diff --git a/.github/scripts/generate_coverage_comment.py b/.github/scripts/generate_coverage_comment.py
new file mode 100755
index 0000000..261d136
--- /dev/null
+++ b/.github/scripts/generate_coverage_comment.py
@@ -0,0 +1,201 @@
+#!/usr/bin/env python3
+"""
+Generate coverage comment markdown from coverage data files.
+
+This script aggregates coverage data from multiple JSON files and generates
+a markdown comment suitable for posting to GitHub PRs.
+
+Usage:
+    python generate_coverage_comment.py <coverage_data_dir> <workflow_run_id> <workflow_run_url>
+
+Input JSON format (per file):
+    {
+        "pr_number": 123,
+        "component": "Backend",
+        "pr_coverage": 85.5,
+        "main_coverage": 82.0,
+        "diff": 3.5
+    }
+
+Output:
+    Markdown file written to stdout
+"""
+
+import json
+import re
+import sys
+from pathlib import Path
+from typing import Any, Dict, List
+
+
+def sanitize_component_name(name: str) -> str:
+    """
+    Sanitize component name to prevent injection attacks.
+
+    Allows only alphanumeric characters, spaces, hyphens, and underscores.
+    Truncates to 50 characters.
+    """
+    # Remove any non-safe characters and strip whitespace
+    sanitized = re.sub(r'[^a-zA-Z0-9 _-]', '', name).strip()
+    # Truncate to 50 chars
+    return sanitized[:50] if sanitized else "Unknown"
+
+
+def validate_number(value: Any, default: float = 0.0) -> float:
+    """
+    Validate that a value is a valid number.
+
+    Returns the float value if valid, otherwise returns default.
+    """
+    try:
+        num = float(value)
+        # Check if it's a valid float (not NaN, not Inf)
+        if num != num or num == float('inf') or num == float('-inf'):
+            return default
+        return num
+    except (ValueError, TypeError):
+        return default
+
+
+def format_diff(diff: float) -> str:
+    """
+    Format diff value with appropriate sign.
+
+    Args:
+        diff: The difference value (can be positive, negative, or zero)
+
+    Returns:
+        Formatted string like "+3.5%" or "-2.1%" or "0.0%"
+    """
+    if diff > 0:
+        return f"+{diff:.1f}%"
+    elif diff < 0:
+        return f"{diff:.1f}%"
+    else:
+        return "0.0%"
+
+
+def load_coverage_data(coverage_dir: Path) -> List[Dict]:
+    """
+    Load and validate coverage data from all JSON files in directory.
+
+    Args:
+        coverage_dir: Path to directory containing coverage JSON files
+
+    Returns:
+        List of validated coverage data dictionaries
+    """
+    coverage_data = []
+
+    # Find all JSON files in directory
+    json_files = list(coverage_dir.glob("*.json"))
+
+    if not json_files:
+        print("⚠️  No coverage JSON files found", file=sys.stderr)
+        return coverage_data
+
+    for json_file in json_files:
+        try:
+            with open(json_file, 'r') as f:
+                data = json.load(f)
+
+            # Validate required fields
+            component = sanitize_component_name(data.get('component', 'Unknown'))
+            pr_coverage = validate_number(data.get('pr_coverage', 0))
+            main_coverage = validate_number(data.get('main_coverage', 0))
+            diff = validate_number(data.get('diff', 0))
+
+            # Only include if we have valid data
+            if component != "Unknown" or pr_coverage > 0:
+                coverage_data.append({
+                    'component': component,
+                    'pr_coverage': pr_coverage,
+                    'main_coverage': main_coverage,
+                    'diff': diff
+                })
+
+        except (json.JSONDecodeError, IOError) as e:
+            print(f"⚠️  Failed to read {json_file}: {e}", file=sys.stderr)
+            continue
+
+    return coverage_data
+
+
+def generate_coverage_markdown(
+    coverage_data: List[Dict],
+    workflow_run_id: str,
+    workflow_run_url: str
+) -> str:
+    """
+    Generate markdown table from coverage data.
+
+    Args:
+        coverage_data: List of coverage data dictionaries
+        workflow_run_id: GitHub workflow run ID
+        workflow_run_url: GitHub workflow run URL
+
+    Returns:
+        Markdown string
+    """
+    lines = [
+        "## 📊 Test Coverage Report",
+        "",
+        "Coverage results from automated tests:",
+        "",
+        "| Component | Coverage | Change |",
+        "|-----------|----------|--------|"
+    ]
+
+    # Sort by component name for consistent ordering
+    sorted_data = sorted(coverage_data, key=lambda x: x['component'])
+
+    for item in sorted_data:
+        component = item['component']
+        pr_cov = item['pr_coverage']
+        diff = item['diff']
+        diff_display = format_diff(diff)
+
+        lines.append(f"| {component} | {pr_cov:.1f}% | {diff_display} |")
+
+    lines.extend([
+        "",
+        f"*Coverage generated from workflow run [#{workflow_run_id}]({workflow_run_url})*"
+    ])
+
+    return "\n".join(lines)
+
+
+def main():
+    """Main entry point."""
+    if len(sys.argv) != 4:
+        print("Usage: generate_coverage_comment.py <coverage_data_dir> <workflow_run_id> <workflow_run_url>", file=sys.stderr)
+        sys.exit(1)
+
+    coverage_dir = Path(sys.argv[1])
+    workflow_run_id = sys.argv[2]
+    workflow_run_url = sys.argv[3]
+
+    # Validate coverage directory exists
+    if not coverage_dir.exists():
+        print(f"❌ Coverage directory not found: {coverage_dir}", file=sys.stderr)
+        sys.exit(1)
+
+    # Load coverage data
+    coverage_data = load_coverage_data(coverage_dir)
+
+    if not coverage_data:
+        print("❌ No valid coverage data found", file=sys.stderr)
+        sys.exit(1)
+
+    # Generate markdown
+    markdown = generate_coverage_markdown(coverage_data, workflow_run_id, workflow_run_url)
+
+    # Output to stdout
+    print(markdown)
+
+    # Success message to stderr (so it doesn't pollute markdown output)
+    print(f"✅ Generated coverage comment for {len(coverage_data)} component(s)", file=sys.stderr)
+
+
+if __name__ == "__main__":
+    main()
diff --git a/.github/workflows/README.md b/.github/workflows/README.md
new file mode 100644
index 0000000..37a77da
--- /dev/null
+++ b/.github/workflows/README.md
@@ -0,0 +1,589 @@
+# GitHub Actions Workflows
+
+This directory contains GitHub Actions workflows demonstrating modern CI/CD patterns for AI-assisted development. All workflows follow best practices for security, performance, and maintainability.
+
+## Overview
+
+**Total Workflows**: 11 (10 functional + 1 demonstration)
+
+All workflows implement:
+- ✅ Concurrency controls (prevent queue backlog, save CI minutes)
+- ✅ GitHub step summaries (enhanced UX in Actions UI)
+- ✅ Minimal necessary permissions (security best practice)
+- ✅ Clear naming and documentation
+
+---
+
+## Core Validation Workflows
+
+### [ci.yml](ci.yml)
+
+**Purpose**: Documentation structure validation and repomap currency checks
+
+**Triggers**:
+- Push to `main` branch
+- Pull requests to `main`
+- Manual workflow dispatch
+
+**Jobs**:
+1. **documentation-structure** - Verifies required docs exist
+2. **repomap-validation** - Ensures `.repomap.txt` is current
+
+**Concurrency**: Cancels outdated runs (`cancel-in-progress: true`)
+
+**Why it exists**: Ensures codebase structure remains consistent and context maps are up-to-date for AI-assisted development.
+
+---
+
+### [validate.yml](validate.yml)
+
+**Purpose**: Autonomous Quality Enforcement (AQE) checks
+
+**Triggers**:
+- Push to `main` or `validation/*` branches
+- Pull requests to `main`
+- Manual workflow dispatch
+
+**Jobs**:
+1. **aqe-validation** - Quality checks via `.github/scripts/check.sh`
+2. **documentation-structure** - Documentation existence checks
+3. **validation-summary** - GitHub step summary of results
+
+**Concurrency**: Cancels outdated runs (`cancel-in-progress: true`)
+
+**Why it exists**: Enforces quality gates before human review, demonstrates AQE pattern.
+
+---
+
+### [docs-validation.yml](docs-validation.yml)
+
+**Purpose**: Documentation quality validation
+
+**Triggers**:
+- Push to `main` with doc changes (`docs/**`, `**/*.md`)
+- Pull requests to `main` with doc changes
