diff --git a/.claude/agents/codebase-agent.md b/.claude/agents/codebase-agent.md
index 5dd34c2..a83312b 100644
--- a/.claude/agents/codebase-agent.md
+++ b/.claude/agents/codebase-agent.md
@@ -255,6 +255,50 @@ Testing strategies:
    - All tests pass
    ```
 
+## Self-Review Protocol
+
+Before presenting work, perform a self-review by switching perspective to act as a reviewer:
+
+### Self-Review Checklist
+
+1. **Edge Cases Considered?**
+   - Null/empty inputs
+   - Boundary conditions
+   - Error states
+
+2. **Security Issues Addressed?**
+   - Input validation at boundaries
+   - Sanitization applied
+   - No hardcoded secrets
+
+3. **Error Handling Complete?**
+   - Exceptions caught appropriately
+   - User-friendly error messages
+   - Rollback on failure
+
+4. **Assumptions Clearly Stated?**
+   - Document non-obvious decisions
+   - Note limitations
+
+### Self-Review Process
+
+```text
+1. Complete implementation
+2. Switch perspective: "As a reviewer, what would I flag?"
+3. Check each item in checklist above
+4. Fix any issues found
+5. If significant fix made, note: "Self-review: Fixed [issue]"
+6. Maximum 2 self-review iterations to prevent infinite loops
+```
+
+### Example Self-Review Note
+
+```markdown
+Self-review: Fixed edge case for null input in validate_slug()
+- Original code would throw NullPointerException
+- Added early return for null/empty values
+```
+
 ## Error Handling
 
 When errors occur:
diff --git a/.github/scripts/auto-fix.sh b/.github/scripts/auto-fix.sh
new file mode 100755
index 0000000..af3b0cb
--- /dev/null
+++ b/.github/scripts/auto-fix.sh
@@ -0,0 +1,30 @@
+#!/bin/bash
+# Auto-fix script for Autonomous Quality Enforcement (AQE) pattern
+# This script automatically fixes common issues
+
+set -e
+
+echo "=== Running AQE Auto-Fix ==="
+
+# Fix markdown linting issues
+if command -v markdownlint &> /dev/null; then
+    echo "Running markdownlint --fix..."
+    markdownlint docs/**/*.md README.md CLAUDE.md CONTRIBUTING.md --fix 2>/dev/null || true
+    echo "✅ Markdown auto-fix complete"
+else
+    echo "⚠️ markdownlint not installed, skipping markdown fixes"
+fi
+
+# Fix trailing whitespace
+echo "Removing trailing whitespace..."
+find docs -name "*.md" -exec sed -i 's/[[:space:]]*$//' {} \; 2>/dev/null || true
+echo "✅ Trailing whitespace removed"
+
+# Ensure files end with newline
+echo "Ensuring files end with newline..."
+find docs -name "*.md" -exec sh -c 'tail -c1 "$1" | read -r _ || echo >> "$1"' _ {} \; 2>/dev/null || true
+echo "✅ Newlines added"
+
+echo ""
+echo "=== AQE Auto-Fix Complete ✅ ==="
+echo "Run check.sh to verify all issues are resolved"
diff --git a/.github/scripts/check.sh b/.github/scripts/check.sh
new file mode 100755
index 0000000..7e7069b
--- /dev/null
+++ b/.github/scripts/check.sh
@@ -0,0 +1,41 @@
+#!/bin/bash
+# Validation script for Autonomous Quality Enforcement (AQE) pattern
+# This script runs all quality checks and returns non-zero on failure
+
+set -e
+
+echo "=== Running AQE Validation Checks ==="
+
+# Check if markdownlint is available
+if command -v markdownlint &> /dev/null; then
+    echo "Running markdownlint..."
+    markdownlint docs/**/*.md README.md CLAUDE.md CONTRIBUTING.md 2>/dev/null || {
+        echo "❌ Markdown linting failed"
+        exit 1
+    }
+    echo "✅ Markdown linting passed"
+else
+    echo "⚠️ markdownlint not installed, skipping markdown checks"
+fi
+
+# Validate documentation structure
+echo "Checking documentation structure..."
+test -d docs/patterns || { echo "❌ docs/patterns/ missing"; exit 1; }
+test -f docs/README.md || { echo "❌ docs/README.md missing"; exit 1; }
+test -d docs/adr || { echo "❌ docs/adr/ missing"; exit 1; }
+echo "✅ Documentation structure valid"
+
+# Check for required CLAUDE.md
+test -f CLAUDE.md || { echo "❌ CLAUDE.md missing"; exit 1; }
+echo "✅ CLAUDE.md exists"
+
+# Check for required agent configuration
+test -f .claude/agents/codebase-agent.md || { echo "❌ .claude/agents/codebase-agent.md missing"; exit 1; }
+echo "✅ Codebase agent configuration exists"
+
+# Check for context files
+test -d .claude/context || { echo "❌ .claude/context/ missing"; exit 1; }
+echo "✅ Context directory exists"
+
+echo ""
+echo "=== All AQE Validation Checks Passed ✅ ==="
diff --git a/.github/scripts/e2e-tests/run-all-e2e-tests.sh b/.github/scripts/e2e-tests/run-all-e2e-tests.sh
new file mode 100755
index 0000000..5d56083
--- /dev/null
+++ b/.github/scripts/e2e-tests/run-all-e2e-tests.sh
@@ -0,0 +1,62 @@
+#!/bin/bash
+# Run all E2E pattern tests and report results
+
+set -e
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+FAILED=0
+PASSED=0
+RESULTS=""
+
+echo "=========================================="
+echo "  Pattern Validation E2E Test Suite"
+echo "=========================================="
+echo ""
+
+run_test() {
+    local test_name=$1
+    local test_script=$2
+
+    echo "Running: $test_name"
+    echo "---"
+
+    if bash "$SCRIPT_DIR/$test_script"; then
+        PASSED=$((PASSED + 1))
+        RESULTS="$RESULTS\n✅ $test_name"
+    else
+        FAILED=$((FAILED + 1))
+        RESULTS="$RESULTS\n❌ $test_name"
+    fi
+    echo ""
+}
+
+# Run all pattern tests
+run_test "Pattern 1: AQE" "test-pattern-1-aqe.sh"
+run_test "Pattern 2: CBA" "test-pattern-2-cba.sh"
+run_test "Pattern 3: Dependabot" "test-pattern-3-dependabot.sh"
+run_test "Pattern 4: GHA" "test-pattern-4-gha.sh"
+run_test "Pattern 5: Issue-to-PR" "test-pattern-5-issue-to-pr.sh"
+run_test "Pattern 6: Multi-Agent" "test-pattern-6-multi-agent.sh"
+run_test "Pattern 7: PR Review" "test-pattern-7-pr-review.sh"
+run_test "Pattern 8: Security" "test-pattern-8-security.sh"
+run_test "Pattern 9: Self-Review" "test-pattern-9-self-review.sh"
+run_test "Pattern 10: Stale" "test-pattern-10-stale.sh"
+run_test "Pattern 11: Testing" "test-pattern-11-testing.sh"
+
+# Summary
+echo "=========================================="
+echo "  Test Results Summary"
+echo "=========================================="
+echo -e "$RESULTS"
+echo ""
+echo "Passed: $PASSED / $((PASSED + FAILED))"
+echo "Failed: $FAILED / $((PASSED + FAILED))"
+echo ""
+
+if [[ $FAILED -gt 0 ]]; then
+    echo "❌ SOME TESTS FAILED"
+    exit 1
+else
+    echo "✅ ALL TESTS PASSED"
+    exit 0
+fi
diff --git a/.github/scripts/e2e-tests/test-pattern-1-aqe.sh b/.github/scripts/e2e-tests/test-pattern-1-aqe.sh
new file mode 100755
index 0000000..41e2877
--- /dev/null
+++ b/.github/scripts/e2e-tests/test-pattern-1-aqe.sh
@@ -0,0 +1,55 @@
+#!/bin/bash
+# E2E Test: Pattern 1 - Autonomous Quality Enforcement (AQE)
+# Tests that check.sh and auto-fix.sh work correctly
+
+set -e
+
+echo "=== E2E Test: Pattern 1 - AQE ==="
+
+# Test 1: Verify check.sh exists and is executable
+echo "Test 1: Verify check.sh exists..."
+if [[ -x ".github/scripts/check.sh" ]]; then
+    echo "✅ check.sh exists and is executable"
+else
+    echo "❌ check.sh missing or not executable"
+    exit 1
+fi
+
+# Test 2: Verify auto-fix.sh exists and is executable
+echo "Test 2: Verify auto-fix.sh exists..."
+if [[ -x ".github/scripts/auto-fix.sh" ]]; then
+    echo "✅ auto-fix.sh exists and is executable"
+else
+    echo "❌ auto-fix.sh missing or not executable"
+    exit 1
+fi
+
+# Test 3: Verify validate.yml workflow exists
+echo "Test 3: Verify validate.yml workflow exists..."
+if [[ -f ".github/workflows/validate.yml" ]]; then
+    echo "✅ validate.yml workflow exists"
+else
+    echo "❌ validate.yml workflow missing"
+    exit 1
+fi
+
+# Test 4: Run check.sh and verify it executes
+echo "Test 4: Run check.sh..."
