diff --git a/README.md b/README.md
index bae1ff29..5369dea6 100644
--- a/README.md
+++ b/README.md
@@ -145,6 +145,22 @@ See [Disaster Recovery Runbooks](./docs/runbooks/README.md) for detailed procedu
 - **Q3**: Expand security review, run load and failure-mode validation, and prepare launch readiness.
 - **Q4**: Complete mainnet launch checklist, monitor production stability, and gather retrospective improvements.
 
+```bash
+# Validate branch naming, PR description format, and contribution standards
+npm run validate:contribution-standards
+
+# Validate the testing strategy document for unit, integration, and E2E coverage guidance
+npm run validate:testing-strategy
+
+# Validate sprint label formats and issue triage taxonomy
+npm run validate:sprint-and-triage
+
+# Validate release notes template and cliff config
+npm run validate:release-notes
+
+# Validate NFR baselines (SLO, RTO, RPO)
+npm run validate:nfr-baselines
+```
 ## 🤝 Contributing
 
 Fork the repository and clone it to your local machine
diff --git a/docs/TESTING_STRATEGY.md b/docs/TESTING_STRATEGY.md
index 1352f7ae..aa673115 100644
--- a/docs/TESTING_STRATEGY.md
+++ b/docs/TESTING_STRATEGY.md
@@ -100,6 +100,10 @@ Use E2E tests only for user journeys that must prove the app works in a real bro
 - Browser-only flows have at least one Playwright test.
 - New feature work adds coverage in the layer that owns the behavior, not just in the widest suite.
 
+## Repository Enforcement
+
+This strategy is enforced with the repository validator at `npm run validate:testing-strategy`. The command checks that the strategy document still covers the required testing layers, layer-specific guidance, recommended commands, and Playwright-based E2E coverage expectations.
+
 ## Core Playwright User Flows
 