+- Runs only when documentation files change
+
+**Jobs**:
+1. **validate-mermaid** - Validates Mermaid diagram syntax
+2. **lint-markdown** - Lints markdown files with markdownlint-cli2
+3. **validation-summary** - Summary with pass/fail status
+
+**Concurrency**: Cancels outdated runs (`cancel-in-progress: true`)
+
+**Why it exists**: User noted "Mermaid diagrams always have errors" - this catches them in CI.
+
+---
+
+## Security Workflows
+
+### [security.yml](security.yml)
+
+**Purpose**: Security scanning and vulnerability detection
+
+**Triggers**:
+- Push to `main`
+- Pull requests to `main`
+- Weekly schedule (Sunday midnight UTC)
+
+**Jobs**:
+1. **codeql** - Multi-language static analysis (Python, JavaScript)
+   - Matrix strategy for parallel execution
+   - Integrates with GitHub Security tab
+   - Uses `security-extended` query pack
+2. **security-scan** - Pattern-based security checks
+   - Secrets in documentation detection
+   - Hardcoded URL credentials detection
+   - `.env` file commit prevention
+3. **security-summary** - Consolidated results with GitHub step summary
+
+**Permissions**:
+- `contents: read` (checkout code)
+- `security-events: write` (upload CodeQL results)
+- `actions: read` (access workflow metadata)
+
+**Concurrency**: Cancels outdated runs (`cancel-in-progress: true`)
+
+**Why it exists**: Demonstrates industry-standard security scanning, finds real issues in doc examples and workflows.
+
+---
+
+## Testing Workflows
+
+### [e2e-pattern-tests.yml](e2e-pattern-tests.yml)
+
+**Purpose**: End-to-end validation of all 11 pattern implementations
+
+**Triggers**:
+- Push to `main` (when patterns, workflows, or E2E test scripts change)
+- Pull requests to `main` (same path filters)
+- Manual workflow dispatch
+
+**Path Filters**: Optimized to run only when relevant files change:
+- Pattern documentation (`docs/patterns/**`)
+- Workflow files (`.github/workflows/**`) - patterns reference actual workflows
+- E2E test scripts (`.github/scripts/e2e-tests/**`)
+
+⚠️ **Path Filter Limitation**: If test logic changes in ways not covered by these paths (e.g., updating test expectations in untracked files), tests won't auto-trigger. Use `workflow_dispatch` (manual trigger) for comprehensive validation in these cases.
+
+**Jobs**:
+- **pattern-1-aqe** through **pattern-11-testing** (parallel execution)
+- **summary** - Consolidated results table with pass/fail status
+
+**Test Patterns**:
+1. AQE (Autonomous Quality Enforcement)
+2. CBA (Codebase Agent)
+3. Dependabot
+4. GitHub Actions
+5. Issue-to-PR
+6. Multi-Agent
+7. PR Review
+8. Security
+9. Self-Review
+10. Stale Management
+11. Testing
+
+**Concurrency**: Cancels outdated runs (`cancel-in-progress: true`)
+
+**Why it exists**: Ensures all pattern documentation is accurate and examples work correctly.
+
+---
+
+## Automation Workflows
+
+### [issue-to-pr.yml](issue-to-pr.yml)
+
+**Purpose**: Converts labeled issues to draft PRs automatically
+
+**Triggers**:
+- Issue labeled with `ready-for-pr`
+
+**Workflow**:
+1. Analyzes issue for clarity (acceptance criteria, requirements)
+2. If vague: Requests clarification via comment
+3. If clear: Creates feature branch and draft PR
+
+**Permissions**:
+- `contents: write` (create branches)
+- `pull-requests: write` (create PRs)
+- `issues: write` (post comments)
+
+**Concurrency**: Does NOT cancel in-progress (`cancel-in-progress: false`)
+- Rationale: Don't interrupt PR creation mid-process
+
+**Why it exists**: Demonstrates Issue-to-PR automation pattern.
+
+---
+
+### [pr-review.yml](pr-review.yml)
+
+**Purpose**: Automated PR security and quality reviews
+
+**Triggers**:
+- PR opened, synchronized, or marked ready for review
+- Skips draft PRs and PRs with `skip-review` label
+
+**Checks**:
+1. **Security Review**:
+   - Hardcoded secrets detection
+   - `.env` file additions
+   - TODOs in security-sensitive code
+2. **Code Quality Review**:
+   - Large file changes (>100 lines)
+   - Missing test coverage
+
+**Permissions**:
+- `contents: read` (read code)
+- `pull-requests: write` (post comments)
+
+**Concurrency**: Cancels outdated runs (`cancel-in-progress: true`)
+- Rationale: Re-review on each push, cancel old reviews
+
+**Why it exists**: Provides fast automated feedback before human review.
+
+---
+
+### [dependabot-auto-merge.yml](dependabot-auto-merge.yml)
+
+**Purpose**: Automatically merges Dependabot patch updates
+
+**Triggers**:
+- Pull request opened, synchronized, reopened, or labeled
+- Only processes PRs from `dependabot[bot]`
+
+**Strategy**:
+- **Auto-merge**: `semver-patch` updates (e.g., 1.2.3 → 1.2.4)
+- **Comment only**: `semver-minor` and `semver-major` updates (requires human review)
+
+**Permissions**:
+- `contents: write` (merge PRs)
+- `pull-requests: write` (post comments)
+
+**Concurrency**: Does NOT cancel in-progress (`cancel-in-progress: false`)
+- Rationale: Don't interrupt merge operations
+
+**Why it exists**: Reduces maintenance burden for low-risk dependency updates.
+
+---
+
+### [stale.yml](stale.yml)
+
+**Purpose**: Automated stale issue and PR management
+
+**Triggers**:
+- Daily at midnight UTC
+- Manual workflow dispatch
+
+**Configuration**:
+- **Issues**: 30 days inactive → stale, 7 days stale → close
+- **PRs**: 14 days inactive → stale, 7 days stale → close
+- **Exemptions**: Issues/PRs with `pinned`, `security`, `bug`, `help-wanted` labels
+- **Assignees**: Never mark as stale if assigned
+
+**Permissions**:
+- `issues: write` (label/close issues)
+- `pull-requests: write` (label/close PRs)
+
+**Concurrency**: Does NOT cancel in-progress (`cancel-in-progress: false`)
+- Rationale: Scheduled jobs should complete, not race with each other
+
+**Why it exists**: Keeps issue tracker clean without manual triage.
+
+---
+
+## Deployment Workflows
+
+### [deploy-docs.yml](deploy-docs.yml)
+
+**Purpose**: Deploys documentation to GitHub Pages
+
+**Triggers**:
+- Push to `main` with doc changes (`docs/**`, `mkdocs.yml`, workflow file)
+- Manual workflow dispatch
+
+**Jobs**:
+1. **build** - Builds MkDocs site with Material theme
+2. **deploy** - Deploys to GitHub Pages
+
+**Permissions**:
+- `contents: read` (read documentation)
+- `pages: write` (deploy to GitHub Pages)
+- `id-token: write` (OIDC for deployment)
+
+**Concurrency**:
+- Group: `pages`
+- Does NOT cancel in-progress (`cancel-in-progress: false`)
+- Rationale: Complete deployment before starting new one
+
+**Why it exists**: Automatically publishes documentation changes to public site.
+
+---
+
+## Demonstration Workflows
+
+### [coverage-comment.yml](coverage-comment.yml) ⚠️ DEMONSTRATION ONLY
+
+**Purpose**: Demonstrates fork PR coverage comment pattern
+
+**Status**: **NOT FUNCTIONAL** - Requires coverage collection to be added to test workflows
+
+**Triggers**:
+- After `E2E Pattern Tests` workflow completes
+
+**Pattern Demonstrated**:
+1. **Fork PR Support**: Uses `workflow_run` trigger for write permissions
+2. **Security Validation**: Validates PR number to prevent cross-PR injection
+3. **Update-or-Create**: Updates existing comment or creates new one
+4. **Graceful Degradation**: Skips comment if no coverage data available
+
+**Why it exists**: Shows template users how to implement coverage comments that work with fork PRs.
+
+**To enable**:
+1. Add coverage collection to test workflows (pytest --cov, jest --coverage)
+2. Upload coverage data as artifacts with pattern `coverage-data-*`
+3. Include JSON fields: `pr_number`, `component`, `pr_coverage`, `main_coverage`, `diff`
+
+See workflow file header for detailed implementation instructions.
+
+---
+
+## Pattern Highlights
+
+### 1. Concurrency Control Pattern
+
+All workflows use concurrency controls to prevent queue backlog and save CI minutes:
+
+```yaml
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true  # or false, depending on workflow type
+```
+
+**When to cancel**:
+- ✅ Validation/test workflows (ci.yml, validate.yml, e2e-pattern-tests.yml)
+- ✅ Review workflows (pr-review.yml)
+- ❌ Creation workflows (issue-to-pr.yml, dependabot-auto-merge.yml)
+- ❌ Scheduled workflows (stale.yml)