+if .github/scripts/check.sh; then
+    echo "✅ check.sh executed successfully"
+else
+    echo "❌ check.sh failed"
+    exit 1
+fi
+
+# Test 5: Verify CLAUDE.md has AQE process rule
+echo "Test 5: Verify AQE process rule in CLAUDE.md..."
+if grep -q "Autonomous Quality Enforcement" CLAUDE.md; then
+    echo "✅ AQE process rule found in CLAUDE.md"
+else
+    echo "❌ AQE process rule missing from CLAUDE.md"
+    exit 1
+fi
+
+echo ""
+echo "=== Pattern 1 (AQE): ALL TESTS PASSED ✅ ==="
diff --git a/.github/scripts/e2e-tests/test-pattern-10-stale.sh b/.github/scripts/e2e-tests/test-pattern-10-stale.sh
new file mode 100755
index 0000000..dc43d42
--- /dev/null
+++ b/.github/scripts/e2e-tests/test-pattern-10-stale.sh
@@ -0,0 +1,66 @@
+#!/bin/bash
+# E2E Test: Pattern 10 - Stale Issue Management
+# Tests that stale workflow is properly configured
+
+set -e
+
+echo "=== E2E Test: Pattern 10 - Stale Issue Management ==="
+
+WORKFLOW=".github/workflows/stale.yml"
+
+# Test 1: Verify workflow exists
+echo "Test 1: Verify stale.yml exists..."
+if [[ -f "$WORKFLOW" ]]; then
+    echo "✅ stale.yml exists"
+else
+    echo "❌ stale.yml missing"
+    exit 1
+fi
+
+# Test 2: Verify uses actions/stale
+echo "Test 2: Verify uses actions/stale..."
+if grep -q "actions/stale" "$WORKFLOW"; then
+    echo "✅ Uses actions/stale"
+else
+    echo "❌ Does not use actions/stale"
+    exit 1
+fi
+
+# Test 3: Verify schedule trigger configured
+echo "Test 3: Verify schedule trigger..."
+if grep -q "schedule" "$WORKFLOW"; then
+    echo "✅ Schedule trigger configured"
+else
+    echo "❌ Schedule trigger not configured"
+    exit 1
+fi
+
+# Test 4: Verify days-before-stale configured
+echo "Test 4: Verify stale timing configured..."
+if grep -q "days-before-stale" "$WORKFLOW"; then
+    echo "✅ Stale timing configured"
+else
+    echo "❌ Stale timing not configured"
+    exit 1
+fi
+
+# Test 5: Verify exempt labels configured
+echo "Test 5: Verify exempt labels..."
+if grep -q "exempt" "$WORKFLOW"; then
+    echo "✅ Exempt labels configured"
+else
+    echo "❌ Exempt labels not configured"
+    exit 1
+fi
+
+# Test 6: Verify stale message configured
+echo "Test 6: Verify stale message..."
+if grep -q "stale-issue-message\|stale-pr-message" "$WORKFLOW"; then
+    echo "✅ Stale message configured"
+else
+    echo "❌ Stale message not configured"
+    exit 1
+fi
+
+echo ""
+echo "=== Pattern 10 (Stale): ALL TESTS PASSED ✅ ==="
diff --git a/.github/scripts/e2e-tests/test-pattern-11-testing.sh b/.github/scripts/e2e-tests/test-pattern-11-testing.sh
new file mode 100755
index 0000000..54a61e2
--- /dev/null
+++ b/.github/scripts/e2e-tests/test-pattern-11-testing.sh
@@ -0,0 +1,73 @@
+#!/bin/bash
+# E2E Test: Pattern 11 - Testing Patterns
+# Tests that test pyramid structure exists and tests pass
+
+set -e
+
+echo "=== E2E Test: Pattern 11 - Testing Patterns ==="
+
+# Test 1: Verify tests directory exists
+echo "Test 1: Verify tests directory exists..."
+if [[ -d "tests" ]]; then
+    echo "✅ tests directory exists"
+else
+    echo "❌ tests directory missing"
+    exit 1
+fi
+
+# Test 2: Verify unit tests directory exists
+echo "Test 2: Verify unit tests directory..."
+if [[ -d "tests/unit" ]]; then
+    echo "✅ tests/unit exists"
+else
+    echo "❌ tests/unit missing"
+    exit 1
+fi
+
+# Test 3: Verify integration tests directory exists
+echo "Test 3: Verify integration tests directory..."
+if [[ -d "tests/integration" ]]; then
+    echo "✅ tests/integration exists"
+else
+    echo "❌ tests/integration missing"
+    exit 1
+fi
+
+# Test 4: Verify e2e tests directory exists
+echo "Test 4: Verify e2e tests directory..."
+if [[ -d "tests/e2e" ]]; then
+    echo "✅ tests/e2e exists"
+else
+    echo "❌ tests/e2e missing"
+    exit 1
+fi
+
+# Test 5: Verify pytest.ini exists
+echo "Test 5: Verify pytest.ini exists..."
+if [[ -f "pytest.ini" ]]; then
+    echo "✅ pytest.ini exists"
+else
+    echo "❌ pytest.ini missing"
+    exit 1
+fi
+
+# Test 6: Verify conftest.py exists
+echo "Test 6: Verify conftest.py exists..."
+if [[ -f "tests/conftest.py" ]]; then
+    echo "✅ conftest.py exists"
+else
+    echo "❌ conftest.py missing"
+    exit 1
+fi
+
+# Test 7: Run all tests
+echo "Test 7: Run full test suite..."
+if python -m pytest tests/ -v --tb=short 2>&1; then
+    echo "✅ All tests passed"
+else
+    echo "❌ Some tests failed"
+    exit 1
+fi
+
+echo ""
+echo "=== Pattern 11 (Testing): ALL TESTS PASSED ✅ ==="
diff --git a/.github/scripts/e2e-tests/test-pattern-2-cba.sh b/.github/scripts/e2e-tests/test-pattern-2-cba.sh
new file mode 100755
index 0000000..8ed7d3c
--- /dev/null
+++ b/.github/scripts/e2e-tests/test-pattern-2-cba.sh
@@ -0,0 +1,73 @@
+#!/bin/bash
+# E2E Test: Pattern 2 - Codebase Agent (CBA)
+# Tests that CBA configuration files exist and are complete
+
+set -e
+
+echo "=== E2E Test: Pattern 2 - CBA ==="
+
+# Test 1: Verify codebase-agent.md exists
+echo "Test 1: Verify codebase-agent.md exists..."
+if [[ -f ".claude/agents/codebase-agent.md" ]]; then
+    echo "✅ codebase-agent.md exists"
+else
+    echo "❌ codebase-agent.md missing"
+    exit 1
+fi
+
+# Test 2: Verify autonomy levels are documented
+echo "Test 2: Verify autonomy levels documented..."
+if grep -qi "autonomy" .claude/agents/codebase-agent.md; then
+    echo "✅ Autonomy levels documented"
+else
+    echo "❌ Autonomy levels not documented"
+    exit 1
+fi
+
+# Test 3: Verify context directory exists
+echo "Test 3: Verify context directory exists..."
+if [[ -d ".claude/context" ]]; then
+    echo "✅ Context directory exists"
+else
+    echo "❌ Context directory missing"
+    exit 1
+fi
+
+# Test 4: Verify architecture.md exists
+echo "Test 4: Verify architecture.md exists..."
+if [[ -f ".claude/context/architecture.md" ]]; then
+    echo "✅ architecture.md exists"
+else
+    echo "❌ architecture.md missing"
+    exit 1
+fi
+
+# Test 5: Verify security-standards.md exists
+echo "Test 5: Verify security-standards.md exists..."
+if [[ -f ".claude/context/security-standards.md" ]]; then
+    echo "✅ security-standards.md exists"
+else
+    echo "❌ security-standards.md missing"
+    exit 1
+fi
+
+# Test 6: Verify testing-patterns.md exists
+echo "Test 6: Verify testing-patterns.md exists..."
+if [[ -f ".claude/context/testing-patterns.md" ]]; then
+    echo "✅ testing-patterns.md exists"
+else
+    echo "❌ testing-patterns.md missing"
+    exit 1
+fi
+
+# Test 7: Verify self-review protocol exists
+echo "Test 7: Verify self-review protocol..."
+if grep -qi "self-review" .claude/agents/codebase-agent.md; then
+    echo "✅ Self-review protocol documented"
+else
+    echo "❌ Self-review protocol not documented"
+    exit 1
+fi
+
+echo ""
+echo "=== Pattern 2 (CBA): ALL TESTS PASSED ✅ ==="
diff --git a/.github/scripts/e2e-tests/test-pattern-3-dependabot.sh b/.github/scripts/e2e-tests/test-pattern-3-dependabot.sh
new file mode 100755
index 0000000..d1755f3
--- /dev/null
+++ b/.github/scripts/e2e-tests/test-pattern-3-dependabot.sh
@@ -0,0 +1,55 @@
+#!/bin/bash
+# E2E Test: Pattern 3 - Dependabot Auto-Merge
+# Tests that Dependabot configuration and auto-merge workflow exist
+
+set -e
+
+echo "=== E2E Test: Pattern 3 - Dependabot Auto-Merge ==="
+
+# Test 1: Verify dependabot.yml exists
+echo "Test 1: Verify dependabot.yml exists..."
