diff --git a/.taskid b/.taskid
index 674daa1..b053605 100644
--- a/.taskid
+++ b/.taskid
@@ -1 +1 @@
-DEVX-7
+DEVX-8
diff --git a/src/devx/ci/classify_changes.py b/src/devx/ci/classify_changes.py
index 6e62e23..21f2957 100644
--- a/src/devx/ci/classify_changes.py
+++ b/src/devx/ci/classify_changes.py
@@ -271,19 +271,28 @@ DEFAULT_INFRASTRUCTURE: list[str] = [
     # Build tooling
     "Makefile",
     "cliff.toml",
+    "uv.lock",
     # Linting / formatting config
     ".pre-commit-config.yaml",
     ".ruff.toml",
     ".ansible-lint",
+    ".checkmake.ini",
+    ".editorconfig",
     # Environment templates (not the actual .env which is gitignored)
     ".env.example",
     # Git config
     ".gitignore",
+    ".gitattributes",
     # Project-level documentation (not part of the installed package)
     "AGENTS.md",
     "README.md",
     "CHANGELOG.md",
     "TROUBLESHOOTING.md",
+    "CONTRIBUTING.md",
+    "CODE_OF_CONDUCT.md",
+    "REVIEW_CHECKLIST.md",
+    # Agent/CI tooling config (not part of the installed package)
+    ".devin/**",
     # Generated venv activation scripts (created by `make setup`)
     "activate.sh",
     "activate.fish",
diff --git a/tests/unit/test_classify_changes.py b/tests/unit/test_classify_changes.py
index b9b5a12..efabf58 100644
--- a/tests/unit/test_classify_changes.py
+++ b/tests/unit/test_classify_changes.py
@@ -178,6 +178,39 @@ class TestClassifierConfig:
         assert "tests/**" in DEFAULT_INFRASTRUCTURE
         assert "docs/**" in DEFAULT_INFRASTRUCTURE
 
+    def test_default_infrastructure_covers_common_project_files(self) -> None:
+        """DEFAULT_INFRASTRUCTURE must cover common project-level files
+        that are not part of the installed package.
+
+        This test prevents regression of the root cause of GRM-64
+        misclassification: 28 files (scripts/**, REVIEW_CHECKLIST.md)
+        were classified as user-facing because these patterns were
+        missing from the defaults.
+        """
+        # Project documentation
+        assert "AGENTS.md" in DEFAULT_INFRASTRUCTURE
+        assert "README.md" in DEFAULT_INFRASTRUCTURE
+        assert "CHANGELOG.md" in DEFAULT_INFRASTRUCTURE
+        assert "TROUBLESHOOTING.md" in DEFAULT_INFRASTRUCTURE
+        assert "CONTRIBUTING.md" in DEFAULT_INFRASTRUCTURE
+        assert "CODE_OF_CONDUCT.md" in DEFAULT_INFRASTRUCTURE
+        assert "REVIEW_CHECKLIST.md" in DEFAULT_INFRASTRUCTURE
+        # Build tooling
+        assert "Makefile" in DEFAULT_INFRASTRUCTURE
+        assert "cliff.toml" in DEFAULT_INFRASTRUCTURE
+        assert "uv.lock" in DEFAULT_INFRASTRUCTURE
+        # Lint config
+        assert ".pre-commit-config.yaml" in DEFAULT_INFRASTRUCTURE
+        assert ".ruff.toml" in DEFAULT_INFRASTRUCTURE
+        assert ".ansible-lint" in DEFAULT_INFRASTRUCTURE
+        assert ".checkmake.ini" in DEFAULT_INFRASTRUCTURE
+        assert ".editorconfig" in DEFAULT_INFRASTRUCTURE
+        # Git config
+        assert ".gitignore" in DEFAULT_INFRASTRUCTURE
+        assert ".gitattributes" in DEFAULT_INFRASTRUCTURE
+        # Agent config
+        assert ".devin/**" in DEFAULT_INFRASTRUCTURE
+
 
 # ---------------------------------------------------------------------------
 # ChangeClassifier tests