+- ❌ Deployment workflows (deploy-docs.yml)
+
+### 2. GitHub Step Summary Pattern
+
+Key workflows generate rich summaries visible in the Actions UI:
+
+```yaml
+- name: Generate summary
+  if: always()
+  run: |
+    {
+      echo "## 🎯 Workflow Results"
+      echo ""
+      echo "| Check | Status |"
+      echo "|-------|--------|"
+      echo "| Job 1 | ${{ needs.job1.result == 'success' && '✅ Passed' || '❌ Failed' }} |"
+    } >> "$GITHUB_STEP_SUMMARY"
+```
+
+**Workflows with summaries**:
+- e2e-pattern-tests.yml (11-pattern table)
+- validate.yml (AQE validation results)
+- docs-validation.yml (Mermaid + markdown lint results)
+- security.yml (CodeQL + security scan results)
+
+### 3. Fork PR Support Pattern
+
+**Problem**: Fork PRs have limited permissions (can't write comments/statuses)
+
+**Solution**: Use `workflow_run` trigger (demonstrated in coverage-comment.yml)
+
+```yaml
+on:
+  workflow_run:
+    workflows: ["Tests"]
+    types: [completed]
+
+jobs:
+  post-comment:
+    if: >
+      github.event.workflow_run.event == 'pull_request' &&
+      github.event.workflow_run.conclusion == 'success'
+```
+
+**Security**: Always validate PR number from artifact matches trusted PR number.
+
+### 4. Matrix Strategy Pattern
+
+Multi-language/version testing with parallel execution:
+
+```yaml
+strategy:
+  fail-fast: false
+  matrix:
+    language: ['python', 'javascript']
+```
+
+Used in: security.yml (CodeQL for Python and JavaScript)
+
+### 5. CodeQL Customization Pattern
+
+**IMPORTANT**: This is a template repository - customize CodeQL for YOUR project!
+
+#### Template Configuration (Current)
+
+```yaml
+codeql:
+  continue-on-error: true  # Allows workflow to succeed even if language has no code
+  strategy:
+    matrix:
+      language: ['python', 'javascript']  # Demo languages for template
+```
+
+**Why `continue-on-error: true` in this template**:
+- This repo is documentation-only with minimal Python scripts
+- No JavaScript/TypeScript code exists
+- Template demonstrates pattern for projects that DO use these languages
+- Without `continue-on-error`, JavaScript analysis would fail (no code to analyze)
+
+#### Customization for YOUR Project
+
+##### Step 1: Update Language Matrix
+
+Match the languages in YOUR codebase:
+
+```yaml
+# Example for a Python + TypeScript project:
+matrix:
+  language: ['python', 'typescript']
+
+# Example for a Go + Java project:
+matrix:
+  language: ['go', 'java']
+```
+
+**Supported languages**:
+- `python` - Python code
+- `javascript` - JavaScript/Node.js code
+- `typescript` - TypeScript code (includes .js and .ts files)
+- `java` - Java code
+- `cpp` - C/C++ code
+- `csharp` - C# code
+- `go` - Go code
+- `ruby` - Ruby code
+- `swift` - Swift code
+- `kotlin` - Kotlin code
+
+##### Step 2: Set `continue-on-error` Appropriately
+
+| Use Case | Setting | Rationale |
+|----------|---------|-----------|
+| **Production application** | `continue-on-error: false` | Fail workflow if security analysis fails - strict enforcement |
+| **Template/reference repo** | `continue-on-error: true` | Allow success even if language has no code |
+| **Multi-language monorepo** | `continue-on-error: false` | All declared languages should have code |
+
+**Recommended for most projects**:
+
+```yaml
+codeql:
+  continue-on-error: false  # Strict - fail if any analysis fails
+```
+
+##### Step 3: Remove Unused Languages
+
+Only include languages you actually use:
+
+```yaml
+# ❌ DON'T: Include languages you don't use
+matrix:
+  language: ['python', 'javascript', 'java', 'go']  # But you only use Python!
+
+# ✅ DO: Only include languages in your codebase
+matrix:
+  language: ['python']  # Just Python - faster analysis, clearer results
+```
+
+#### Example Configurations
+
+**FastAPI Backend (Python only)**:
+
+```yaml
+codeql:
+  continue-on-error: false
+  strategy:
+    matrix:
+      language: ['python']
+```
+
+**React + Node.js App (TypeScript + JavaScript)**:
+
+```yaml
+codeql:
+  continue-on-error: false
+  strategy:
+    matrix:
+      language: ['typescript']  # Includes both .ts and .js files
+```
+
+**Microservices Monorepo (Go + Python)**:
+
+```yaml
+codeql:
+  continue-on-error: false
+  strategy:
+    matrix:
+      language: ['go', 'python']
+```
+
+#### Path Filters for CodeQL
+
+The security.yml workflow includes path filters to avoid unnecessary runs:
+
+```yaml
+paths:
+  - '**/*.py'
+  - '**/*.js'
+  - '**/*.ts'
+  - '**/*.tsx'
+  - '.github/workflows/security.yml'
+```
+
+**Customize these** if you add other languages:
+
+```yaml
+# Example: Add Go and Java patterns
+paths:
+  - '**/*.py'
+  - '**/*.go'
+  - '**/*.java'
+  - '.github/workflows/security.yml'
+```
+
+#### Troubleshooting CodeQL
+
+**"No source code seen during build"**:
+- CodeQL couldn't find code for the specified language
+- **Solution**: Remove that language from the matrix OR add `continue-on-error: true`
+
+**"CodeQL analysis timed out"**:
+- Large codebase exceeding timeout
+- **Solution**: Increase `timeout-minutes` or split into separate workflows
+
+**"Insufficient permissions"**:
+- Missing `security-events: write` permission
+- **Solution**: Already configured correctly in this template
+
+---
+
+## Best Practices Demonstrated
+
+1. **Minimal Permissions**: Each workflow requests only necessary permissions
+2. **Concurrency Controls**: Prevent queue backlog, save CI minutes
+3. **Clear Naming**: Job and step names clearly describe what they do
+4. **GitHub Step Summaries**: Enhanced UX in Actions UI
+5. **Security Validation**: Input sanitization, credential detection
+6. **Graceful Degradation**: Workflows handle missing files/data gracefully
+7. **Documentation**: Inline comments explain complex logic
+8. **Semantic Triggers**: Workflows trigger only when relevant files change
+
+---
+
+## Maintenance Guidelines
+
+### When to Update Workflows
+
+1. **Adding new patterns**: Add test job to e2e-pattern-tests.yml
+2. **Changing documentation structure**: Update ci.yml and validate.yml checks
+3. **Adding new languages**: Update security.yml CodeQL matrix
+4. **Modifying permissions**: Review security implications carefully
+
+### Testing Workflow Changes
+
+1. **Syntax validation**: Use `actionlint` (recommended)
+2. **Test in PR**: All workflows run on PRs, verify they work
+3. **Check step summaries**: Ensure summaries render correctly
+4. **Review permissions**: Ensure minimal necessary permissions
+
+### Common Issues
+
+- **"Resource not accessible by integration"**: Insufficient permissions
+- **"Concurrency group conflicts"**: Multiple workflows with same group
+- **"Required status checks not found"**: Branch protection referencing old job names
+- **"Mermaid syntax errors"**: Run `./scripts/validate-mermaid.sh` locally
+- **"Permission denied" when running scripts**: Ensure scripts are committed with executable permissions (`git add --chmod=+x script.sh` or `chmod +x script.sh && git add script.sh`). Workflows no longer use `chmod +x` inline, relying on git-tracked executable bits.
+
+---
+
+## Reference Documentation
+
+- [GitHub Actions Documentation](https://docs.github.com/en/actions)
+- [Workflow syntax reference](https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions)
+- [Security hardening for Actions](https://docs.github.com/en/actions/security-guides/security-hardening-for-github-actions)
+- [CodeQL documentation](https://codeql.github.com/docs/)
+- [actionlint - Workflow linter](https://github.com/rhysd/actionlint)
+
+---
+
+## Questions or Issues?
+
+- Review workflow file headers for detailed implementation notes
+- Check [CLAUDE.md](../../CLAUDE.md) for repository standards
+- See [docs/patterns/](../../docs/patterns/) for pattern documentation
+- Open an issue for workflow-specific questions
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c02b1f3..a3ee17c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -7,9 +7,14 @@ on:
     branches: [main]
   workflow_dispatch:
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true  # Cancel outdated validation runs on new pushes
+
 jobs:
   documentation-structure:
     runs-on: ubuntu-latest
+    timeout-minutes: 10
 