+if [[ -f ".github/dependabot.yml" ]]; then
+    echo "✅ dependabot.yml exists"
+else
+    echo "❌ dependabot.yml missing"
+    exit 1
+fi
+
+# Test 2: Verify dependabot-auto-merge.yml workflow exists
+echo "Test 2: Verify dependabot-auto-merge.yml exists..."
+if [[ -f ".github/workflows/dependabot-auto-merge.yml" ]]; then
+    echo "✅ dependabot-auto-merge.yml exists"
+else
+    echo "❌ dependabot-auto-merge.yml missing"
+    exit 1
+fi
+
+# Test 3: Verify dependabot.yml has package-ecosystem
+echo "Test 3: Verify package-ecosystem configured..."
+if grep -q "package-ecosystem" .github/dependabot.yml; then
+    echo "✅ package-ecosystem configured"
+else
+    echo "❌ package-ecosystem not configured"
+    exit 1
+fi
+
+# Test 4: Verify auto-merge workflow checks for dependabot
+echo "Test 4: Verify auto-merge checks for dependabot..."
+if grep -qi "dependabot" .github/workflows/dependabot-auto-merge.yml; then
+    echo "✅ Auto-merge workflow checks for dependabot"
+else
+    echo "❌ Auto-merge workflow doesn't check for dependabot"
+    exit 1
+fi
+
+# Test 5: Verify auto-merge uses dependabot metadata
+echo "Test 5: Verify dependabot metadata action used..."
+if grep -q "dependabot/fetch-metadata" .github/workflows/dependabot-auto-merge.yml; then
+    echo "✅ dependabot/fetch-metadata action used"
+else
+    echo "❌ dependabot/fetch-metadata action not found"
+    exit 1
+fi
+
+echo ""
+echo "=== Pattern 3 (Dependabot): ALL TESTS PASSED ✅ ==="
diff --git a/.github/scripts/e2e-tests/test-pattern-4-gha.sh b/.github/scripts/e2e-tests/test-pattern-4-gha.sh
new file mode 100755
index 0000000..8a64759
--- /dev/null
+++ b/.github/scripts/e2e-tests/test-pattern-4-gha.sh
@@ -0,0 +1,56 @@
+#!/bin/bash
+# E2E Test: Pattern 4 - GitHub Actions Automation Patterns
+# Tests that all 4 sub-pattern workflows exist
+
+set -e
+
+echo "=== E2E Test: Pattern 4 - GHA Automation Patterns ==="
+
+WORKFLOWS_DIR=".github/workflows"
+FAILED=0
+
+# Test 1: Issue-to-PR workflow
+echo "Test 1: Verify issue-to-pr.yml exists..."
+if [[ -f "$WORKFLOWS_DIR/issue-to-pr.yml" ]]; then
+    echo "✅ issue-to-pr.yml exists"
+else
+    echo "❌ issue-to-pr.yml missing"
+    FAILED=1
+fi
+
+# Test 2: PR Auto-Review workflow
+echo "Test 2: Verify pr-review.yml exists..."
+if [[ -f "$WORKFLOWS_DIR/pr-review.yml" ]]; then
+    echo "✅ pr-review.yml exists"
+else
+    echo "❌ pr-review.yml missing"
+    FAILED=1
+fi
+
+# Test 3: Dependabot Auto-Merge workflow
+echo "Test 3: Verify dependabot-auto-merge.yml exists..."
+if [[ -f "$WORKFLOWS_DIR/dependabot-auto-merge.yml" ]]; then
+    echo "✅ dependabot-auto-merge.yml exists"
+else
+    echo "❌ dependabot-auto-merge.yml missing"
+    FAILED=1
+fi
+
+# Test 4: Stale Issue Management workflow
+echo "Test 4: Verify stale.yml exists..."
+if [[ -f "$WORKFLOWS_DIR/stale.yml" ]]; then
+    echo "✅ stale.yml exists"
+else
+    echo "❌ stale.yml missing"
+    FAILED=1
+fi
+
+# Summary
+if [[ $FAILED -eq 1 ]]; then
+    echo ""
+    echo "=== Pattern 4 (GHA): SOME TESTS FAILED ❌ ==="
+    exit 1
+fi
+
+echo ""
+echo "=== Pattern 4 (GHA): ALL TESTS PASSED ✅ ==="
diff --git a/.github/scripts/e2e-tests/test-pattern-5-issue-to-pr.sh b/.github/scripts/e2e-tests/test-pattern-5-issue-to-pr.sh
new file mode 100755
index 0000000..edce49b
--- /dev/null
+++ b/.github/scripts/e2e-tests/test-pattern-5-issue-to-pr.sh
@@ -0,0 +1,66 @@
+#!/bin/bash
+# E2E Test: Pattern 5 - Issue-to-PR Automation
+# Tests that issue-to-pr workflow is properly configured
+
+set -e
+
+echo "=== E2E Test: Pattern 5 - Issue-to-PR Automation ==="
+
+WORKFLOW=".github/workflows/issue-to-pr.yml"
+
+# Test 1: Verify workflow exists
+echo "Test 1: Verify issue-to-pr.yml exists..."
+if [[ -f "$WORKFLOW" ]]; then
+    echo "✅ issue-to-pr.yml exists"
+else
+    echo "❌ issue-to-pr.yml missing"
+    exit 1
+fi
+
+# Test 2: Verify workflow triggers on issue labeled
+echo "Test 2: Verify triggers on issue labeled..."
+if grep -q "issues:" "$WORKFLOW" && grep -q "labeled" "$WORKFLOW"; then
+    echo "✅ Triggers on issue labeled"
+else
+    echo "❌ Does not trigger on issue labeled"
+    exit 1
+fi
+
+# Test 3: Verify workflow checks for ready-for-pr label
+echo "Test 3: Verify checks for ready-for-pr label..."
+if grep -q "ready-for-pr" "$WORKFLOW"; then
+    echo "✅ Checks for ready-for-pr label"
+else
+    echo "❌ Does not check for ready-for-pr label"
+    exit 1
+fi
+
+# Test 4: Verify workflow has issue clarity analysis
+echo "Test 4: Verify issue clarity analysis..."
+if grep -qi "clarity\|acceptance criteria\|requirements" "$WORKFLOW"; then
+    echo "✅ Issue clarity analysis present"
+else
+    echo "❌ Issue clarity analysis missing"
+    exit 1
+fi
+
+# Test 5: Verify workflow can create PRs
+echo "Test 5: Verify PR creation capability..."
+if grep -q "gh pr create" "$WORKFLOW"; then
+    echo "✅ PR creation configured"
+else
+    echo "❌ PR creation not configured"
+    exit 1
+fi
+
+# Test 6: Verify workflow can post clarification comments
+echo "Test 6: Verify clarification comment capability..."
+if grep -q "gh issue comment" "$WORKFLOW"; then
+    echo "✅ Clarification comments configured"
+else
+    echo "❌ Clarification comments not configured"
+    exit 1
+fi
+
+echo ""
+echo "=== Pattern 5 (Issue-to-PR): ALL TESTS PASSED ✅ ==="
diff --git a/.github/scripts/e2e-tests/test-pattern-6-multi-agent.sh b/.github/scripts/e2e-tests/test-pattern-6-multi-agent.sh
new file mode 100755
index 0000000..b2cf529
--- /dev/null
+++ b/.github/scripts/e2e-tests/test-pattern-6-multi-agent.sh
@@ -0,0 +1,66 @@
+#!/bin/bash
+# E2E Test: Pattern 6 - Multi-Agent Code Review
+# Tests that multi-agent code review documentation exists
+
+set -e
+
+echo "=== E2E Test: Pattern 6 - Multi-Agent Code Review ==="
+
+DOC="docs/patterns/multi-agent-code-review.md"
+
+# Test 1: Verify documentation exists
+echo "Test 1: Verify multi-agent-code-review.md exists..."
+if [[ -f "$DOC" ]]; then
+    echo "✅ multi-agent-code-review.md exists"
+else
+    echo "❌ multi-agent-code-review.md missing"
+    exit 1
+fi
+
+# Test 2: Verify Architecture Advisor documented
+echo "Test 2: Verify Architecture Advisor documented..."
+if grep -qi "architecture" "$DOC"; then
+    echo "✅ Architecture Advisor documented"
+else
+    echo "❌ Architecture Advisor not documented"
+    exit 1
+fi
+
+# Test 3: Verify Simplification Advisor documented
+echo "Test 3: Verify Simplification Advisor documented..."
+if grep -qi "simplification" "$DOC"; then
+    echo "✅ Simplification Advisor documented"
+else
+    echo "❌ Simplification Advisor not documented"
+    exit 1
+fi
+
+# Test 4: Verify Security Advisor documented
+echo "Test 4: Verify Security Advisor documented..."
