.When {
+			if c.Fields["event"] == "push" {
+				pushConds = append(pushConds, c)
+			}
+		}
+		if len(pushConds) != 1 {
+			t.Fatalf("%s: expected exactly 1 push condition, got %d (%+v)",
+				tc.file, len(pushConds), pl.When)
+		}
+
+		got, ok := pushConds[0].Fields[tc.field]
+		if !ok {
+			t.Errorf("%s: block-style %q was dropped from the push condition; "+
+				"fields were %+v", tc.file, tc.field, pushConds[0].Fields)
+			continue
+		}
+		if !strings.Contains(got, tc.want) {
+			t.Errorf("%s: push condition %q = %q, want it to contain %q",
+				tc.file, tc.field, got, tc.want)
+		}
+	}
+}
+
 // TestWP001_RemediationCarriesClass2Caveat is the constitution-V check in
 // test form (FR-002): the redundancy advice must never ship without the
 // warning about what that advice can create.
diff --git a/internal/analyze/testdata/README.md b/internal/analyze/testdata/README.md
index 3712a66..baf2623 100644
--- a/internal/analyze/testdata/README.md
+++ b/internal/analyze/testdata/README.md
@@ -18,6 +18,20 @@ naming a different rule, and one anchored to a line that has no finding.
 All four assert the fail-open contract — the finding survives and still
 blocks.
 
+The `wp001_block*_clean.yaml` pair pins BLOCK-style scoping — a `branch:` or
+`path:` whose list is indented under it rather than written inline as
+`[main]` (oleks/pipetree#22). Both spellings are the same YAML, so both must
+get the same verdict; they are separated here because the check pipetree
+replaced got exactly this wrong (oleks/emmett#385), and since that check was
+deleted (oleks/emmett 278a567) pipetree is the only remaining guard.
+
+Note these two are pinned by `TestWP001_BlockStyleScopingParsesAsScoped`, not
+only by the `_clean` verdict. Rule silence alone cannot distinguish "scoping
+understood" from "scoping lost": a parser that drops the value still leaves
+the `branch` KEY in the condition, so WP001 sees a non-`event` key and stays
+quiet either way. Verified by mutation — a deliberately style-sensitive
+parser leaves every other WP001 test passing and fails only that one.
+
 Class-2 fixtures are a *pair of files*, because the rules are pure
 functions of `(model, protection data)`: a config directory plus a JSON
 snapshot of what the Gitea API returns for
diff --git a/internal/analyze/testdata/wp001_blockbranch_clean.yaml b/internal/analyze/testdata/wp001_blockbranch_clean.yaml
new file mode 100644
index 0000000..39e91af
--- /dev/null
+++ b/internal/analyze/testdata/wp001_blockbranch_clean.yaml
@@ -0,0 +1,24 @@
+# Same scoping as wp001_clean.yaml, written as a BLOCK-style list instead of
+# the flow-style `branch: [main]`. The two spellings are the same YAML, so
+# they must get the same verdict: quiet.
+#
+# This is the shape that broke the xonsh predecessor (oleks/emmett#385). Its
+# key regex required a value on the SAME line as the key, so a `branch:` whose
+# value lives on the following lines never entered the entry's key set, the
+# entry read as bare, and a correctly-scoped config got a hard-failing false
+# positive. pipetree is now the sole guard for this class (the xonsh check was
+# deleted in oleks/emmett 278a567), so the style is pinned here deliberately.
+#
+# Modelled on the real config that surfaced it: ~/projects/gitea-mcp.
+when:
+  - event: pull_request
+  - event: push
+    branch:
+      - main
+  - event: tag
+
+steps:
+  - name: unit
+    image: alpine
+    commands:
+      - echo running unit tests
diff --git a/internal/analyze/testdata/wp001_blockpath_clean.yaml b/internal/analyze/testdata/wp001_blockpath_clean.yaml
new file mode 100644
index 0000000..f980bea
--- /dev/null
+++ b/internal/analyze/testdata/wp001_blockpath_clean.yaml
@@ -0,0 +1,19 @@
+# Block-style `path:` scoping — the other key WP001 accepts as narrowing, and
+# the other half of oleks/emmett#385's blind spot. Multi-item on purpose: a
+# single-element block list can be parsed correctly by accident (first item
+# wins), a two-element one cannot.
+#
+# Must stay quiet: the push entry is scoped, so it is not the same check
+# running twice on the same commit.
+when:
+  - event: push
+    path:
+      - src/**
+      - internal/**
+  - event: pull_request
+
+steps:
+  - name: unit
+    image: alpine
+    commands:
+      - echo running unit tests
diff --git a/internal/oracle/testdata/verdicts.json b/internal/oracle/testdata/verdicts.json
index 4a35544..36eb1b2 100644
--- a/internal/oracle/testdata/verdicts.json
+++ b/internal/oracle/testdata/verdicts.json
@@ -29,6 +29,18 @@
     "steps": 1,
     "has_when": true
   },
+  {
+    "file": "../analyze/testdata/wp001_blockbranch_clean.yaml",
+    "valid": true,
+    "steps": 1,
+    "has_when": true
+  },
+  {
+    "file": "../analyze/testdata/wp001_blockpath_clean.yaml",
+    "valid": true,
+    "steps": 1,
+    "has_when": true
+  },
   {
     "file": "../analyze/testdata/wp001_clean.yaml",
     "valid": true,