     steps:
       - uses: actions/checkout@v4
@@ -24,6 +29,7 @@ jobs:
 
   repomap-validation:
     runs-on: ubuntu-latest
+    timeout-minutes: 15
 
     steps:
       - uses: actions/checkout@v4
@@ -32,14 +38,14 @@ jobs:
         uses: actions/setup-python@v5
         with:
           python-version: '3.11'
+          cache: 'pip'
 
       - name: Install repomap dependencies
         run: |
           pip install uv
-          uv pip install tree-sitter tree-sitter-python tree-sitter-javascript \
+          # Use --system flag since we're not in a virtual environment
+          uv pip install --system tree-sitter tree-sitter-python tree-sitter-javascript \
                          tree-sitter-typescript tree-sitter-go tree-sitter-bash
 
       - name: Validate repomap is current
-        run: |
-          chmod +x scripts/update-repomap.sh
-          ./scripts/update-repomap.sh --check
+        run: ./scripts/update-repomap.sh --check
diff --git a/.github/workflows/coverage-comment.yml b/.github/workflows/coverage-comment.yml
new file mode 100644
index 0000000..587bdd6
--- /dev/null
+++ b/.github/workflows/coverage-comment.yml
@@ -0,0 +1,212 @@
+name: Coverage Comment
+
+# DEMONSTRATION WORKFLOW - NOT FUNCTIONAL WITHOUT COVERAGE COLLECTION
+#
+# This workflow demonstrates fork PR coverage comment patterns using workflow_run trigger.
+# It shows best practices for:
+#   - Supporting fork PRs with write permissions (workflow_run pattern)
+#   - Security validation to prevent cross-PR comment injection
+#   - Update-or-create pattern for coverage comments
+#   - Graceful handling of missing coverage data
+#
+# To enable for your repository:
+#   1. Add coverage collection to your test workflow (e.g., pytest --cov, jest --coverage)
+#   2. Upload coverage data as artifacts with pattern: coverage-data-*
+#   3. Include these fields in JSON artifacts:
+#      - pr_number: PR number from the test workflow
+#      - component: Component name (e.g., "Backend", "Frontend")
+#      - pr_coverage: Coverage percentage for this PR
+#      - main_coverage: Coverage percentage on main branch
+#      - diff: Difference (pr_coverage - main_coverage)
+#
+# See docs/patterns/coverage-reporting.md for implementation details (when documented)
+
+on:
+  workflow_run:
+    workflows: ["E2E Pattern Tests"]
+    types: [completed]
+
+permissions:
+  pull-requests: write
+  actions: read
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.workflow_run.head_sha }}
+  cancel-in-progress: false  # Process all coverage data for this commit
+
+jobs:
+  post-coverage-comment:
+    name: Post Coverage Comment
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+    if: >
+      github.event.workflow_run.event == 'pull_request' &&
+      github.event.workflow_run.conclusion == 'success'
+
+    steps:
+      - name: Get PR number from workflow run
+        id: get-pr
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          set -euo pipefail
+          # Two-tier PR detection approach for maximum reliability
+          # Tier 1: Use workflow_run.pull_requests (works for same-repo PRs)
+          PR_NUMBER=$(echo '${{ toJSON(github.event.workflow_run.pull_requests) }}' | jq -r '.[0].number // ""')
+
+          # Tier 2: Fallback to branch lookup for fork PRs
+          if [ -z "$PR_NUMBER" ]; then
+            echo "PR not found in workflow_run.pull_requests, trying branch lookup..."
+            PR_NUMBER=$(gh pr view "${{ github.event.workflow_run.head_branch }}" \
+              --repo ${{ github.repository }} \
+              --json number \
+              --jq '.number' 2>/dev/null || echo "")
+          fi
+
+          if [ -z "$PR_NUMBER" ]; then
+            echo "No PR found for branch ${{ github.event.workflow_run.head_branch }}"
+            exit 1
+          fi
+
+          echo "pr_number=$PR_NUMBER" >> "$GITHUB_OUTPUT"
+          echo "Found PR #$PR_NUMBER"
+
+      - name: Download coverage artifacts
+        uses: actions/download-artifact@v4
+        with:
+          run-id: ${{ github.event.workflow_run.id }}
+          github-token: ${{ github.token }}
+          pattern: coverage-data-*
+          path: coverage-data
+          merge-multiple: true
+
+      - name: Check for coverage data
+        id: check-coverage
+        run: |
+          set -euo pipefail
+          if [ -d "coverage-data" ] && [ "$(ls -A coverage-data/*.json 2>/dev/null)" ]; then
+            echo "has_coverage=true" >> "$GITHUB_OUTPUT"
+            echo "Coverage data found"
+          else
+            echo "has_coverage=false" >> "$GITHUB_OUTPUT"
+            echo "No coverage data found - skipping comment"
+          fi
+
+      - name: Security validation
+        if: steps.check-coverage.outputs.has_coverage == 'true'
+        run: |
+          set -euo pipefail
+          # Validate that PR number from artifact matches the trusted PR number
+          # This prevents cross-PR comment injection attacks
+          for coverage_file in coverage-data/*.json; do
+            if [ -f "$coverage_file" ]; then
+              # Validate PR number is numeric to prevent injection
+              ARTIFACT_PR_NUMBER=$(jq -r '.pr_number // ""' "$coverage_file" | grep -E '^[0-9]+$' || echo "")
+              TRUSTED_PR_NUMBER="${{ steps.get-pr.outputs.pr_number }}"
+
+              if [ -z "$ARTIFACT_PR_NUMBER" ]; then
+                echo "Warning: Invalid or missing pr_number in $coverage_file"
+                continue
+              fi
+
+              if [ "$ARTIFACT_PR_NUMBER" != "$TRUSTED_PR_NUMBER" ]; then
+                echo "Security violation: PR number mismatch"
+                echo "Artifact claims PR #$ARTIFACT_PR_NUMBER but workflow ran for PR #$TRUSTED_PR_NUMBER"
+                exit 1
+              fi
+            fi
+          done
+          echo "Security validation passed"
+
+      - name: Checkout repository
+        if: steps.check-coverage.outputs.has_coverage == 'true'
+        uses: actions/checkout@v4
+
+      - name: Setup Python
+        if: steps.check-coverage.outputs.has_coverage == 'true'
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
+
+      - name: Generate coverage comment
+        if: steps.check-coverage.outputs.has_coverage == 'true'
+        id: generate-comment
+        run: |
+          set -euo pipefail
+          # Use Python script for cleaner, more maintainable coverage comment generation
+          COMMENT_FILE="coverage-comment.md"
+
+          python .github/scripts/generate_coverage_comment.py \
+            coverage-data \
+            "${{ github.event.workflow_run.id }}" \
+            "${{ github.event.workflow_run.html_url }}" \
+            > "$COMMENT_FILE"
+
+          # Store comment file path in output
+          echo "comment_file=$COMMENT_FILE" >> "$GITHUB_OUTPUT"
+
+      - name: Find existing coverage comment
+        if: steps.check-coverage.outputs.has_coverage == 'true'
+        id: find-comment
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          set -euo pipefail
+          # Find existing coverage comment by looking for our marker
+          COMMENT_ID=$(gh api \
+            "repos/${{ github.repository }}/issues/${{ steps.get-pr.outputs.pr_number }}/comments" \
+            --jq '.[] | select(.body | contains("📊 Test Coverage Report")) | .id' \
+            | head -n 1)
+
+          if [ -n "$COMMENT_ID" ]; then
+            echo "existing_comment_id=$COMMENT_ID" >> "$GITHUB_OUTPUT"
+            echo "Found existing coverage comment: $COMMENT_ID"
+          else
+            echo "No existing coverage comment found"
+          fi
+
+      - name: Update or create coverage comment
+        if: steps.check-coverage.outputs.has_coverage == 'true'
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          set -euo pipefail
+          COMMENT_BODY=$(cat "${{ steps.generate-comment.outputs.comment_file }}")
+
+          if [ -n "${{ steps.find-comment.outputs.existing_comment_id }}" ]; then
+            # Try to update existing comment, with fallback to create if it was deleted
+            echo "Attempting to update existing comment #${{ steps.find-comment.outputs.existing_comment_id }}..."
+            if gh api \
+              --method PATCH \
+              "repos/${{ github.repository }}/issues/comments/${{ steps.find-comment.outputs.existing_comment_id }}" \
+              -f body="$COMMENT_BODY" 2>/dev/null; then
+              echo "✅ Updated existing coverage comment"
+            else
+              # Comment may have been deleted or is inaccessible - create new one
+              echo "⚠️  Failed to update comment (may have been deleted), creating new comment instead..."
+              gh pr comment ${{ steps.get-pr.outputs.pr_number }} \
+                --repo ${{ github.repository }} \
+                --body "$COMMENT_BODY"
+              echo "✅ Created new coverage comment"
+            fi
+          else
+            # Create new comment
+            gh pr comment ${{ steps.get-pr.outputs.pr_number }} \
+              --repo ${{ github.repository }} \
+              --body "$COMMENT_BODY"
+            echo "✅ Created new coverage comment"
+          fi
+
+      - name: Generate summary
+        if: always()
+        run: |
+          set -euo pipefail
+          {
+            echo "## 📊 Coverage Comment Status"
+            echo ""
+            if [ "${{ steps.check-coverage.outputs.has_coverage }}" == "true" ]; then
+              echo "✅ Coverage comment posted to PR #${{ steps.get-pr.outputs.pr_number }}"
+            else
+              echo "⏭️ No coverage data available - comment skipped"
+            fi
+          } >> "$GITHUB_STEP_SUMMARY"
diff --git a/.github/workflows/dependabot-auto-merge.yml b/.github/workflows/dependabot-auto-merge.yml
index 2243e4f..f538c75 100644
--- a/.github/workflows/dependabot-auto-merge.yml
+++ b/.github/workflows/dependabot-auto-merge.yml
@@ -8,9 +8,14 @@ permissions:
   contents: write
   pull-requests: write
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: false  # Don't cancel merge operations mid-process
+
 jobs:
   auto-merge:
     runs-on: ubuntu-latest
+    timeout-minutes: 10
     if: github.actor == 'dependabot[bot]'
 
     steps:
@@ -22,16 +27,44 @@ jobs:
 
       - 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 }}
+          PR_TITLE: ${{ github.event.pull_request.title }}
+          PR_URL: ${{ github.event.pull_request.html_url }}
+        run: |
+          set -euo pipefail
+          echo "Auto-merging patch update: $PR_TITLE"
+          gh pr merge --auto --squash "$PR_URL"
 
       - name: Comment on minor/major updates
         if: steps.metadata.outputs.update-type != 'version-update:semver-patch'
         run: |
+          set -euo pipefail
           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 }}
+
+      - name: Generate summary
+        if: always()
+        env:
+          PR_TITLE: ${{ github.event.pull_request.title }}
+          UPDATE_TYPE: ${{ steps.metadata.outputs.update-type }}
+        run: |
+          set -euo pipefail
+          {
+            echo "## 🤖 Dependabot Auto-Merge"
+            echo ""
+            echo "**PR**: $PR_TITLE"
+            echo "**Update Type**: $UPDATE_TYPE"
+            echo ""
+            if [ "${{ steps.metadata.outputs.update-type }}" == "version-update:semver-patch" ]; then
+              echo "**Decision**: ✅ Auto-merged (patch update)"
+              echo ""
+              echo "Patch updates are automatically merged after CI passes."
+            else
+              echo "**Decision**: ⏸️ Requires human review"
+              echo ""
+              echo "Minor and major updates require manual approval for safety."
+            fi
+          } >> "$GITHUB_STEP_SUMMARY"
diff --git a/.github/workflows/deploy-docs.yml b/.github/workflows/deploy-docs.yml
index 3af7708..0d7ddf1 100644
--- a/.github/workflows/deploy-docs.yml
+++ b/.github/workflows/deploy-docs.yml
@@ -16,11 +16,12 @@ permissions:
 
 concurrency:
   group: "pages"
-  cancel-in-progress: false
+  cancel-in-progress: false  # Complete deployment before starting new one
 
 jobs:
   build:
     runs-on: ubuntu-latest
+    timeout-minutes: 15
     steps:
       - uses: actions/checkout@v4
         with:
@@ -30,6 +31,7 @@ jobs:
         uses: actions/setup-python@v5
         with:
           python-version: "3.11"
+          cache: 'pip'
 