+if grep -qi "security" "$DOC"; then
+    echo "✅ Security Advisor documented"
+else
+    echo "❌ Security Advisor not documented"
+    exit 1
+fi
+
+# Test 5: Verify confidence thresholds documented
+echo "Test 5: Verify confidence thresholds documented..."
+if grep -qE "(80%|90%|confidence)" "$DOC"; then
+    echo "✅ Confidence thresholds documented"
+else
+    echo "❌ Confidence thresholds not documented"
+    exit 1
+fi
+
+# Test 6: Verify finding categories documented (CRITICAL, WARNING, INFO)
+echo "Test 6: Verify finding categories documented..."
+if grep -q "CRITICAL" "$DOC" && grep -q "WARNING" "$DOC"; then
+    echo "✅ Finding categories documented"
+else
+    echo "❌ Finding categories not documented"
+    exit 1
+fi
+
+echo ""
+echo "=== Pattern 6 (Multi-Agent): ALL TESTS PASSED ✅ ==="
diff --git a/.github/scripts/e2e-tests/test-pattern-7-pr-review.sh b/.github/scripts/e2e-tests/test-pattern-7-pr-review.sh
new file mode 100755
index 0000000..88b59fd
--- /dev/null
+++ b/.github/scripts/e2e-tests/test-pattern-7-pr-review.sh
@@ -0,0 +1,66 @@
+#!/bin/bash
+# E2E Test: Pattern 7 - PR Auto-Review
+# Tests that PR auto-review workflow is properly configured
+
+set -e
+
+echo "=== E2E Test: Pattern 7 - PR Auto-Review ==="
+
+WORKFLOW=".github/workflows/pr-review.yml"
+
+# Test 1: Verify workflow exists
+echo "Test 1: Verify pr-review.yml exists..."
+if [[ -f "$WORKFLOW" ]]; then
+    echo "✅ pr-review.yml exists"
+else
+    echo "❌ pr-review.yml missing"
+    exit 1
+fi
+
+# Test 2: Verify workflow triggers on pull_request
+echo "Test 2: Verify triggers on pull_request..."
+if grep -q "pull_request" "$WORKFLOW"; then
+    echo "✅ Triggers on pull_request"
+else
+    echo "❌ Does not trigger on pull_request"
+    exit 1
+fi
+
+# Test 3: Verify workflow skips draft PRs
+echo "Test 3: Verify skips draft PRs..."
+if grep -qi "draft" "$WORKFLOW"; then
+    echo "✅ Draft PR handling configured"
+else
+    echo "❌ Draft PR handling not configured"
+    exit 1
+fi
+
+# Test 4: Verify workflow checks for skip-review label
+echo "Test 4: Verify skip-review label support..."
+if grep -q "skip-review" "$WORKFLOW"; then
+    echo "✅ skip-review label supported"
+else
+    echo "❌ skip-review label not supported"
+    exit 1
+fi
+
+# Test 5: Verify security checks configured
+echo "Test 5: Verify security checks..."
+if grep -qi "secret\|password\|key\|security" "$WORKFLOW"; then
+    echo "✅ Security checks configured"
+else
+    echo "❌ Security checks not configured"
+    exit 1
+fi
+
+# Test 6: Verify workflow can post comments
+echo "Test 6: Verify comment posting capability..."
+if grep -q "gh pr comment\|issue comment\|comment" "$WORKFLOW"; then
+    echo "✅ Comment posting configured"
+else
+    echo "❌ Comment posting not configured"
+    exit 1
+fi
+
+echo ""
+echo "=== Pattern 7 (PR Auto-Review): ALL TESTS PASSED ✅ ==="
diff --git a/.github/scripts/e2e-tests/test-pattern-8-security.sh b/.github/scripts/e2e-tests/test-pattern-8-security.sh
new file mode 100755
index 0000000..98a00f7
--- /dev/null
+++ b/.github/scripts/e2e-tests/test-pattern-8-security.sh
@@ -0,0 +1,64 @@
+#!/bin/bash
+# E2E Test: Pattern 8 - Security Patterns
+# Tests that security module exists and tests pass
+
+set -e
+
+echo "=== E2E Test: Pattern 8 - Security Patterns ==="
+
+# Test 1: Verify security module exists
+echo "Test 1: Verify security.py exists..."
+if [[ -f "src/core/security.py" ]]; then
+    echo "✅ security.py exists"
+else
+    echo "❌ security.py missing"
+    exit 1
+fi
+
+# Test 2: Verify sanitize_string function exists
+echo "Test 2: Verify sanitize_string function..."
+if grep -q "def sanitize_string" src/core/security.py; then
+    echo "✅ sanitize_string function exists"
+else
+    echo "❌ sanitize_string function missing"
+    exit 1
+fi
+
+# Test 3: Verify validate_slug function exists
+echo "Test 3: Verify validate_slug function..."
+if grep -q "def validate_slug" src/core/security.py; then
+    echo "✅ validate_slug function exists"
+else
+    echo "❌ validate_slug function missing"
+    exit 1
+fi
+
+# Test 4: Verify sanitize_path function exists
+echo "Test 4: Verify sanitize_path function..."
+if grep -q "def sanitize_path" src/core/security.py; then
+    echo "✅ sanitize_path function exists"
+else
+    echo "❌ sanitize_path function missing"
+    exit 1
+fi
+
+# Test 5: Verify security tests exist
+echo "Test 5: Verify security tests exist..."
+if [[ -f "tests/unit/test_security.py" ]]; then
+    echo "✅ test_security.py exists"
+else
+    echo "❌ test_security.py missing"
+    exit 1
+fi
+
+# Test 6: Run security unit tests
+echo "Test 6: Run security unit tests..."
+if python -m pytest tests/unit/test_security.py -v --tb=short 2>&1; then
+    echo "✅ Security tests passed"
+else
+    echo "❌ Security tests failed"
+    exit 1
+fi
+
+echo ""
+echo "=== Pattern 8 (Security): ALL TESTS PASSED ✅ ==="
diff --git a/.github/scripts/e2e-tests/test-pattern-9-self-review.sh b/.github/scripts/e2e-tests/test-pattern-9-self-review.sh
new file mode 100755
index 0000000..0f88b4d
--- /dev/null
+++ b/.github/scripts/e2e-tests/test-pattern-9-self-review.sh
@@ -0,0 +1,66 @@
+#!/bin/bash
+# E2E Test: Pattern 9 - Self-Review Reflection
+# Tests that self-review protocol is documented in CBA
+
+set -e
+
+echo "=== E2E Test: Pattern 9 - Self-Review Reflection ==="
+
+CBA_CONFIG=".claude/agents/codebase-agent.md"
+
+# Test 1: Verify CBA config exists
+echo "Test 1: Verify codebase-agent.md exists..."
+if [[ -f "$CBA_CONFIG" ]]; then
+    echo "✅ codebase-agent.md exists"
+else
+    echo "❌ codebase-agent.md missing"
+    exit 1
+fi
+
+# Test 2: Verify self-review section exists
+echo "Test 2: Verify self-review section..."
+if grep -qi "self-review" "$CBA_CONFIG"; then
+    echo "✅ Self-review section exists"
+else
+    echo "❌ Self-review section missing"
+    exit 1
+fi
+
+# Test 3: Verify edge cases checklist item
+echo "Test 3: Verify edge cases in checklist..."
+if grep -qi "edge case" "$CBA_CONFIG"; then
+    echo "✅ Edge cases in checklist"
+else
+    echo "❌ Edge cases not in checklist"
+    exit 1
+fi
+
+# Test 4: Verify security checklist item
+echo "Test 4: Verify security in checklist..."
+if grep -qi "security" "$CBA_CONFIG"; then
+    echo "✅ Security in checklist"
+else
+    echo "❌ Security not in checklist"
+    exit 1
+fi
+
+# Test 5: Verify error handling checklist item
+echo "Test 5: Verify error handling in checklist..."
+if grep -qi "error handling" "$CBA_CONFIG"; then
+    echo "✅ Error handling in checklist"
+else
+    echo "❌ Error handling not in checklist"
+    exit 1
+fi
+
+# Test 6: Verify iteration limit documented
+echo "Test 6: Verify iteration limit..."
+if grep -qE "(iteration|maximum|max)" "$CBA_CONFIG"; then
+    echo "✅ Iteration limit documented"
+else
+    echo "❌ Iteration limit not documented"
+    exit 1
+fi
+
+echo ""
+echo "=== Pattern 9 (Self-Review): ALL TESTS PASSED ✅ ==="
diff --git a/.github/workflows/dependabot-auto-merge.yml b/.github/workflows/dependabot-auto-merge.yml
new file mode 100644
index 0000000..2243e4f
--- /dev/null
+++ b/.github/workflows/dependabot-auto-merge.yml
@@ -0,0 +1,37 @@
+name: Dependabot Auto-Merge
+
+on:
+  pull_request:
+    types: [opened, synchronize, reopened, labeled]
+
+permissions:
+  contents: write
+  pull-requests: write
+
+jobs:
+  auto-merge:
+    runs-on: ubuntu-latest
+    if: github.actor == 'dependabot[bot]'
+
+    steps:
+      - name: Dependabot metadata
+        id: metadata
+        uses: dependabot/fetch-metadata@v2
+        with:
+          github-token: "${{ secrets.GITHUB_TOKEN }}"
+
+      - name: Auto-merge patch updates
+        if: steps.metadata.outputs.update-type == 'version-update:semver-patch'
+        run: |
+          echo "Auto-merging patch update: ${{ github.event.pull_request.title }}"
+          gh pr merge --auto --squash "${{ github.event.pull_request.html_url }}"
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Comment on minor/major updates
+        if: steps.metadata.outputs.update-type != 'version-update:semver-patch'
+        run: |
+          echo "Minor/major update detected - requires human review"
+          gh pr comment "${{ github.event.pull_request.html_url }}" --body "⚠️ This is a **${{ steps.metadata.outputs.update-type }}** update and requires human review before merging."
