diff --git a/scripts/lib/skill-evolution/tracker.js b/scripts/lib/skill-evolution/tracker.js
index 0ea0ba1cc..8e6d48b10 100644
--- a/scripts/lib/skill-evolution/tracker.js
+++ b/scripts/lib/skill-evolution/tracker.js
@@ -102,7 +102,10 @@ function readJsonl(filePath) {
     .filter(Boolean)
     .reduce((rows, line) => {
       try {
-        rows.push(JSON.parse(line));
+        const record = JSON.parse(line);
+        if (record && typeof record === 'object' && !Array.isArray(record)) {
+          rows.push(record);
+        }
       } catch {
         // Ignore malformed rows so analytics remain best-effort.
       }
diff --git a/tests/lib/skill-evolution.test.js b/tests/lib/skill-evolution.test.js
index b1b985f28..705c692ab 100644
--- a/tests/lib/skill-evolution.test.js
+++ b/tests/lib/skill-evolution.test.js
@@ -320,13 +320,30 @@ function runTests() {
           duration_ms: 1,
           user_feedback: 'accepted',
           recorded_at: '2026-03-15T11:45:00.000Z',
-        })}\n{bad-json}\n`,
+        })}\n{bad-json}\nnull\n42\nfalse\n"not a record"\n[]\n`,
         'utf8'
       );
 
       const records = tracker.readSkillExecutionRecords({ runsFilePath: malformedRunsFile });
       assert.strictEqual(records.length, 1);
       assert.strictEqual(records[0].skill_id, 'alpha');
+      const report = health.collectSkillHealth({
+        repoRoot, homeDir, runsFilePath: malformedRunsFile, now,
+      });
+      assert.strictEqual(report.skills.find(skill => skill.skill_id === 'alpha').run_count_30d, 1);
+
+      const result = runCli([
+        '--json',
+        '--skills-root', skillsRoot,
+        '--learned-root', learnedRoot,
+        '--imported-root', importedRoot,
+        '--home', homeDir,
+        '--runs-file', malformedRunsFile,
+        '--now', now,
+      ]);
+      assert.strictEqual(result.status, 0, result.stderr);
+      const payload = JSON.parse(result.stdout);
+      assert.strictEqual(payload.skills.find(skill => skill.skill_id === 'alpha').run_count_30d, 1);
     })) passed++; else failed++;
 
     if (test('preserves zero-valued telemetry fields during normalization', () => {