       - name: Install dependencies
         run: |
@@ -48,8 +50,32 @@ jobs:
       name: github-pages
       url: ${{ steps.deployment.outputs.page_url }}
     runs-on: ubuntu-latest
+    timeout-minutes: 10
     needs: build
     steps:
       - name: Deploy to GitHub Pages
         id: deployment
         uses: actions/deploy-pages@v4
+
+  docs-deployment-summary:
+    runs-on: ubuntu-latest
+    timeout-minutes: 5
+    needs: [build, deploy]
+    if: always()
+    steps:
+      - name: Generate summary
+        run: |
+          {
+            echo "## 📚 Documentation Deployment"
+            echo ""
+            echo "| Step | Status |"
+            echo "|------|--------|"
+            echo "| Build | ${{ needs.build.result == 'success' && '✅ Success' || '❌ Failed' }} |"
+            echo "| Deploy | ${{ needs.deploy.result == 'success' && '✅ Success' || '❌ Failed' }} |"
+            echo ""
+            if [ "${{ needs.deploy.result }}" == "success" ]; then
+              echo "**Status**: ✅ Deployment successful"
+            else
+              echo "**Status**: ❌ Deployment failed"
+            fi
+          } >> "$GITHUB_STEP_SUMMARY"
diff --git a/.github/workflows/docs-validation.yml b/.github/workflows/docs-validation.yml
index 74d75af..5a50795 100644
--- a/.github/workflows/docs-validation.yml
+++ b/.github/workflows/docs-validation.yml
@@ -12,9 +12,14 @@ on:
       - "docs/**"
       - "**/*.md"
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   validate-mermaid:
     runs-on: ubuntu-latest
+    timeout-minutes: 15
 
     steps:
       - uses: actions/checkout@v4
@@ -25,7 +30,6 @@ jobs:
       - name: Validate Mermaid diagrams
         run: |
           if [ -f scripts/validate-mermaid.sh ]; then
-            chmod +x scripts/validate-mermaid.sh
             ./scripts/validate-mermaid.sh
           else
             echo "No Mermaid diagrams to validate"
@@ -35,6 +39,7 @@ jobs:
 
   lint-markdown:
     runs-on: ubuntu-latest
+    timeout-minutes: 10
 
     steps:
       - uses: actions/checkout@v4
@@ -44,3 +49,29 @@ jobs:
         with:
           globs: "**/*.md"
           config: ".markdownlint.json"
+
+  docs-validation-summary:
+    runs-on: ubuntu-latest
+    timeout-minutes: 5
+    needs: [validate-mermaid, lint-markdown]
+    if: always()
+
+    steps:
+      - name: Generate summary
+        run: |
+          {
+            echo "## 📝 Documentation Validation Results"
+            echo ""
+            echo "| Check | Status |"
+            echo "|-------|--------|"
+            echo "| Mermaid Diagrams | ${{ needs.validate-mermaid.result == 'success' && '✅ Passed' || needs.validate-mermaid.result == 'skipped' && '⏭️ Skipped' || '❌ Failed' }} |"
+            echo "| Markdown Linting | ${{ needs.lint-markdown.result == 'success' && '✅ Passed' || '❌ Failed' }} |"
+            echo ""
+            if [ "${{ needs.validate-mermaid.result }}" == "failure" ] || [ "${{ needs.lint-markdown.result }}" == "failure" ]; then
+              echo "**Status**: ❌ Validation failed"
+              echo ""
+              echo "*Review the logs above for detailed error messages*"
+            else
+              echo "**Status**: ✅ All documentation validation checks passed"
+            fi
+          } >> "$GITHUB_STEP_SUMMARY"
diff --git a/.github/workflows/e2e-pattern-tests.yml b/.github/workflows/e2e-pattern-tests.yml
index fc66a65..9387141 100644
--- a/.github/workflows/e2e-pattern-tests.yml
+++ b/.github/workflows/e2e-pattern-tests.yml
@@ -3,136 +3,149 @@ name: E2E Pattern Tests
 on:
   push:
     branches: [main]
+    paths:
+      # Path filters optimize CI by only running when relevant files change
+      # These filters run E2E tests when:
+      #   - Pattern documentation changes (docs/patterns/**)
+      #   - Workflow files change (patterns reference actual workflows)
+      #   - Any GitHub scripts change (includes E2E tests, AQE check.sh, auto-fix.sh, etc.)
+      # BENEFIT: Saves CI minutes for unrelated changes (docs/adr, README updates)
+      # COVERAGE: Catches when referenced workflows/scripts are modified
+      # MANUAL OVERRIDE: workflow_dispatch available for comprehensive validation
+      - 'docs/patterns/**'
+      - '.github/workflows/**'
+      - '.github/scripts/**'
   pull_request:
     branches: [main]
+    paths:
+      # Same path filters as push (see comments above)
+      - 'docs/patterns/**'
+      - '.github/workflows/**'
+      - '.github/scripts/**'
   workflow_dispatch:
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   pattern-1-aqe:
     name: Pattern 1 - AQE
     runs-on: ubuntu-latest
+    timeout-minutes: 15
     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
+        run: .github/scripts/e2e-tests/test-pattern-1-aqe.sh
 
   pattern-2-cba:
     name: Pattern 2 - CBA
     runs-on: ubuntu-latest
+    timeout-minutes: 15
     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
+        run: .github/scripts/e2e-tests/test-pattern-2-cba.sh
 
   pattern-3-dependabot:
     name: Pattern 3 - Dependabot
     runs-on: ubuntu-latest
+    timeout-minutes: 15
     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
+        run: .github/scripts/e2e-tests/test-pattern-3-dependabot.sh
 
   pattern-4-gha:
     name: Pattern 4 - GHA
     runs-on: ubuntu-latest
+    timeout-minutes: 15
     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
+        run: .github/scripts/e2e-tests/test-pattern-4-gha.sh
 
   pattern-5-issue-to-pr:
     name: Pattern 5 - Issue-to-PR
     runs-on: ubuntu-latest
+    timeout-minutes: 15
     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
+        run: .github/scripts/e2e-tests/test-pattern-5-issue-to-pr.sh
 
   pattern-6-multi-agent:
     name: Pattern 6 - Multi-Agent
     runs-on: ubuntu-latest
+    timeout-minutes: 15
     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
+        run: .github/scripts/e2e-tests/test-pattern-6-multi-agent.sh
 
   pattern-7-pr-review:
     name: Pattern 7 - PR Review
     runs-on: ubuntu-latest
+    timeout-minutes: 15
     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
+        run: .github/scripts/e2e-tests/test-pattern-7-pr-review.sh
 
   pattern-8-security:
     name: Pattern 8 - Security
     runs-on: ubuntu-latest
+    timeout-minutes: 15
     steps:
       - uses: actions/checkout@v4
       - name: Setup Python
         uses: actions/setup-python@v5
         with:
           python-version: '3.11'
+          cache: 'pip'
       - 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
+        run: .github/scripts/e2e-tests/test-pattern-8-security.sh
 
   pattern-9-self-review:
     name: Pattern 9 - Self-Review
     runs-on: ubuntu-latest
+    timeout-minutes: 15
     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
+        run: .github/scripts/e2e-tests/test-pattern-9-self-review.sh
 
   pattern-10-stale:
     name: Pattern 10 - Stale
     runs-on: ubuntu-latest
+    timeout-minutes: 15
     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
+        run: .github/scripts/e2e-tests/test-pattern-10-stale.sh
 
   pattern-11-testing:
     name: Pattern 11 - Testing
     runs-on: ubuntu-latest
+    timeout-minutes: 15
     steps:
       - uses: actions/checkout@v4
       - name: Setup Python
         uses: actions/setup-python@v5
         with:
           python-version: '3.11'
+          cache: 'pip'
       - 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
+        run: .github/scripts/e2e-tests/test-pattern-11-testing.sh
 