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/e2e-pattern-tests.yml b/.github/workflows/e2e-pattern-tests.yml
new file mode 100644
index 0000000..fc66a65
--- /dev/null
+++ b/.github/workflows/e2e-pattern-tests.yml
@@ -0,0 +1,185 @@
+name: E2E Pattern Tests
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+  workflow_dispatch:
+
+jobs:
+  pattern-1-aqe:
+    name: Pattern 1 - AQE
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Run AQE tests
+        run: |
+          chmod +x .github/scripts/e2e-tests/test-pattern-1-aqe.sh
+          .github/scripts/e2e-tests/test-pattern-1-aqe.sh
+
+  pattern-2-cba:
+    name: Pattern 2 - CBA
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Run CBA tests
+        run: |
+          chmod +x .github/scripts/e2e-tests/test-pattern-2-cba.sh
+          .github/scripts/e2e-tests/test-pattern-2-cba.sh
+
+  pattern-3-dependabot:
+    name: Pattern 3 - Dependabot
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Run Dependabot tests
+        run: |
+          chmod +x .github/scripts/e2e-tests/test-pattern-3-dependabot.sh
+          .github/scripts/e2e-tests/test-pattern-3-dependabot.sh
+
+  pattern-4-gha:
+    name: Pattern 4 - GHA
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Run GHA tests
+        run: |
+          chmod +x .github/scripts/e2e-tests/test-pattern-4-gha.sh
+          .github/scripts/e2e-tests/test-pattern-4-gha.sh
+
+  pattern-5-issue-to-pr:
+    name: Pattern 5 - Issue-to-PR
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Run Issue-to-PR tests
+        run: |
+          chmod +x .github/scripts/e2e-tests/test-pattern-5-issue-to-pr.sh
+          .github/scripts/e2e-tests/test-pattern-5-issue-to-pr.sh
+
+  pattern-6-multi-agent:
+    name: Pattern 6 - Multi-Agent
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Run Multi-Agent tests
+        run: |
+          chmod +x .github/scripts/e2e-tests/test-pattern-6-multi-agent.sh
+          .github/scripts/e2e-tests/test-pattern-6-multi-agent.sh
+
+  pattern-7-pr-review:
+    name: Pattern 7 - PR Review
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Run PR Review tests
+        run: |
+          chmod +x .github/scripts/e2e-tests/test-pattern-7-pr-review.sh
+          .github/scripts/e2e-tests/test-pattern-7-pr-review.sh
+
+  pattern-8-security:
+    name: Pattern 8 - Security
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
+      - name: Install dependencies
+        run: pip install pytest
+      - name: Run Security tests
+        run: |
+          chmod +x .github/scripts/e2e-tests/test-pattern-8-security.sh
+          .github/scripts/e2e-tests/test-pattern-8-security.sh
+
+  pattern-9-self-review:
+    name: Pattern 9 - Self-Review
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Run Self-Review tests
+        run: |
+          chmod +x .github/scripts/e2e-tests/test-pattern-9-self-review.sh
+          .github/scripts/e2e-tests/test-pattern-9-self-review.sh
+
+  pattern-10-stale:
+    name: Pattern 10 - Stale
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Run Stale tests
+        run: |
+          chmod +x .github/scripts/e2e-tests/test-pattern-10-stale.sh
+          .github/scripts/e2e-tests/test-pattern-10-stale.sh
+
+  pattern-11-testing:
+    name: Pattern 11 - Testing
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
+      - name: Install dependencies
+        run: pip install pytest
+      - name: Run Testing tests
+        run: |
+          chmod +x .github/scripts/e2e-tests/test-pattern-11-testing.sh
+          .github/scripts/e2e-tests/test-pattern-11-testing.sh
+
+  summary:
+    name: E2E Test Summary
+    runs-on: ubuntu-latest
+    needs:
+      - pattern-1-aqe
+      - pattern-2-cba
+      - pattern-3-dependabot
+      - pattern-4-gha
+      - pattern-5-issue-to-pr
+      - pattern-6-multi-agent
+      - pattern-7-pr-review
+      - pattern-8-security
+      - pattern-9-self-review
+      - pattern-10-stale
+      - pattern-11-testing
+    if: always()
+    steps:
+      - name: Check results
+        run: |
+          echo "=========================================="
+          echo "  E2E Pattern Test Results"
+          echo "=========================================="
+          echo ""
+          echo "Pattern 1 (AQE): ${{ needs.pattern-1-aqe.result }}"
+          echo "Pattern 2 (CBA): ${{ needs.pattern-2-cba.result }}"
+          echo "Pattern 3 (Dependabot): ${{ needs.pattern-3-dependabot.result }}"
+          echo "Pattern 4 (GHA): ${{ needs.pattern-4-gha.result }}"
+          echo "Pattern 5 (Issue-to-PR): ${{ needs.pattern-5-issue-to-pr.result }}"
+          echo "Pattern 6 (Multi-Agent): ${{ needs.pattern-6-multi-agent.result }}"
+          echo "Pattern 7 (PR Review): ${{ needs.pattern-7-pr-review.result }}"
+          echo "Pattern 8 (Security): ${{ needs.pattern-8-security.result }}"
+          echo "Pattern 9 (Self-Review): ${{ needs.pattern-9-self-review.result }}"
+          echo "Pattern 10 (Stale): ${{ needs.pattern-10-stale.result }}"
+          echo "Pattern 11 (Testing): ${{ needs.pattern-11-testing.result }}"
+          echo ""
+
+          # Check if any failed
+          if [[ "${{ needs.pattern-1-aqe.result }}" == "failure" ]] || \
+             [[ "${{ needs.pattern-2-cba.result }}" == "failure" ]] || \
+             [[ "${{ needs.pattern-3-dependabot.result }}" == "failure" ]] || \
+             [[ "${{ needs.pattern-4-gha.result }}" == "failure" ]] || \
+             [[ "${{ needs.pattern-5-issue-to-pr.result }}" == "failure" ]] || \
+             [[ "${{ needs.pattern-6-multi-agent.result }}" == "failure" ]] || \
+             [[ "${{ needs.pattern-7-pr-review.result }}" == "failure" ]] || \
+             [[ "${{ needs.pattern-8-security.result }}" == "failure" ]] || \
+             [[ "${{ needs.pattern-9-self-review.result }}" == "failure" ]] || \
+             [[ "${{ needs.pattern-10-stale.result }}" == "failure" ]] || \
+             [[ "${{ needs.pattern-11-testing.result }}" == "failure" ]]; then
+            echo "❌ SOME PATTERN TESTS FAILED"
+            exit 1
+          else
+            echo "✅ ALL PATTERN TESTS PASSED"
+          fi
diff --git a/.github/workflows/issue-to-pr.yml b/.github/workflows/issue-to-pr.yml
new file mode 100644
index 0000000..443db21
--- /dev/null
+++ b/.github/workflows/issue-to-pr.yml
@@ -0,0 +1,96 @@
+name: Issue to PR
+
+on:
+  issues:
+    types: [labeled]
+
+permissions:
+  contents: write
+  pull-requests: write
+  issues: write
+
+jobs:
+  analyze-and-create-pr:
+    runs-on: ubuntu-latest
+    if: github.event.label.name == 'ready-for-pr'
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Analyze issue clarity
+        id: analyze
+        env:
+          ISSUE_BODY: ${{ github.event.issue.body }}
+        run: |
+          # Check for acceptance criteria indicators
+          if echo "$ISSUE_BODY" | grep -qiE "(acceptance criteria|requirements|should|must|expected)"; then
+            echo "clear=true" >> $GITHUB_OUTPUT
+            echo "Issue has clear requirements"
+          else
+            echo "clear=false" >> $GITHUB_OUTPUT
+            echo "Issue may need clarification"
+          fi
+
+      - name: Request clarification for vague issues
+        if: steps.analyze.outputs.clear == 'false'
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          ISSUE_NUMBER: ${{ github.event.issue.number }}
+        run: |
+          gh issue comment "$ISSUE_NUMBER" --body "This issue was labeled ready-for-pr but may need more detail.
+
+          Please provide:
+          - Clear acceptance criteria
+          - Expected behavior
+          - Any specific implementation requirements
+
+          Once updated, remove and re-add the ready-for-pr label."
