diff --git a/plugins/config-audit/scanners/lib/scoring.mjs b/plugins/config-audit/scanners/lib/scoring.mjs
index 338a3cb..4b579ac 100644
--- a/plugins/config-audit/scanners/lib/scoring.mjs
+++ b/plugins/config-audit/scanners/lib/scoring.mjs
@@ -150,12 +150,21 @@ const SCANNER_AREA_MAP = {
   IMP: 'Imports',
   CNF: 'Conflicts',
   GAP: 'Feature Coverage',
+  TOK: 'Token Efficiency',
 };
 
+/**
+ * Slugify an area name into a stable id.
+ * Example: "Token Efficiency" → "token_efficiency", "CLAUDE.md" → "claude_md".
+ */
+function slugify(name) {
+  return String(name).toLowerCase().replace(/[^a-z0-9]+/g, '_').replace(/^_+|_+$/g, '');
+}
+
 /**
  * Score per config area from scanner results.
  * @param {object[]} scannerResults - Array of scanner result objects from envelope.scanners
- * @returns {{ areas: Array<{ name: string, grade: string, score: number, findingCount: number }>, overallGrade: string }}
+ * @returns {{ areas: Array<{ id: string, name: string, grade: string, score: number, findingCount: number }>, overallGrade: string }}
  */
 export function scoreByArea(scannerResults) {
   const areas = [];
@@ -178,7 +187,7 @@ export function scoreByArea(scannerResults) {
     }
 
     const grade = gradeFromPassRate(score);
-    areas.push({ name, grade, score, findingCount });
+    areas.push({ id: slugify(name), name, grade, score, findingCount });
   }
 
   // Overall grade: quality areas only (exclude GAP — feature coverage is informational, not a quality issue)
@@ -262,7 +271,7 @@ export function generateScorecard(areaScores, utilization, maturity, segment, ac
 
 /**
  * Generate a v3 health-focused terminal scorecard.
- * Shows only the 7 quality areas — no utilization, maturity, or segment.
+ * Shows only the quality areas (currently 8) — no utilization, maturity, or segment.
  * @param {{ areas: Array<{ name: string, grade: string, score: number }>, overallGrade: string }} areaScores
  * @param {number} opportunityCount - Number of GAP findings (shown as opportunity count)
  * @returns {string}
diff --git a/plugins/config-audit/tests/lib/scoring.test.mjs b/plugins/config-audit/tests/lib/scoring.test.mjs
index 8eb590d..df2127b 100644
--- a/plugins/config-audit/tests/lib/scoring.test.mjs
+++ b/plugins/config-audit/tests/lib/scoring.test.mjs
@@ -265,11 +265,11 @@ describe('determineSegment', () => {
 // scoreByArea
 // ========================================
 describe('scoreByArea', () => {
-  it('returns areas for all 8 scanners', () => {
-    const scanners = ['CML', 'SET', 'HKV', 'RUL', 'MCP', 'IMP', 'CNF', 'GAP']
+  it('returns areas for all 9 scanners', () => {
+    const scanners = ['CML', 'SET', 'HKV', 'RUL', 'MCP', 'IMP', 'CNF', 'GAP', 'TOK']
       .map(s => makeScannerResult(s, 0));
     const result = scoreByArea(scanners);
-    assert.equal(result.areas.length, 8);
+    assert.equal(result.areas.length, 9);
   });
 
   it('zero findings → A grade', () => {
diff --git a/plugins/config-audit/tests/scanners/posture.test.mjs b/plugins/config-audit/tests/scanners/posture.test.mjs
index e3f3756..c809fc7 100644
--- a/plugins/config-audit/tests/scanners/posture.test.mjs
+++ b/plugins/config-audit/tests/scanners/posture.test.mjs
@@ -45,9 +45,10 @@ describe('posture.mjs CLI — healthy project', () => {
     assert.ok(result.segment.segment.length > 0);
   });
 
-  it('returns 8 area scores', () => {
-    assert.equal(result.areas.length, 8);
+  it('returns 9 area scores', () => {
+    assert.equal(result.areas.length, 9);
     for (const area of result.areas) {
+      assert.ok('id' in area);
       assert.ok('name' in area);
       assert.ok('grade' in area);
       assert.ok('score' in area);
@@ -55,6 +56,11 @@ describe('posture.mjs CLI — healthy project', () => {
     }
   });
 
+  it('exposes a token_efficiency area id', () => {
+    const te = result.areas.find(a => a.id === 'token_efficiency');
+    assert.ok(te, 'token_efficiency id present');
+  });
+
   it('returns overallGrade', () => {
     assert.ok(['A', 'B', 'C', 'D', 'F'].includes(result.overallGrade));
   });