-  summary:
+  e2e-test-summary:
     name: E2E Test Summary
     runs-on: ubuntu-latest
+    timeout-minutes: 5
     needs:
       - pattern-1-aqe
       - pattern-2-cba
@@ -149,6 +162,27 @@ jobs:
     steps:
       - name: Check results
         run: |
+          # Generate GitHub Step Summary
+          {
+            echo "## 🧪 E2E Pattern Test Results"
+            echo ""
+            echo "| Pattern | Status |"
+            echo "|---------|--------|"
+            echo "| 1 - AQE | ${{ needs.pattern-1-aqe.result == 'success' && '✅ Passed' || '❌ Failed' }} |"
+            echo "| 2 - CBA | ${{ needs.pattern-2-cba.result == 'success' && '✅ Passed' || '❌ Failed' }} |"
+            echo "| 3 - Dependabot | ${{ needs.pattern-3-dependabot.result == 'success' && '✅ Passed' || '❌ Failed' }} |"
+            echo "| 4 - GHA | ${{ needs.pattern-4-gha.result == 'success' && '✅ Passed' || '❌ Failed' }} |"
+            echo "| 5 - Issue-to-PR | ${{ needs.pattern-5-issue-to-pr.result == 'success' && '✅ Passed' || '❌ Failed' }} |"
+            echo "| 6 - Multi-Agent | ${{ needs.pattern-6-multi-agent.result == 'success' && '✅ Passed' || '❌ Failed' }} |"
+            echo "| 7 - PR Review | ${{ needs.pattern-7-pr-review.result == 'success' && '✅ Passed' || '❌ Failed' }} |"
+            echo "| 8 - Security | ${{ needs.pattern-8-security.result == 'success' && '✅ Passed' || '❌ Failed' }} |"
+            echo "| 9 - Self-Review | ${{ needs.pattern-9-self-review.result == 'success' && '✅ Passed' || '❌ Failed' }} |"
+            echo "| 10 - Stale | ${{ needs.pattern-10-stale.result == 'success' && '✅ Passed' || '❌ Failed' }} |"
+            echo "| 11 - Testing | ${{ needs.pattern-11-testing.result == 'success' && '✅ Passed' || '❌ Failed' }} |"
+            echo ""
+          } >> "$GITHUB_STEP_SUMMARY"
+
+          # Also print to console
           echo "=========================================="
           echo "  E2E Pattern Test Results"
           echo "=========================================="
@@ -178,8 +212,8 @@ jobs:
              [[ "${{ needs.pattern-9-self-review.result }}" == "failure" ]] || \
              [[ "${{ needs.pattern-10-stale.result }}" == "failure" ]] || \
              [[ "${{ needs.pattern-11-testing.result }}" == "failure" ]]; then
-            echo "❌ SOME PATTERN TESTS FAILED"
+            echo "❌ SOME PATTERN TESTS FAILED" | tee -a "$GITHUB_STEP_SUMMARY"
             exit 1
           else
-            echo "✅ ALL PATTERN TESTS PASSED"
+            echo "✅ ALL PATTERN TESTS PASSED" | tee -a "$GITHUB_STEP_SUMMARY"
           fi
diff --git a/.github/workflows/issue-to-pr.yml b/.github/workflows/issue-to-pr.yml
index 443db21..d462be9 100644
--- a/.github/workflows/issue-to-pr.yml
+++ b/.github/workflows/issue-to-pr.yml
@@ -9,9 +9,14 @@ permissions:
   pull-requests: write
   issues: write
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.issue.number }}
+  cancel-in-progress: false  # Don't cancel PR creation mid-process
+
 jobs:
   analyze-and-create-pr:
     runs-on: ubuntu-latest
+    timeout-minutes: 10
     if: github.event.label.name == 'ready-for-pr'
 
     steps:
@@ -22,12 +27,13 @@ jobs:
         env:
           ISSUE_BODY: ${{ github.event.issue.body }}
         run: |
+          set -euo pipefail
           # Check for acceptance criteria indicators
           if echo "$ISSUE_BODY" | grep -qiE "(acceptance criteria|requirements|should|must|expected)"; then
-            echo "clear=true" >> $GITHUB_OUTPUT
+            echo "clear=true" >> "$GITHUB_OUTPUT"
             echo "Issue has clear requirements"
           else
-            echo "clear=false" >> $GITHUB_OUTPUT
+            echo "clear=false" >> "$GITHUB_OUTPUT"
             echo "Issue may need clarification"
           fi
 
@@ -37,6 +43,7 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           ISSUE_NUMBER: ${{ github.event.issue.number }}
         run: |
+          set -euo pipefail
           gh issue comment "$ISSUE_NUMBER" --body "This issue was labeled ready-for-pr but may need more detail.
 
           Please provide:
@@ -52,9 +59,10 @@ jobs:
           ISSUE_TITLE: ${{ github.event.issue.title }}
           ISSUE_NUMBER: ${{ github.event.issue.number }}
         run: |
+          set -euo pipefail
           BRANCH_NAME="issue-${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" >> $GITHUB_ENV
+          echo "BRANCH_NAME=$BRANCH_NAME" >> "$GITHUB_ENV"
 
       - name: Create draft PR
         if: steps.analyze.outputs.clear == 'true'
@@ -63,6 +71,7 @@ jobs:
           ISSUE_TITLE: ${{ github.event.issue.title }}
           ISSUE_NUMBER: ${{ github.event.issue.number }}
         run: |
+          set -euo pipefail
           # Create a placeholder commit
           cat > IMPLEMENTATION.md << EOF
           # Implementation for Issue #${ISSUE_NUMBER}
@@ -94,3 +103,37 @@ jobs:
 
           ---
           Created automatically from issue #${ISSUE_NUMBER}"
+
+      - name: Generate summary
+        if: always()
+        env:
+          ISSUE_NUMBER: ${{ github.event.issue.number }}
+          ISSUE_TITLE: ${{ github.event.issue.title }}
+          BRANCH_NAME: ${{ env.BRANCH_NAME }}
+          ANALYZE_CLEAR: ${{ steps.analyze.outputs.clear }}
+        run: |
+          set -euo pipefail
+          {
+            echo "## 🎫 Issue to PR Automation"
+            echo ""
+            echo "**Issue**: #$ISSUE_NUMBER - $ISSUE_TITLE"
+            echo ""
+            if [ "$ANALYZE_CLEAR" == "true" ]; then
+              echo "**Action**: ✅ Draft PR created"
+              echo ""
+              echo "A draft PR has been created with branch: \`$BRANCH_NAME\`"
+              echo ""
+              echo "Next steps:"
+              echo "- Implement the changes"
+              echo "- Mark PR as ready for review"
+            else
+              echo "**Action**: 💬 Clarification requested"
+              echo ""
+              echo "The issue needs more detail before a PR can be created."
+              echo ""
+              echo "A comment has been added requesting:"
+              echo "- Clear acceptance criteria"
+              echo "- Expected behavior"
+              echo "- Specific implementation requirements"
+            fi
+          } >> "$GITHUB_STEP_SUMMARY"
diff --git a/.github/workflows/pr-review.yml b/.github/workflows/pr-review.yml
index 0bc49c9..a4d141d 100644
--- a/.github/workflows/pr-review.yml
+++ b/.github/workflows/pr-review.yml
@@ -1,16 +1,24 @@
 name: PR Auto-Review
 
+# IMPORTANT: Uses pull_request_target to support fork PRs
+# This allows posting comments on PRs from forks while maintaining security
+# by only checking out code for diff analysis (not executing PR code)
 on:
-  pull_request:
+  pull_request_target:
     types: [opened, synchronize, ready_for_review]
 
 permissions:
   contents: read
   pull-requests: write
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number }}
+  cancel-in-progress: true  # Re-review on each push, cancel old reviews
+
 jobs:
   auto-review:
     runs-on: ubuntu-latest
+    timeout-minutes: 15
     # Skip draft PRs and PRs with skip-review label
     if: |
       github.event.pull_request.draft == false &&
@@ -19,95 +27,136 @@ jobs:
     steps:
       - uses: actions/checkout@v4
         with:
+          # SECURITY: Check out base branch, not PR code
+          # We only analyze diffs via GitHub API, never execute PR code
+          ref: ${{ github.event.pull_request.base.sha }}
           fetch-depth: 0
 
+      - name: Fetch PR branch for diff analysis
+        run: |
+          # Fetch PR branch without checking it out (security)
+          git fetch origin pull/${{ github.event.pull_request.number }}/head:pr-branch
+
       - name: Get changed files
         id: changed
-        run: |
-          CHANGED_FILES=$(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 }}
+          PR_NUMBER: ${{ github.event.pull_request.number }}
+        run: |
+          CHANGED_FILES=$(gh pr view "$PR_NUMBER" --json files -q '.files[].path' | tr '\n' ' ')
+          echo "files=$CHANGED_FILES" >> "$GITHUB_OUTPUT"
 
       - name: Security review
         id: security
+        env:
+          CHANGED_FILES: ${{ steps.changed.outputs.files }}
         run: |
+          set -euo pipefail
           FINDINGS=""
 
           # Check for hardcoded secrets patterns
-          if git diff origin/main...HEAD | grep -iE "(password|secret|api_key|token)\s*=\s*['\"][^'\"]+['\"]"; then
+          # Use pr-branch ref instead of HEAD for security (never checkout PR code)
+          if SECRETS_FOUND=$(git diff origin/${{ github.event.pull_request.base.ref }}...pr-branch | grep -iE "(password|secret|api_key|token)\s*=\s*['\"][^'\"]+['\"]" || true) && [ -n "$SECRETS_FOUND" ]; then
             FINDINGS="${FINDINGS}🔴 **CRITICAL**: Potential hardcoded secrets detected\n"
           fi
 