+
+      - name: Create implementation branch
+        if: steps.analyze.outputs.clear == 'true'
+        env:
+          ISSUE_TITLE: ${{ github.event.issue.title }}
+          ISSUE_NUMBER: ${{ github.event.issue.number }}
+        run: |
+          BRANCH_NAME="issue-${ISSUE_NUMBER}-$(echo "$ISSUE_TITLE" | tr '[:upper:]' '[:lower:]' | sed 's/[^a-z0-9]/-/g' | head -c 40)"
+          git checkout -b "$BRANCH_NAME"
+          echo "BRANCH_NAME=$BRANCH_NAME" >> $GITHUB_ENV
+
+      - name: Create draft PR
+        if: steps.analyze.outputs.clear == 'true'
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          ISSUE_TITLE: ${{ github.event.issue.title }}
+          ISSUE_NUMBER: ${{ github.event.issue.number }}
+        run: |
+          # Create a placeholder commit
+          cat > IMPLEMENTATION.md << EOF
+          # Implementation for Issue #${ISSUE_NUMBER}
+
+          Issue: ${ISSUE_TITLE}
+
+          ## Changes
+          - [ ] Implementation pending
+          EOF
+
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+          git add IMPLEMENTATION.md
+          git commit -m "feat: Start implementation for #${ISSUE_NUMBER}"
+          git push -u origin "$BRANCH_NAME"
+
+          gh pr create \
+            --draft \
+            --title "feat: ${ISSUE_TITLE}" \
+            --body "## Summary
+          Implements #${ISSUE_NUMBER}
+
+          ## Changes
+          - Implementation in progress
+
+          ## Test Plan
+          - [ ] Tests added
+          - [ ] Manual verification complete
+
+          ---
+          Created automatically from issue #${ISSUE_NUMBER}"
diff --git a/.github/workflows/pr-review.yml b/.github/workflows/pr-review.yml
new file mode 100644
index 0000000..0bc49c9
--- /dev/null
+++ b/.github/workflows/pr-review.yml
@@ -0,0 +1,113 @@
+name: PR Auto-Review
+
+on:
+  pull_request:
+    types: [opened, synchronize, ready_for_review]
+
+permissions:
+  contents: read
+  pull-requests: write
+
+jobs:
+  auto-review:
+    runs-on: ubuntu-latest
+    # Skip draft PRs and PRs with skip-review label
+    if: |
+      github.event.pull_request.draft == false &&
+      !contains(github.event.pull_request.labels.*.name, 'skip-review')
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Get changed files
+        id: changed
+        run: |
+          CHANGED_FILES=$(gh pr view ${{ github.event.pull_request.number }} --json files -q '.files[].path' | tr '\n' ' ')
+          echo "files=$CHANGED_FILES" >> $GITHUB_OUTPUT
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Security review
+        id: security
+        run: |
+          FINDINGS=""
+
+          # Check for hardcoded secrets patterns
+          if git diff origin/main...HEAD | grep -iE "(password|secret|api_key|token)\s*=\s*['\"][^'\"]+['\"]"; then
+            FINDINGS="${FINDINGS}🔴 **CRITICAL**: Potential hardcoded secrets detected\n"
+          fi
+
+          # Check for .env file additions
+          if echo "${{ steps.changed.outputs.files }}" | grep -qE "\.env$"; then
+            FINDINGS="${FINDINGS}🔴 **CRITICAL**: .env file should not be committed\n"
+          fi
+
+          # Check for TODO/FIXME in security-sensitive areas
+          if git diff origin/main...HEAD | grep -iE "(security|auth|password)" | grep -iE "(todo|fixme|hack)"; then
+            FINDINGS="${FINDINGS}🟡 **WARNING**: TODO/FIXME in security-sensitive code\n"
+          fi
+
+          if [ -n "$FINDINGS" ]; then
+            echo "has_findings=true" >> $GITHUB_OUTPUT
+            echo -e "findings=$FINDINGS" >> $GITHUB_OUTPUT
+          else
+            echo "has_findings=false" >> $GITHUB_OUTPUT
+          fi
+
+      - name: Code quality review
+        id: quality
+        run: |
+          FINDINGS=""
+
+          # Check for large files
+          LARGE_FILES=$(git diff --stat origin/main...HEAD | grep -E "\+[0-9]{3,}" | head -5)
+          if [ -n "$LARGE_FILES" ]; then
+            FINDINGS="${FINDINGS}🟡 **WARNING**: Large changes detected - consider breaking into smaller PRs\n"
+          fi
+
+          # Check for missing tests in code changes
+          CODE_CHANGED=$(echo "${{ steps.changed.outputs.files }}" | grep -E "\.(py|js|ts)$" | grep -v test || true)
+          TEST_CHANGED=$(echo "${{ steps.changed.outputs.files }}" | grep -E "test" || true)
+          if [ -n "$CODE_CHANGED" ] && [ -z "$TEST_CHANGED" ]; then
+            FINDINGS="${FINDINGS}🟡 **WARNING**: Code changes without corresponding tests\n"
+          fi
+
+          if [ -n "$FINDINGS" ]; then
+            echo "has_findings=true" >> $GITHUB_OUTPUT
+            echo -e "findings=$FINDINGS" >> $GITHUB_OUTPUT
+          else
+            echo "has_findings=false" >> $GITHUB_OUTPUT
+          fi
+
+      - name: Post review comment
+        if: steps.security.outputs.has_findings == 'true' || steps.quality.outputs.has_findings == 'true'
+        run: |
+          COMMENT="## 🤖 Automated PR Review\n\n"
+
+          if [ "${{ steps.security.outputs.has_findings }}" == "true" ]; then
+            COMMENT="${COMMENT}### Security Findings\n${{ steps.security.outputs.findings }}\n"
+          fi
+
+          if [ "${{ steps.quality.outputs.has_findings }}" == "true" ]; then
+            COMMENT="${COMMENT}### Code Quality\n${{ steps.quality.outputs.findings }}\n"
+          fi
+
+          COMMENT="${COMMENT}\n---\n*This is an automated review. Please address any 🔴 CRITICAL issues before merging.*"
+
+          echo -e "$COMMENT" | gh pr comment ${{ github.event.pull_request.number }} --body-file -
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Post success comment
+        if: steps.security.outputs.has_findings == 'false' && steps.quality.outputs.has_findings == 'false'
+        run: |
+          gh pr comment ${{ github.event.pull_request.number }} --body "## 🤖 Automated PR Review
+
+          ✅ No security or code quality issues detected.
+
+          ---
+          *This is an automated review.*"
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/stale.yml b/.github/workflows/stale.yml
new file mode 100644
index 0000000..05f42e4
--- /dev/null
+++ b/.github/workflows/stale.yml
@@ -0,0 +1,63 @@
+name: Stale Issue Management
+
+on:
+  schedule:
+    # Run daily at midnight UTC
+    - cron: '0 0 * * *'
+  workflow_dispatch:
+
+permissions:
+  issues: write
+  pull-requests: write
+
+jobs:
+  stale:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/stale@v9
+        with:
+          # Issue configuration
+          days-before-stale: 30
+          days-before-close: 7
+          stale-issue-label: 'stale'
+          stale-issue-message: |
+            This issue has been automatically marked as stale because it has not had recent activity.
+
+            It will be closed in 7 days if no further activity occurs.
+
+            If this issue is still relevant:
+            - Add a comment to keep it open
+            - Add a `pinned` label to prevent automatic closure
+
+          close-issue-message: |
+            This issue has been automatically closed due to inactivity.
+
+            If this is still a valid issue, please feel free to reopen it with updated information.
+
+          # PR configuration
+          days-before-pr-stale: 14
+          days-before-pr-close: 7
+          stale-pr-label: 'stale'
+          stale-pr-message: |
+            This pull request has been automatically marked as stale because it has not had recent activity.
+
+            It will be closed in 7 days if no further activity occurs.
+
+          close-pr-message: |
+            This pull request has been automatically closed due to inactivity.
+
+            If you'd like to continue working on this, please reopen or create a new PR.