 Canonical browser journeys live under `frontend/e2e/` and run with `cd frontend && npm run test:e2e` (CI: `.github/workflows/e2e.yml`).
diff --git a/package.json b/package.json
index 995a9459..d8333464 100644
--- a/package.json
+++ b/package.json
@@ -10,6 +10,7 @@
     "validate:frontend-env": "tsx scripts/validate-frontend-env.ts",
     "test:validate-frontend-env": "vitest run --config scripts/vitest.config.ts",
     "validate:contribution-standards": "tsx scripts/validate-contribution-standards.ts",
+    "validate:testing-strategy": "tsx scripts/validate-testing-strategy.ts",
     "validate:sprint-and-triage": "tsx scripts/validate-sprint-and-triage-conventions.ts",
     "validate:release-notes": "tsx scripts/validate-release-notes.ts",
     "validate:nfr-baselines": "tsx scripts/validate-nfr-baselines.ts"
diff --git a/scripts/validate-testing-strategy.test.ts b/scripts/validate-testing-strategy.test.ts
new file mode 100644
index 00000000..42d62566
--- /dev/null
+++ b/scripts/validate-testing-strategy.test.ts
@@ -0,0 +1,84 @@
+import { describe, expect, it } from 'vitest';
+import { existsSync, readFileSync } from 'node:fs';
+import { resolve } from 'node:path';
+import { runFullTestingStrategyValidation, validateTestingStrategyDoc } from './validate-testing-strategy';
+
+describe('testing strategy validator', () => {
+  it('accepts a testing strategy document with required sections', () => {
+    const markdown = `
+# YieldVault-RWA Testing Strategy
+
+## Principles
+- Keep tests close to the code they validate.
+
+## Test Layers
+| Layer | Purpose | Owned by | Typical locations | Primary commands |
+| --- | --- | --- | --- | --- |
+| Unit | Local logic | Owner | src/**/*.test.ts | npm test |
+
+## Ownership Rules
+- Frontend tests are owned by the UI team.
+
+## Fixture Strategy
+- Keep fixtures local to the suite.
+
+## Coverage Expectations By Feature Type
+| Feature type | Required coverage |
+| --- | --- |
+| Utility | Unit tests |
+
+## What Belongs In Each Layer
+### Unit
+Use unit tests for deterministic logic.
+
+### Integration
+Use integration tests for cross-module behavior.
+
+### E2E
+Use E2E tests for browser journeys.
+
+## Recommended Commands
+- npm run test
+- npm run test:e2e
+
+## Review Checklist
+- The test scope matches the behavior under change.
+
+## Core Playwright User Flows
+| Flow | Spec | What it proves |
+| --- | --- | --- |
+| Dashboard | dashboard-load.spec.ts | App loads correctly |
+`;
+
+    const result = validateTestingStrategyDoc(markdown);
+    expect(result.valid).toBe(true);
+    expect(result.errors).toEqual([]);
+  });
+
+  it('rejects a document that is missing required sections', () => {
+    const result = validateTestingStrategyDoc('# YieldVault-RWA Testing Strategy\n\n## Principles\n');
+
+    expect(result.valid).toBe(false);
+    expect(result.errors.some((error) => error.includes('Test Layers'))).toBe(true);
+    expect(result.errors.some((error) => error.includes('Recommended Commands'))).toBe(true);
+  });
+
+  it('accepts the repository testing strategy document', () => {
+    const docPath = resolve(__dirname, '../docs/TESTING_STRATEGY.md');
+    expect(existsSync(docPath)).toBe(true);
+
+    const markdown = readFileSync(docPath, 'utf8');
+    const result = validateTestingStrategyDoc(markdown);
+
+    expect(result.valid).toBe(true);
+    expect(result.errors).toEqual([]);
+  });
+
+  it('passes the full repository validation for the testing strategy doc', () => {
+    const rootDir = resolve(__dirname, '..');
+    const result = runFullTestingStrategyValidation(rootDir);
+
+    expect(result.valid).toBe(true);
+    expect(result.errors).toEqual([]);
+  });
+});
diff --git a/scripts/validate-testing-strategy.ts b/scripts/validate-testing-strategy.ts
new file mode 100644
index 00000000..08bbbbcc
--- /dev/null
+++ b/scripts/validate-testing-strategy.ts
@@ -0,0 +1,82 @@
+import { existsSync, readFileSync } from 'node:fs';
+import { resolve } from 'node:path';
+
+export interface ValidationResult {
+  valid: boolean;
+  errors: string[];
+  warnings: string[];
+}
+
+const REQUIRED_SECTIONS = [
+  '## Principles',
+  '## Test Layers',
+  '## Ownership Rules',
+  '## Fixture Strategy',
+  '## Coverage Expectations By Feature Type',
+  '## What Belongs In Each Layer',
+  '## Recommended Commands',
+  '## Review Checklist',
+  '## Core Playwright User Flows',
+];
+
+const REQUIRED_LAYER_HEADINGS = ['### Unit', '### Integration', '### E2E'];
+
+export function validateTestingStrategyDoc(markdownContent: string): ValidationResult {
+  const errors: string[] = [];
+  const warnings: string[] = [];
+
+  if (!markdownContent || markdownContent.trim() === '') {
+    errors.push('Testing strategy document cannot be empty.');
+    return { valid: false, errors, warnings };
+  }
+
+  for (const section of REQUIRED_SECTIONS) {
+    if (!markdownContent.includes(section)) {
+      errors.push(`Testing strategy doc is missing required section: "${section}"`);
+    }
+  }
+
+  for (const heading of REQUIRED_LAYER_HEADINGS) {
+    if (!markdownContent.includes(heading)) {
+      errors.push(`Testing strategy doc is missing layer heading: "${heading}"`);
+    }
+  }
+
+  if (!markdownContent.includes('Playwright')) {
+    errors.push('Testing strategy doc must reference Playwright for browser E2E coverage.');
+  }
+
+  if (!markdownContent.includes('npm run test:e2e')) {
+    errors.push('Testing strategy doc must include the E2E command for browser journeys.');
+  }
+
+  return { valid: errors.length === 0, errors, warnings };
+}
+
+export function runFullTestingStrategyValidation(rootDir: string = process.cwd()): ValidationResult {
+  const errors: string[] = [];
+  const warnings: string[] = [];
+
+  const docPath = resolve(rootDir, 'docs/TESTING_STRATEGY.md');
+  if (!existsSync(docPath)) {
+    errors.push('docs/TESTING_STRATEGY.md file does not exist.');
+    return { valid: false, errors, warnings };
+  }
+
+  const result = validateTestingStrategyDoc(readFileSync(docPath, 'utf8'));
+  errors.push(...result.errors);
+  warnings.push(...result.warnings);
+
+  return { valid: errors.length === 0, errors, warnings };
+}
+
+if (require.main === module) {
+  const result = runFullTestingStrategyValidation();
+  if (!result.valid) {
+    console.error('❌ Testing strategy validation failed:');
+    result.errors.forEach((err) => console.error(`  - ${err}`));
+    process.exit(1);
+  } else {
+    console.log('✅ Testing strategy validation passed successfully!');
+  }
+}