           # Check for .env file additions
-          if echo "${{ steps.changed.outputs.files }}" | grep -qE "\.env$"; then
+          if echo "$CHANGED_FILES" | grep -qE "\.env$" || false; 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
+          if TODO_FOUND=$(git diff origin/${{ github.event.pull_request.base.ref }}...pr-branch | grep -iE "(security|auth|password)" | grep -iE "(todo|fixme|hack)" || true) && [ -n "$TODO_FOUND" ]; then
             FINDINGS="${FINDINGS}🟡 **WARNING**: TODO/FIXME in security-sensitive code\n"
           fi
 
           if [ -n "$FINDINGS" ]; then
-            echo "has_findings=true" >> $GITHUB_OUTPUT
-            echo -e "findings=$FINDINGS" >> $GITHUB_OUTPUT
+            echo "has_findings=true" >> "$GITHUB_OUTPUT"
+            echo -e "findings=$FINDINGS" >> "$GITHUB_OUTPUT"
           else
-            echo "has_findings=false" >> $GITHUB_OUTPUT
+            echo "has_findings=false" >> "$GITHUB_OUTPUT"
           fi
 
       - name: Code quality review
         id: quality
+        env:
+          CHANGED_FILES: ${{ steps.changed.outputs.files }}
         run: |
+          set -euo pipefail
           FINDINGS=""
 
           # Check for large files
-          LARGE_FILES=$(git diff --stat origin/main...HEAD | grep -E "\+[0-9]{3,}" | head -5)
+          LARGE_FILES=$(git diff --stat origin/${{ github.event.pull_request.base.ref }}...pr-branch | grep -E "\+[0-9]{3,}" | head -5 || true)
           if [ -n "$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 "${{ steps.changed.outputs.files }}" | grep -E "test" || true)
+          CODE_CHANGED=$(echo "$CHANGED_FILES" | grep -E "\.(py|js|ts)$" | grep -v test || true)
+          TEST_CHANGED=$(echo "$CHANGED_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" >> $GITHUB_OUTPUT
+            echo "has_findings=true" >> "$GITHUB_OUTPUT"
+            echo -e "findings=$FINDINGS" >> "$GITHUB_OUTPUT"
           else
-            echo "has_findings=false" >> $GITHUB_OUTPUT
+            echo "has_findings=false" >> "$GITHUB_OUTPUT"
           fi
 
       - name: Post review comment
         if: steps.security.outputs.has_findings == 'true' || steps.quality.outputs.has_findings == 'true'
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          PR_NUMBER: ${{ github.event.pull_request.number }}
+          SECURITY_FINDINGS: ${{ steps.security.outputs.findings }}
+          QUALITY_FINDINGS: ${{ steps.quality.outputs.findings }}
+          HAS_SECURITY: ${{ steps.security.outputs.has_findings }}
+          HAS_QUALITY: ${{ steps.quality.outputs.has_findings }}
         run: |
-          COMMENT="## 🤖 Automated PR Review\n\n"
+          set -euo pipefail
+
+          # Build comment body
+          COMMENT="## 🤖 Automated PR Review
 
-          if [ "${{ steps.security.outputs.has_findings }}" == "true" ]; then
-            COMMENT="${COMMENT}### Security Findings\n${{ steps.security.outputs.findings }}\n"
+"
+
+          if [ "$HAS_SECURITY" == "true" ]; then
+            COMMENT="${COMMENT}### Security Findings
+${SECURITY_FINDINGS}
+
+"
           fi
 
-          if [ "${{ steps.quality.outputs.has_findings }}" == "true" ]; then
-            COMMENT="${COMMENT}### Code Quality\n${{ steps.quality.outputs.findings }}\n"
+          if [ "$HAS_QUALITY" == "true" ]; then
+            COMMENT="${COMMENT}### Code Quality
+${QUALITY_FINDINGS}
+
+"
           fi
 
-          COMMENT="${COMMENT}\n---\n*This is an automated review. Please address any 🔴 CRITICAL issues before merging.*"
+          COMMENT="${COMMENT}---
+*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: ${{ secrets.GITHUB_TOKEN }}
+          # Post comment with explicit repository
+          echo "$COMMENT" | gh pr comment "$PR_NUMBER" \
+            --repo "${{ github.repository }}" \
+            --body-file -
 
       - name: Post success comment
         if: steps.security.outputs.has_findings == 'false' && steps.quality.outputs.has_findings == 'false'
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          PR_NUMBER: ${{ github.event.pull_request.number }}
         run: |
-          gh pr comment ${{ github.event.pull_request.number }} --body "## 🤖 Automated PR Review
+          gh pr comment "$PR_NUMBER" \
+            --repo "${{ github.repository }}" \
+            --body "## 🤖 Automated PR Review
 
-          ✅ No security or code quality issues detected.
+✅ No security or code quality issues detected.
 
-          ---
-          *This is an automated review.*"
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+---
+*This is an automated review.*"
diff --git a/.github/workflows/security.yml b/.github/workflows/security.yml
index e862778..8fc87fe 100644
--- a/.github/workflows/security.yml
+++ b/.github/workflows/security.yml
@@ -3,34 +3,191 @@ name: Security
 on:
   push:
     branches: [main]
+    paths:
+      - '**/*.py'
+      - '**/*.js'
+      - '**/*.ts'
+      - '**/*.tsx'
+      - '.github/workflows/security.yml'
   pull_request:
     branches: [main]
+    paths:
+      - '**/*.py'
+      - '**/*.js'
+      - '**/*.ts'
+      - '**/*.tsx'
+      - '.github/workflows/security.yml'
   schedule:
     - cron: "0 0 * * 0"  # Weekly on Sunday
 
+permissions:
+  contents: read
+  security-events: write
+  actions: read
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
+  # NOTE: This repository is documentation-only, so CodeQL may not find substantial code to analyze.
+  # This workflow demonstrates the CodeQL pattern for repositories with Python/JavaScript code.
+  # For production use, CodeQL is most valuable in repositories with significant application code.
+  #
+  # CUSTOMIZATION GUIDE FOR YOUR PROJECT:
+  # ======================================
+  # 1. Language Matrix: Update 'language' array to match YOUR codebase
+  #    - Supported: python, javascript, typescript, java, cpp, csharp, go, ruby, swift, kotlin
+  #    - Example: language: ['python', 'typescript', 'go']
+  #
+  # 2. continue-on-error: Set based on your requirements
+  #    - true:  Workflow succeeds even if a language has no code (good for templates/multi-language repos)
+  #    - false: Workflow fails if any language analysis fails (strict enforcement for production apps)
+  #    - RECOMMENDED: Set to 'false' for production applications to catch security issues
+  #
+  # 3. Remove languages you DON'T use to avoid unnecessary analysis time
+  #
+  # See .github/workflows/README.md for detailed customization instructions
+  codeql:
+    name: CodeQL Analysis
+    runs-on: ubuntu-latest
+    timeout-minutes: 45
+    continue-on-error: true  # TEMPLATE: Set to 'false' for production apps with actual code
+    strategy:
+      fail-fast: false
+      matrix:
+        language: ['python', 'javascript']  # TEMPLATE: Customize for your languages
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@v3
+        with:
+          languages: ${{ matrix.language }}
+          queries: security-extended
+
+      - name: Autobuild
+        uses: github/codeql-action/autobuild@v3
+
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@v3
+        with:
+          category: "/language:${{ matrix.language }}"
+
   security-scan:
+    name: Security Checks
     runs-on: ubuntu-latest
+    timeout-minutes: 15
 
     steps:
       - uses: actions/checkout@v4
 
       - name: Check for secrets in documentation
         run: |
+          set -euo pipefail
           # Check for common secret patterns in docs
-          if grep -r -E '(api_key|secret|password|token).*=.*["\047][A-Za-z0-9+/]{20,}' docs/ README.md || true; then
-            echo "Warning: Potential secrets found in documentation"
+          # Exit code 1 from grep means "no match found" - that's good!
+          FINDINGS=false
+
+          for location in docs/ README.md; do
+            if [ ! -e "$location" ]; then
+              echo "⏭️  $location not found, skipping"
+              continue
+            fi
+
+            echo "🔍 Scanning ${location} for secret patterns..."
+            if grep -r -E '(api_key|secret|password|token).*=.*["\047][A-Za-z0-9+/]{20,}' "$location" 2>/dev/null; then
+              FINDINGS=true
+            fi
+          done
+
+          if [ "$FINDINGS" = "true" ]; then
+            # SECURITY POLICY: Fail workflow on secret detection
+            # NOTE: For documentation repos with intentional examples, patterns may match code snippets.
+            # If you need warning-only mode, remove the 'exit 1' below and keep only the echo statements.
+            echo "❌ ERROR: Potential secrets detected in documentation!"
+            echo "Review the matches above to ensure they are not real credentials."
+            echo ""
+            echo "If these are intentional code examples, consider:"
+            echo "  - Using placeholder values (e.g., 'your-api-key-here')"
+            echo "  - Shortening example secrets to <20 characters"
+            echo "  - Adding comments clarifying they are examples"
+            exit 1  # FAIL the workflow
+          else
+            echo "✅ No secret patterns detected in documentation"
           fi
 
