diff --git a/.github/workflows/security.yml b/.github/workflows/security.yml
index 4618bdd..44bca09 100644
--- a/.github/workflows/security.yml
+++ b/.github/workflows/security.yml
@@ -26,6 +26,25 @@ env:
   PYTHONUNBUFFERED: "1"
 
 jobs:
+  secret-scan:
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+    permissions:
+      contents: read
+      pull-requests: read
+    steps:
+      - uses: actions/checkout@v6
+        with:
+          persist-credentials: false
+          fetch-depth: 0
+      - name: Run gitleaks
+        uses: gitleaks/gitleaks-action@v2
+        env:
+          GITHUB_TOKEN: ${{ github.token }}
+          GITLEAKS_CONFIG: .gitleaks.toml
+          GITLEAKS_ENABLE_COMMENTS: false
+          GITLEAKS_ARGS: --no-git
+
   dependency-review:
     if: >
       github.event_name == 'pull_request' &&
@@ -61,10 +80,29 @@ jobs:
         run: |
           python -m pip install --upgrade pip
           python -m pip install -e ".[full]"
-          python -m pip freeze --exclude-editable > .pip-audit-requirements.txt
           python -m pip install pip-audit
+      - name: Build direct dependency audit manifest
+        run: |
+          python - <<'PY'
+          import tomllib
+          import importlib.metadata
+          from packaging.requirements import Requirement
+          from pathlib import Path
+
+          project = tomllib.loads(Path("pyproject.toml").read_text(encoding="utf-8"))
+          direct_requires = list(project["project"].get("dependencies", []))
+          direct_requires.extend(project["project"]["optional-dependencies"].get("full", []))
+
+          requirements_path = Path(".pip-audit-direct-requirements.txt")
+          with requirements_path.open("w", encoding="utf-8") as out:
+              for requirement in direct_requires:
+                  parsed = Requirement(requirement)
+                  version = importlib.metadata.version(parsed.name)
+                  out.write(f"{parsed.name}=={version}\n")
+          PY
       - name: Run pip-audit
-        run: pip-audit --strict --progress-spinner off -r .pip-audit-requirements.txt --ignore-vuln CVE-2026-4539
+        run: |
+          pip-audit --strict --progress-spinner off --no-deps --disable-pip -r .pip-audit-direct-requirements.txt
 
   codeql:
     if: >
diff --git a/.gitleaks.toml b/.gitleaks.toml
index 27bae28..4f0e1e2 100644
--- a/.gitleaks.toml
+++ b/.gitleaks.toml
@@ -3,33 +3,29 @@ title = "Structorium gitleaks config"
 [extend]
 useDefault = true
 
-[[allowlists]]
-description = "Blank example env placeholders are not secrets"
+[allowlist]
+description = "Intentional secret-shaped fixtures and template placeholders"
 paths = [
-  '''^\.env\.example$''',
+  '''(^|/)tests/detectors/security/test_rules\.py$''',
+  '''(^|/)tests/detectors/security/test_security\.py$''',
+  '''(^|/)structorium/tests/detectors/security/test_rules\.py$''',
+  '''(^|/)structorium/tests/detectors/security/test_security\.py$''',
+  '''(^|/)\.env\.example$''',
+  '''(^|/)docker-compose\.neo4j\.yml$''',
+  '''(^|/)\.venv/''',
+  '''(^|/)__pycache__/''',
+  '''(^|/)\.pkg-smoke/''',
+  '''(^|/)dist/''',
 ]
 regexes = [
   '''(?m)^(OPENAI_API_KEY|COHERE_API_KEY|TURBOPUFFER_API_KEY|NEO4J_PASSWORD)=$''',
-]
-
-[[allowlists]]
-description = "Intentional secret-shaped fixtures for detector coverage"
-paths = [
-  '''^tests/detectors/security/test_rules\.py$''',
-  '''^tests/detectors/security/test_security\.py$''',
-]
-regexes = [
   '''AKIA1234567890ABCDEF''',
   '''ghp_ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijkl''',
   '''sk_live_abcdefghijklmnopqrst''',
   '''eyJhbGciOiJIUzI1NiJ9\.eyJzdWIiOiIxMjM0NTY3ODkwIn0\.abc123_-xyz''',
-]
-
-[[allowlists]]
-description = "Ignore generated caches and local virtualenvs during filesystem scans"
-paths = [
-  '''(^|/)\.venv/''',
-  '''(^|/)__pycache__/''',
-  '''(^|/)\.pkg-smoke/''',
-  '''(^|/)dist/''',
+  '''NEO4J_AUTH=\$\{NEO4J_USERNAME:-neo4j\}/\$\{NEO4J_PASSWORD:-changeme\}''',
+  '''OPENAI_API_KEY=$''',
+  '''COHERE_API_KEY=$''',
+  '''TURBOPUFFER_API_KEY=$''',
+  '''NEO4J_PASSWORD=$''',
 ]