diff --git a/src/utils/__tests__/__snapshots__/svgRenderer.test.ts.snap b/src/utils/__tests__/__snapshots__/svgRenderer.test.ts.snap
index a60528cdd..67735b4fb 100644
--- a/src/utils/__tests__/__snapshots__/svgRenderer.test.ts.snap
+++ b/src/utils/__tests__/__snapshots__/svgRenderer.test.ts.snap
@@ -1,7 +1,9 @@
 // Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
 
 exports[`generateOptimizedSvg > should match the optimized contribution graph SVG structure snapshot 1`] = `
-"<svg xmlns="http://www.w3.org/2000/svg" viewBox="-200 -50 800 600" width="100%" height="100%">
+"<svg xmlns="http://www.w3.org/2000/svg" viewBox="-200 -50 800 600" width="100%" height="100%" role="img" aria-labelledby="svg-title svg-desc">
+  <title id="svg-title">GitHub Contribution Graph</title>
+  <desc id="svg-desc">A 3D isometric visualization of GitHub contribution activity.</desc>
   
   <defs>
     <polygon id="iso-top" points="0,0 8,-4 16,0 8,4" />
diff --git a/src/utils/svgRenderer.accessibility.test.ts b/src/utils/svgRenderer.accessibility.test.ts
index 367d1d962..885145705 100644
--- a/src/utils/svgRenderer.accessibility.test.ts
+++ b/src/utils/svgRenderer.accessibility.test.ts
@@ -1,66 +1,30 @@
-import { beforeEach, describe, expect, it, vi } from 'vitest';
-
-describe('src/utils/svgRenderer — Accessibility Standards & Screen Reader ARIA Compliance (Variation 4)', () => {
-  let renderedSvgMarkup: string;
-
-  beforeEach(() => {
-    vi.clearAllMocks();
-    vi.spyOn(console, 'log').mockImplementation(() => {});
-
-    // Mimic the precise structural layout string provided by the svgRenderer utility engine
-    renderedSvgMarkup = `
-      <svg xmlns="http://www.w3.org/2000/svg" id="svg-render-root" role="img" aria-labelledby="svg-label-title svg-label-desc" width="600" height="300">
-        <title id="svg-label-title">Repository Contribution Distribution Matrix</title>
-        <desc id="svg-label-desc">A graphical grid representing the frequency of weekly commit intervals across team members.</desc>
-        
-        <g id="header-container" role="group">
-          <text font-size="16" role="heading" aria-level="1" y="25" x="20">Commit Pulse Render Engine Analytics</text>
-        </g>
-
-        <g class="interactive-grid-nodes">
-          <rect id="focusable-data-point-0" tabindex="0" role="button" aria-label="Monday: 12 additions" width="40" height="150" class="focus:outline-none focus:ring-2" />
-        </g>
-
-        <g class="navigation-trail">
-          <circle id="focusable-data-point-1" tabindex="0" role="button" aria-label="Tuesday: 4 modifications" cx="100" cy="80" r="5" />
-        </g>
-
-        <div id="render-engine-tooltip" role="tooltip" aria-describedby="tooltip-content-details">
-          <span id="tooltip-content-details">Variance threshold status: fully compliant steady state operations.</span>
-        </div>
-      </svg>
-    `;
-  });
-
-  it('inspects markup to verify correct implementation of accessible label references via aria-labelledby', () => {
-    expect(renderedSvgMarkup).toMatch(/role="img"/);
-    expect(renderedSvgMarkup).toMatch(/aria-labelledby="svg-label-title svg-label-desc"/);
-    expect(renderedSvgMarkup).toMatch(/<title id="svg-label-title">Repository/);
-    expect(renderedSvgMarkup).toMatch(/<desc id="svg-label-desc">A graphical/);
-  });
-
-  it('asserts elements that accept keyboard focus have valid structural role attributes and clear focus triggers', () => {
-    expect(renderedSvgMarkup).toMatch(/id="focusable-data-point-0"/);
-    expect(renderedSvgMarkup).toMatch(/tabindex="0"/);
-    expect(renderedSvgMarkup).toMatch(/role="button"/);
-    expect(renderedSvgMarkup).toMatch(/focus:ring-2/);
+import { describe, it, expect } from 'vitest';
+import { generateOptimizedSvg, ContributionNode } from './svgRenderer';
+
+const mockData: ContributionNode[] = [
+  { date: '2026-01-01', count: 0, x: 0, y: 0 },
+  { date: '2026-01-02', count: 5, x: 0, y: 1 },
+  { date: '2026-01-03', count: 12, x: 1, y: 1 },
+];
+
+describe('generateOptimizedSvg — Accessibility', () => {
+  it('includes role="img" on the root svg element', () => {
+    const svg = generateOptimizedSvg(mockData);
+    expect(svg).toContain('role="img"');
   });
 
-  it('verifies that rendering canvas tooltips present themselves with specific screen-reader helper roles', () => {
-    expect(renderedSvgMarkup).toMatch(/role="tooltip"/);
-    expect(renderedSvgMarkup).toMatch(/aria-describedby="tooltip-content-details"/);
+  it('includes a <title> element for screen readers', () => {
+    const svg = generateOptimizedSvg(mockData);
+    expect(svg).toMatch(/<title id="svg-title">/);
   });
 
-  it('ensures consecutive interactive focus items are configured cleanly to allow orderly keyboard tabbing paths', () => {
-    expect(renderedSvgMarkup).toMatch(/id="focusable-data-point-1"/);
-    const matches = renderedSvgMarkup.match(/tabindex="0"/g);
-    expect(matches).not.toBeNull();
-    expect(matches?.length).toBeGreaterThanOrEqual(2);
+  it('includes a <desc> element describing the chart', () => {
+    const svg = generateOptimizedSvg(mockData);
+    expect(svg).toMatch(/<desc id="svg-desc">/);
   });
 
-  it('confirms canvas text vectors expose standard heading structures in a logical hierarchical layout order', () => {
-    expect(renderedSvgMarkup).toMatch(/role="heading"/);
-    expect(renderedSvgMarkup).toMatch(/aria-level="1"/);
-    expect(renderedSvgMarkup).toMatch(/Commit Pulse Render Engine Analytics/);
+  it('includes aria-labelledby referencing title and desc', () => {
+    const svg = generateOptimizedSvg(mockData);
+    expect(svg).toContain('aria-labelledby="svg-title svg-desc"');
   });
 });
diff --git a/src/utils/svgRenderer.ts b/src/utils/svgRenderer.ts
index 2e19d551f..fd818292b 100644
--- a/src/utils/svgRenderer.ts
+++ b/src/utils/svgRenderer.ts
@@ -92,7 +92,9 @@ export function generateOptimizedSvg(contributionData: ContributionNode[]): stri
   // STEP 6: OUTPUT FINISHED ROOT SVG STRING
   // ==========================================
   return `
-<svg xmlns="http://www.w3.org/2000/svg" viewBox="-200 -50 800 600" width="100%" height="100%">
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="-200 -50 800 600" width="100%" height="100%" role="img" aria-labelledby="svg-title svg-desc">
+  <title id="svg-title">GitHub Contribution Graph</title>
+  <desc id="svg-desc">A 3D isometric visualization of GitHub contribution activity.</desc>
   ${svgDefs}
   <g id="monolith-grid">
     ${svgElements}