       - name: Check for hardcoded URLs with credentials
         run: |
-          if grep -r -E 'https?://[^:]+:[^@]+@' docs/ README.md || true; then
-            echo "Warning: URLs with credentials found in documentation"
+          set -euo pipefail
+          # Check for URLs with embedded credentials (e.g., https://user:pass@example.com)
+          # Exit code 1 from grep means "no match found" - that's good!
+          FINDINGS=false
+
+          for location in docs/ README.md; do
+            if [ ! -e "$location" ]; then
+              echo "⏭️  $location not found, skipping"
+              continue
+            fi
+
+            echo "🔍 Scanning ${location} for URLs with credentials..."
+            if grep -r -E 'https?://[^:]+:[^@]+@' "$location" 2>/dev/null; then
+              FINDINGS=true
+            fi
+          done
+
+          if [ "$FINDINGS" = "true" ]; then
+            # SECURITY POLICY: Fail workflow on credential-in-URL detection
+            # NOTE: For documentation repos with intentional examples, patterns may match code snippets.
+            # If you need warning-only mode, remove the 'exit 1' below and keep only the echo statements.
+            echo "❌ ERROR: URLs with embedded credentials detected!"
+            echo "Credentials should never be in URLs. Use secure credential management instead."
+            echo ""
+            echo "If these are intentional examples in documentation:"
+            echo "  - Use placeholder credentials (e.g., https://user:pass@example.com → https://USER:PASS@example.com)"
+            echo "  - Add clear comments that these are NOT real credentials"
+            exit 1  # FAIL the workflow
+          else
+            echo "✅ No URLs with embedded credentials detected"
           fi
 
       - name: Verify no .env files committed
         run: |
+          set -euo pipefail
           if find . -name ".env*" -not -path "./.git/*" -not -name ".env.example" | grep -q .; then
             echo "Error: .env files should not be committed"
             exit 1
           fi
+          echo "✅ No .env files detected"
+
+  security-summary:
+    name: Security Summary
+    runs-on: ubuntu-latest
+    timeout-minutes: 5
+    needs: [codeql, security-scan]
+    if: always()
+
+    steps:
+      - name: Generate summary
+        run: |
+          set -euo pipefail
+          {
+            echo "## 🔒 Security Scan Results"
+            echo ""
+            echo "| Check | Status |"
+            echo "|-------|--------|"
+            echo "| CodeQL Analysis (Python + JavaScript) | ${{ needs.codeql.result == 'success' && '✅ Passed' || needs.codeql.result == 'skipped' && '⏭️ Skipped' || '❌ Failed' }} |"
+            echo "| Secrets in Documentation | ${{ needs.security-scan.result == 'success' && '✅ Passed' || '❌ Failed' }} |"
+            echo "| Hardcoded URL Credentials | ${{ needs.security-scan.result == 'success' && '✅ Passed' || '❌ Failed' }} |"
+            echo "| .env Files | ${{ needs.security-scan.result == 'success' && '✅ Passed' || '❌ Failed' }} |"
+            echo ""
+            if [ "${{ needs.codeql.result }}" == "failure" ] || [ "${{ needs.security-scan.result }}" == "failure" ]; then
+              echo "**Status**: ❌ Security checks failed"
+              echo ""
+              echo "*Review detailed findings in the [Security tab](https://github.com/${{ github.repository }}/security/code-scanning)*"
+            else
+              echo "**Status**: ✅ All security checks passed"
+            fi
+          } >> "$GITHUB_STEP_SUMMARY"
diff --git a/.github/workflows/stale.yml b/.github/workflows/stale.yml
index 05f42e4..5ee5c06 100644
--- a/.github/workflows/stale.yml
+++ b/.github/workflows/stale.yml
@@ -10,9 +10,14 @@ permissions:
   issues: write
   pull-requests: write
 
+concurrency:
+  group: ${{ github.workflow }}
+  cancel-in-progress: false  # Scheduled jobs should complete, not race with each other
+
 jobs:
   stale:
     runs-on: ubuntu-latest
+    timeout-minutes: 15
 
     steps:
       - uses: actions/stale@v9
@@ -61,3 +66,30 @@ jobs:
 
           # Rate limiting
           operations-per-run: 100
+
+      - name: Generate summary
+        if: always()
+        run: |
+          {
+            echo "## 🧹 Stale Issue Management"
+            echo ""
+            echo "Automated maintenance run completed."
+            echo ""
+            echo "### Configuration"
+            echo "| Type | Days Until Stale | Days Until Close |"
+            echo "|------|------------------|------------------|"
+            echo "| Issues | 30 | 7 |"
+            echo "| Pull Requests | 14 | 7 |"
+            echo ""
+            echo "### Exemptions"
+            echo "- **Issue labels**: \`pinned\`, \`security\`, \`bug\`, \`help-wanted\`"
+            echo "- **PR labels**: \`pinned\`, \`security\`"
+            echo "- **Assignees**: All assigned items are exempt"
+            echo ""
+            echo "### Operations"
+            echo "- Marked inactive items as stale"
+            echo "- Closed items stale for 7+ days"
+            echo "- Removed stale label from updated items"
+            echo ""
+            echo "*Check the workflow logs for specific items processed*"
+          } >> "$GITHUB_STEP_SUMMARY"
diff --git a/.github/workflows/validate.yml b/.github/workflows/validate.yml
index f47629a..ba14fe8 100644
--- a/.github/workflows/validate.yml
+++ b/.github/workflows/validate.yml
@@ -7,10 +7,15 @@ on:
     branches: [main]
   workflow_dispatch:
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true  # Cancel outdated validation runs on new pushes
+
 jobs:
   aqe-validation:
     name: AQE Quality Checks
     runs-on: ubuntu-latest
+    timeout-minutes: 20
 
     steps:
       - uses: actions/checkout@v4
@@ -19,14 +24,13 @@ jobs:
         uses: actions/setup-node@v4
         with:
           node-version: '20'
+          # No cache - installing global npm package, no lockfile present
 
       - name: Install markdownlint
         run: npm install -g markdownlint-cli
 
       - name: Run validation checks
-        run: |
-          chmod +x .github/scripts/check.sh
-          .github/scripts/check.sh
+        run: .github/scripts/check.sh
 
       - name: Markdown linting
         run: markdownlint docs/**/*.md README.md CLAUDE.md CONTRIBUTING.md
@@ -34,6 +38,7 @@ jobs:
   documentation-structure:
     name: Documentation Structure
     runs-on: ubuntu-latest
+    timeout-minutes: 10
 
     steps:
       - uses: actions/checkout@v4
@@ -52,3 +57,29 @@ jobs:
           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"
+
+  validation-summary:
+    runs-on: ubuntu-latest
+    timeout-minutes: 5
+    needs: [aqe-validation, documentation-structure]
+    if: always()
+
+    steps:
+      - name: Generate summary
+        run: |
+          {
+            echo "## ✅ AQE Validation Results"
+            echo ""
+            echo "| Check | Status |"
+            echo "|-------|--------|"
+            echo "| AQE Quality Checks | ${{ needs.aqe-validation.result == 'success' && '✅ Passed' || '❌ Failed' }} |"
+            echo "| Documentation Structure | ${{ needs.documentation-structure.result == 'success' && '✅ Passed' || '❌ Failed' }} |"
+            echo ""
+            if [ "${{ needs.aqe-validation.result }}" == "failure" ] || [ "${{ needs.documentation-structure.result }}" == "failure" ]; then
+              echo "**Status**: ❌ Validation failed"
+              echo ""
+              echo "*Review the logs above for detailed error messages*"
+            else
+              echo "**Status**: ✅ All validation checks passed"
+            fi
+          } >> "$GITHUB_STEP_SUMMARY"
diff --git a/.repomap.txt b/.repomap.txt
index 86cb9e4..dc5270d 100644
--- a/.repomap.txt
+++ b/.repomap.txt
@@ -15,6 +15,12 @@ repomap.py
 scripts/
   record-demo.sh
   setup.sh
+  update-repomap.sh
+    def usage()
+    def check_dependencies()
+    def generate_repomap()
+    def k_repomap_current() {()
+    def  loc()
   validate-mermaid.sh
     def validate_markdown_file()
 scripts/autonomous-review/
@@ -24,3 +30,56 @@ scripts/validation/
 scripts/validation/tests/
   run-all.sh
   test-autonomous-fix-loop.sh
+src/
+  __init__.py
+src/core/
+  __init__.py
+  security.py
+    def sanitize_string()
+    def validate_slug()
+    def sanitize_path()
+    def validate_environment_secret()
+tests/
+  conftest.py
+    def sample_string()
+    def dangerous_string()
+    def path_traversal_string()
+    def valid_slug()
+    def invalid_slugs()
+tests/e2e/
+  __init__.py
+  test_cba_workflow.py
+    class TestCBAWorkflow
+      def test_issue_to_pr_workflow()
+      def test_pr_auto_review_workflow()
+      def test_dependabot_auto_merge_workflow()
+tests/integration/
+  __init__.py
+  test_validation_api.py
+    class TestAPIValidation
+      def test_valid_input_accepted()
+      def test_invalid_slug_rejected()
+      def test_missing_required_field_rejected()
+      def test_xss_attempt_sanitized()
+tests/unit/
+  __init__.py
+  test_security.py
+    class TestSanitizeString
+      def test_removes_control_characters()
+      def test_trims_whitespace()
+      def test_enforces_max_length()
+      def test_handles_none()
+      def test_removes_html_tags()
+    class TestValidateSlug
+      def test_valid_slug_passes()
+      def test_empty_slug_raises()
+      def test_leading_hyphen_raises()
+      def test_trailing_hyphen_raises()
+      def test_consecutive_hyphens_raises()
+      def test_uppercase_raises()
+      def test_special_characters_raises()
+    class TestSanitizePath
+      def test_blocks_path_traversal()
+      def test_allows_valid_path()
+      def test_normalizes_slashes()
+      def test_removes_null_bytes()