diff --git a/internal/config/profiles_v3_test.go b/internal/config/profiles_v3_test.go
index 80c4464b2..3f1bbe27e 100644
--- a/internal/config/profiles_v3_test.go
+++ b/internal/config/profiles_v3_test.go
@@ -22,7 +22,7 @@ func TestProfileConfig_LegacyRoundTrip(t *testing.T) {
 
 	out, err := json.Marshal(p)
 	require.NoError(t, err)
-	require.JSONEq(t, src, string(out))
+	require.Equal(t, src, string(out))
 }
 
 // TestProfileConfig_V3FieldsParse pins that every v3 field round-trips and
diff --git a/internal/profile/glob.go b/internal/profile/glob.go
index 250f6178f..1a6e4fa37 100644
--- a/internal/profile/glob.go
+++ b/internal/profile/glob.go
@@ -19,9 +19,12 @@ type globMatcher struct {
 // compileGlob compiles a "server:tool" rule pattern into an anchored
 // matcher. The pattern is assumed already validated (config.ValidateProfiles,
 // FR-004) — an unparsable pattern here would be a validator bug, not a
-// runtime condition, so this never errors.
+// runtime condition, so this never errors. The (?s) flag makes '*' (".*")
+// match embedded newlines too: a tool identity is upstream-controlled text,
+// and without it a deny pattern like "github:delete*" would silently fail
+// open on "github:delete\nrepo".
 func compileGlob(pattern string) *globMatcher {
-	return &globMatcher{pattern: pattern, re: regexp.MustCompile("^" + globToRegexp(pattern) + "$")}
+	return &globMatcher{pattern: pattern, re: regexp.MustCompile("(?s)^" + globToRegexp(pattern) + "$")}
 }
 
 // globToRegexp renders pattern as an anchor-free regexp fragment: '*'
diff --git a/internal/profile/glob_test.go b/internal/profile/glob_test.go
index 7a012468a..60b580075 100644
--- a/internal/profile/glob_test.go
+++ b/internal/profile/glob_test.go
@@ -22,13 +22,16 @@ func TestGlobMatcher(t *testing.T) {
 		{"anchored: no partial prefix match", "github:list", "github:list_issues", false},
 		{"anchored: no partial suffix match", "github:issues", "github:list_issues", false},
 		{"case-sensitive", "github:List_Issues", "github:list_issues", false},
-		{"tool name containing a slash", "filesystem:read_text_file", "filesystem:read_text_file", true},
+		{"underscored tool name, exact", "filesystem:read_text_file", "filesystem:read_text_file", true},
+		{"tool name containing a slash, exact", "ns:sub/erase", "ns:sub/erase", true},
 		{"tool name containing a slash, glob", "ns:sub/*", "ns:sub/erase", true},
 		{"tool name containing double underscore (direct-surface alias shape)", "github:list__issues", "github:list__issues", true},
 		{"tool identity with an embedded colon (namespaced raw name)", "a:ns:erase", "a:ns:erase", true},
 		{"tool identity with an embedded colon, mismatch", "a:ns:erase", "a:ns:wipe", false},
 		{"literal dot is not a regex any-char wildcard", "github:v1.0-sync", "github:v1.0-sync", true},
 		{"literal dot near-miss: dot must match exactly, not any char", "github:v1.0-sync", "github:v1x0-sync", false},
+		{"star matches an embedded newline (deny rules must not fail open)", "github:delete*", "github:delete\nrepo", true},
+		{"leading star matches across a newline", "github:*repo", "github:delete\nrepo", true},
 		{"literal hyphen", "github:v1.0-sync", "github:v1.0_sync", false},
 	}
 	for _, tc := range cases {
diff --git a/internal/server/profiles_v3_node_fixture_test.go b/internal/server/profiles_v3_node_fixture_test.go
index 548447fc4..077416033 100644
--- a/internal/server/profiles_v3_node_fixture_test.go
+++ b/internal/server/profiles_v3_node_fixture_test.go
@@ -52,8 +52,11 @@ var wantNodeFixtureTools = map[string]wantNodeFixtureTool{
 
 // nodeFixtureFileTools is which tools each per-server file must contain, in
 // order (matches enforcementMatrixProfiles' upstream registration order in
-// profiles_v3_fixture_test.go, so the two fixtures never drift apart on
-// content even though they are read by different runtimes).
+// profiles_v3_fixture_test.go). Only the tool names and their order are kept
+// in step across the two fixtures; per-tool descriptions and annotation
+// shapes intentionally differ (the JSON files use description==name and a
+// single hint, the in-process fixture uses descriptive text and sets both
+// readOnlyHint and destructiveHint).
 var nodeFixtureFileTools = map[string][]string{
 	"github":     {"list_issues", "create_issue", "delete_repo", "search_code", "get_secret_scanning_alert"},
 	"notion":     {"update_page"},