+
+          # Exempt labels
+          exempt-issue-labels: 'pinned,security,bug,help-wanted'
+          exempt-pr-labels: 'pinned,security'
+
+          # Don't stale issues/PRs with assignees
+          exempt-all-assignees: true
+
+          # Remove stale label when activity occurs
+          remove-stale-when-updated: true
+
+          # Rate limiting
+          operations-per-run: 100
diff --git a/.github/workflows/validate.yml b/.github/workflows/validate.yml
new file mode 100644
index 0000000..f47629a
--- /dev/null
+++ b/.github/workflows/validate.yml
@@ -0,0 +1,54 @@
+name: Validate
+
+on:
+  push:
+    branches: [main, 'validation/*']
+  pull_request:
+    branches: [main]
+  workflow_dispatch:
+
+jobs:
+  aqe-validation:
+    name: AQE Quality Checks
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Node.js (for markdownlint)
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+
+      - name: Install markdownlint
+        run: npm install -g markdownlint-cli
+
+      - name: Run validation checks
+        run: |
+          chmod +x .github/scripts/check.sh
+          .github/scripts/check.sh
+
+      - name: Markdown linting
+        run: markdownlint docs/**/*.md README.md CLAUDE.md CONTRIBUTING.md
+
+  documentation-structure:
+    name: Documentation Structure
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Check documentation structure
+        run: |
+          # Verify patterns documentation exists
+          test -d docs/patterns || { echo "Error: docs/patterns/ missing"; exit 1; }
+          test -f docs/README.md || { echo "Error: docs/README.md missing"; exit 1; }
+          test -d docs/adr || { echo "Error: docs/adr/ missing"; exit 1; }
+          echo "All required documentation files present"
+
+      - name: Check required files
+        run: |
+          test -f CLAUDE.md || { echo "Error: CLAUDE.md missing"; exit 1; }
+          test -f .claude/agents/codebase-agent.md || { echo "Error: codebase-agent.md missing"; exit 1; }
+          test -d .claude/context || { echo "Error: .claude/context/ missing"; exit 1; }
+          echo "All required configuration files present"
diff --git a/.markdownlint.json b/.markdownlint.json
index 25ba725..0d94d87 100644
--- a/.markdownlint.json
+++ b/.markdownlint.json
@@ -1,8 +1,11 @@
 {
   "default": true,
   "MD013": false,
+  "MD032": false,
   "MD033": false,
+  "MD034": false,
   "MD041": false,
   "MD046": false,
-  "MD051": false
+  "MD051": false,
+  "MD060": false
 }
diff --git a/CLAUDE.md b/CLAUDE.md
index ec489ad..862f0c4 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -122,6 +122,20 @@ ruff check docs/examples/
 markdownlint docs/**/*.md README.md CLAUDE.md --fix
 ```
 
+### Autonomous Quality Enforcement (AQE) Process Rule
+
+**ALWAYS run validation before showing work**:
+
+```bash
+# Run validation checks
+.github/scripts/check.sh
+
+# Auto-fix common issues
+.github/scripts/auto-fix.sh
+```
+
+This ensures all quality gates pass before presenting work to the user.
+
 ---
 
 ## Documentation Guidelines
diff --git a/pytest.ini b/pytest.ini
new file mode 100644
index 0000000..2afe20e
--- /dev/null
+++ b/pytest.ini
@@ -0,0 +1,28 @@
+[pytest]
+testpaths = tests
+python_files = test_*.py
+python_classes = Test*
+python_functions = test_*
+
+# Markers
+markers =
+    e2e: End-to-end tests (require external services)
+    unit: Unit tests (fast, isolated)
+    integration: Integration tests (may use test database)
+
+# Default options
+addopts =
+    -v
+    --tb=short
+    --strict-markers
+
+# Coverage settings (when using pytest-cov)
+# Uncomment below when pytest-cov is installed:
+# addopts =
+#     -v
+#     --tb=short
+#     --strict-markers
+#     --cov=src
+#     --cov-report=html
+#     --cov-report=term-missing
+#     --cov-fail-under=80
diff --git a/src/__init__.py b/src/__init__.py
new file mode 100644
index 0000000..801496d
--- /dev/null
+++ b/src/__init__.py
@@ -0,0 +1 @@
+"""Source package for pattern validation examples."""
diff --git a/src/core/__init__.py b/src/core/__init__.py
new file mode 100644
index 0000000..5a6df1a
--- /dev/null
+++ b/src/core/__init__.py
@@ -0,0 +1,5 @@
+"""Core utilities package."""
+
+from .security import sanitize_string, validate_slug, sanitize_path
+
+__all__ = ["sanitize_string", "validate_slug", "sanitize_path"]
diff --git a/src/core/security.py b/src/core/security.py
new file mode 100644
index 0000000..49b0118
--- /dev/null
+++ b/src/core/security.py
@@ -0,0 +1,162 @@
+"""Security utilities for input validation and sanitization.
+
+This module provides security functions as documented in the security-patterns.md.
+All input validation and sanitization happens at the API boundary.
+"""
+
+import re
+import os
+from typing import Optional
+
+
+def sanitize_string(value: Optional[str], max_length: int = 200) -> str:
+    """
+    Sanitize a string by removing dangerous characters.
+
+    Args:
+        value: The input string to sanitize
+        max_length: Maximum allowed length (default 200)
+
+    Returns:
+        Sanitized string with:
+        - Control characters removed
+        - HTML tags removed
+        - Whitespace trimmed
+        - Length enforced
+
+    Example:
+        >>> sanitize_string("  Hello<script>bad</script>World  ")
+        'HelloWorld'
+    """
+    if value is None:
+        return ""
+
+    # Convert to string if needed
+    result = str(value)
+
+    # Remove control characters (ASCII 0-31, except tab/newline)
+    result = re.sub(r'[\x00-\x08\x0b\x0c\x0e-\x1f\x7f]', '', result)
+
+    # Remove HTML tags to prevent XSS
+    result = re.sub(r'<[^>]+>', '', result)
+
+    # Trim whitespace
+    result = result.strip()
+
+    # Enforce max length
+    if len(result) > max_length:
+        result = result[:max_length]
+
+    return result
+
+
+def validate_slug(value: str) -> str:
+    """
+    Validate a URL-safe slug.
+
+    Args:
+        value: The slug to validate
+
+    Returns:
+        The validated slug (unchanged if valid)
+
+    Raises:
+        ValueError: If the slug is invalid
+
+    Valid slugs:
+    - Lowercase letters, numbers, and hyphens only
+    - Cannot start or end with hyphen
+    - Cannot have consecutive hyphens
+    - Cannot be empty
+
+    Example:
+        >>> validate_slug("valid-slug-123")
+        'valid-slug-123'
+        >>> validate_slug("Invalid!")
+        ValueError: Slug contains invalid characters
+    """
+    if not value:
+        raise ValueError("Slug cannot be empty")
+
+    if value.startswith('-'):
+        raise ValueError("Slug cannot start with hyphen")
+
+    if value.endswith('-'):
+        raise ValueError("Slug cannot end with hyphen")
+
+    if '--' in value:
+        raise ValueError("Slug cannot contain consecutive hyphens")
+
+    if value != value.lower():
+        raise ValueError("Slug must be lowercase")
+
+    # Check for valid characters (lowercase, numbers, hyphens)
+    if not re.match(r'^[a-z0-9-]+$', value):
+        raise ValueError("Slug contains invalid characters (only lowercase letters, numbers, and hyphens allowed)")
+
+    return value
+
+
+def sanitize_path(path: str) -> str:
+    """
+    Sanitize a file path to prevent path traversal attacks.
+
+    Args:
+        path: The file path to sanitize
+
+    Returns:
+        Sanitized path with:
+        - Path traversal sequences removed
+        - Null bytes removed
+        - Multiple slashes normalized
+
+    Example:
+        >>> sanitize_path("../../../etc/passwd")
+        'etc/passwd'
+        >>> sanitize_path("docs//file.md")
+        'docs/file.md'
+    """
+    if not path:
+        return ""
+
+    # Remove null bytes
+    result = path.replace('\x00', '')
+
+    # Normalize path separators
+    result = result.replace('\\', '/')
+
+    # Remove path traversal sequences
+    while '..' in result:
+        result = result.replace('..', '')
+
+    # Normalize multiple slashes
+    while '//' in result:
+        result = result.replace('//', '/')
+
+    # Remove leading slash to ensure relative path
+    result = result.lstrip('/')
+
+    return result
+
+
+def validate_environment_secret(name: str) -> Optional[str]:
+    """
+    Safely retrieve a secret from environment variables.
+
+    Args:
+        name: The environment variable name
+
+    Returns:
+        The secret value, or None if not set
+
+    Note:
+        This function demonstrates the secrets management pattern:
+        - Secrets should ONLY come from environment variables
+        - Never hardcode secrets in source code
+        - Use .env files (in .gitignore) for local development
+
+    Example:
+        >>> validate_environment_secret("API_KEY")
+        'secret-value-from-env'
+    """
+    return os.environ.get(name)
diff --git a/tests/conftest.py b/tests/conftest.py
new file mode 100644
index 0000000..f9f54b3
--- /dev/null
+++ b/tests/conftest.py
@@ -0,0 +1,41 @@
+"""Shared fixtures for testing."""
+
+import pytest
+
+
+@pytest.fixture
+def sample_string():
+    """Sample string for testing sanitization."""
+    return "Test String"
+
+
+@pytest.fixture
+def dangerous_string():
+    """String with dangerous characters for security testing."""
+    return "<script>alert('xss')</script>"
+
+
+@pytest.fixture
+def path_traversal_string():
+    """String attempting path traversal."""
+    return "../../../etc/passwd"
+
+
+@pytest.fixture
+def valid_slug():
+    """Valid URL-safe slug."""
+    return "valid-slug-123"
+
+
+@pytest.fixture
+def invalid_slugs():
+    """List of invalid slugs for testing."""
+    return [
+        "",           # empty
+        "-test",      # starts with hyphen
+        "test-",      # ends with hyphen
+        "test--name", # consecutive hyphens
+        "Test",       # uppercase
+        "test name",  # space
+        "test@name",  # special char
+    ]
diff --git a/tests/e2e/__init__.py b/tests/e2e/__init__.py
new file mode 100644
index 0000000..8b96df1
--- /dev/null
+++ b/tests/e2e/__init__.py
@@ -0,0 +1 @@
+"""End-to-end tests for complete workflows."""
diff --git a/tests/e2e/test_cba_workflow.py b/tests/e2e/test_cba_workflow.py
new file mode 100644
index 0000000..df8ad78
--- /dev/null
+++ b/tests/e2e/test_cba_workflow.py
@@ -0,0 +1,55 @@
+"""End-to-end tests for Codebase Agent workflow.
+
+These tests demonstrate the complete CBA workflow pattern.
+They are marked as e2e and require GitHub API credentials to run.
+"""
+
+import pytest
+
+
+@pytest.mark.e2e
+class TestCBAWorkflow:
+    """E2E tests for Codebase Agent automation."""
+
+    @pytest.mark.skip(reason="Requires GitHub API credentials")
+    def test_issue_to_pr_workflow(self):
+        """
+        Test complete issue-to-PR workflow.
+
+        Workflow:
+        1. Create GitHub issue with clear acceptance criteria
+        2. Apply 'ready-for-pr' label
+        3. Wait for workflow to create draft PR
+        4. Verify PR is linked to issue
+        5. Verify PR has proper description
+        6. Clean up (close PR, delete branch)
+        """
+        pass
+
+    @pytest.mark.skip(reason="Requires GitHub API credentials")
+    def test_pr_auto_review_workflow(self):
+        """
+        Test PR auto-review workflow.
+
+        Workflow:
+        1. Create PR with test changes
+        2. Wait for auto-review workflow
+        3. Verify review comment posted
+        4. Verify security issues flagged
+        5. Clean up
+        """
+        pass
+
+    @pytest.mark.skip(reason="Requires GitHub API credentials")
+    def test_dependabot_auto_merge_workflow(self):
+        """
+        Test Dependabot auto-merge workflow.
+
+        Workflow:
+        1. Simulate Dependabot patch PR
+        2. Wait for auto-merge workflow
+        3. Verify PR is auto-merged
+        4. Simulate minor update PR
+        5. Verify human review required
+        """
+        pass
diff --git a/tests/integration/__init__.py b/tests/integration/__init__.py
new file mode 100644
index 0000000..88865b8
--- /dev/null
+++ b/tests/integration/__init__.py
@@ -0,0 +1 @@
+"""Integration tests for API endpoints."""
diff --git a/tests/integration/test_validation_api.py b/tests/integration/test_validation_api.py
new file mode 100644
index 0000000..e28316e
--- /dev/null
+++ b/tests/integration/test_validation_api.py
@@ -0,0 +1,45 @@
+"""Integration tests demonstrating API boundary validation."""
+
+import pytest
+
+# Note: This is an example test structure for documentation purposes.
+# A real implementation would use FastAPI TestClient.
+
+
+class TestAPIValidation:
+    """Tests for API input validation at boundary."""
+
+    def test_valid_input_accepted(self):
+        """Valid input should be accepted and processed."""
+        # Example: POST /api/v1/items with valid data
+        # Response should be 201 Created
+        valid_data = {"name": "Test Item", "slug": "test-item"}
+        # client.post("/api/v1/items", json=valid_data)
+        # assert response.status_code == 201
+        assert valid_data["name"] == "Test Item"
+
+    def test_invalid_slug_rejected(self):
+        """Invalid slug should return 422 Unprocessable Entity."""
+        # Example: POST /api/v1/items with invalid slug
+        invalid_data = {"name": "Test", "slug": "Invalid Slug!"}
+        # response = client.post("/api/v1/items", json=invalid_data)
+        # assert response.status_code == 422
+        assert "!" in invalid_data["slug"]
+
+    def test_missing_required_field_rejected(self):
+        """Missing required field should return 422."""
+        # Example: POST /api/v1/items without name
+        incomplete_data = {"slug": "test"}
+        # response = client.post("/api/v1/items", json=incomplete_data)
+        # assert response.status_code == 422
+        assert "name" not in incomplete_data
+
+    def test_xss_attempt_sanitized(self):
+        """XSS attempt in input should be sanitized."""
+        # Example: POST /api/v1/items with XSS payload
+        xss_data = {"name": "<script>alert('xss')</script>", "slug": "test"}
+        # response = client.post("/api/v1/items", json=xss_data)
+        # data = response.json()
+        # assert "<script>" not in data["name"]
+        assert "<script>" in xss_data["name"]  # Input contains XSS
+        # After validation, it would be sanitized
diff --git a/tests/unit/__init__.py b/tests/unit/__init__.py
new file mode 100644
index 0000000..f64839d
--- /dev/null
+++ b/tests/unit/__init__.py
@@ -0,0 +1 @@
+"""Unit tests for business logic."""
diff --git a/tests/unit/test_security.py b/tests/unit/test_security.py
new file mode 100644
index 0000000..6d4095d
--- /dev/null
+++ b/tests/unit/test_security.py
@@ -0,0 +1,154 @@
+"""Unit tests for security functions."""
+
+import pytest
+from src.core.security import sanitize_string, validate_slug, sanitize_path
+
+
+class TestSanitizeString:
+    """Tests for sanitize_string function."""
+
+    def test_removes_control_characters(self):
+        """Control characters should be removed."""
+        # Arrange
+        input_str = "Hello\x00World\x1f"
+
+        # Act
+        result = sanitize_string(input_str)
+
+        # Assert
+        assert result == "HelloWorld"
+
+    def test_trims_whitespace(self):
+        """Leading and trailing whitespace should be trimmed."""
+        # Arrange
+        input_str = "  Hello World  "
+
+        # Act
+        result = sanitize_string(input_str)
+
+        # Assert
+        assert result == "Hello World"
+
+    def test_enforces_max_length(self):
+        """String should be truncated to max_length."""
+        # Arrange
+        input_str = "A" * 300
+
+        # Act
+        result = sanitize_string(input_str, max_length=200)
+
+        # Assert
+        assert len(result) == 200
+
+    def test_handles_none(self):
+        """None input should return empty string."""
+        # Act
+        result = sanitize_string(None)
+
+        # Assert
+        assert result == ""
+
+    def test_removes_html_tags(self):
+        """HTML tags should be removed to prevent XSS."""
+        # Arrange
+        input_str = "<script>alert('xss')</script>Hello"
+
+        # Act
+        result = sanitize_string(input_str)
+
+        # Assert
+        assert "<script>" not in result
+        assert "Hello" in result
+
+
+class TestValidateSlug:
+    """Tests for validate_slug function."""
+
+    def test_valid_slug_passes(self):
+        """Valid slugs should pass validation."""
+        # Arrange
+        slug = "valid-slug-123"
+
+        # Act
+        result = validate_slug(slug)
+
+        # Assert
+        assert result == slug
+
+    def test_empty_slug_raises(self):
+        """Empty slug should raise ValueError."""
+        with pytest.raises(ValueError, match="cannot be empty"):
+            validate_slug("")
+
+    def test_leading_hyphen_raises(self):
+        """Slug starting with hyphen should raise ValueError."""
+        with pytest.raises(ValueError, match="cannot start with hyphen"):
+            validate_slug("-test")
+
+    def test_trailing_hyphen_raises(self):
+        """Slug ending with hyphen should raise ValueError."""
+        with pytest.raises(ValueError, match="cannot end with hyphen"):
+            validate_slug("test-")
+
+    def test_consecutive_hyphens_raises(self):
+        """Slug with consecutive hyphens should raise ValueError."""
+        with pytest.raises(ValueError, match="consecutive hyphens"):
+            validate_slug("test--name")
+
+    def test_uppercase_raises(self):
+        """Slug with uppercase should raise ValueError."""
+        with pytest.raises(ValueError, match="lowercase"):
+            validate_slug("Test")
+
+    def test_special_characters_raises(self):
+        """Slug with special characters should raise ValueError."""
+        with pytest.raises(ValueError, match="invalid characters"):
+            validate_slug("test@name")
+
+
+class TestSanitizePath:
+    """Tests for sanitize_path function."""
+
+    def test_blocks_path_traversal(self):
+        """Path traversal attempts should be blocked."""
+        # Arrange
+        dangerous_path = "../../../etc/passwd"
+
+        # Act
+        result = sanitize_path(dangerous_path)
+
+        # Assert
+        assert ".." not in result
+
+    def test_allows_valid_path(self):
+        """Valid paths should pass through."""
+        # Arrange
+        valid_path = "docs/patterns/security.md"
+
+        # Act
+        result = sanitize_path(valid_path)
+
+        # Assert
+        assert result == valid_path
+
+    def test_normalizes_slashes(self):
+        """Multiple slashes should be normalized."""
+        # Arrange
+        path = "docs//patterns///file.md"
+
+        # Act
+        result = sanitize_path(path)
+
+        # Assert
+        assert "//" not in result
+
+    def test_removes_null_bytes(self):
+        """Null bytes should be removed."""
+        # Arrange
+        path = "docs/file\x00.md"
+
+        # Act
+        result = sanitize_path(path)
+
+        # Assert
+        assert "\x00" not in result