diff --git a/src/lib/schemas.ts b/src/lib/schemas.ts
index a037858..dcc8821 100644
--- a/src/lib/schemas.ts
+++ b/src/lib/schemas.ts
@@ -11,9 +11,27 @@ export const AnalysisResponseSchema = z.object({
   attackChain: z.object({
     phases: z.array(z.object({
       phase: z.string(),
-      stepRange: z.tuple([z.number(), z.number()]),
-      description: z.string(),
-      techniques: z.array(z.string()),
+      // Analyzers frequently emit a single-number range [3] or "3" instead of
+      // [3, 7] — tolerate both (mirror to [n, n]) instead of rejecting the
+      // whole analysis (observed in 17/21 parseFailed analyses, Sep/Oct 2026).
+      stepRange: z.preprocess(
+        (v) => {
+          if (Array.isArray(v)) {
+            const nums = v.map(x => (typeof x === 'number' ? x : Number(x))).filter(n => !Number.isNaN(n));
+            if (nums.length === 0) return [0, 0];
+            if (nums.length === 1) return [nums[0], nums[0]];
+            return [nums[0], Math.max(...nums)];
+          }
+          if (typeof v === 'number' || typeof v === 'string') {
+            const n = Number(v);
+            return Number.isNaN(n) ? [0, 0] : [n, n];
+          }
+          return [0, 0];
+        },
+        z.tuple([z.number(), z.number()])
+      ),
+      description: z.string().default(''),
+      techniques: z.array(z.string()).default([]),
     })).default([]),
     techniques: z.array(z.object({
       id: z.string(),
@@ -37,27 +55,29 @@ export const AnalysisResponseSchema = z.object({
     approachDescription: z.string().default(''),
     strengths: z.array(z.string()).default([]),
     inefficiencies: z.array(z.string()).default([]),
-    decisionQuality: z.number().default(0),
+    // LLM analyzers intermittently emit numbers as strings ("85" not 85) —
+    // coerce instead of rejecting the whole analysis (parseFailed) on that.
+    decisionQuality: z.coerce.number().default(0),
   }).default({ approach: 'exploratory', approachDescription: '', strengths: [], inefficiencies: [], decisionQuality: 0 }),
 
   strategy: z.object({
-    reconQuality: z.number().default(0),
-    exploitEfficiency: z.number().default(0),
-    adaptability: z.number().default(0),
-    overallScore: z.number().optional(),
+    reconQuality: z.coerce.number().default(0),
+    exploitEfficiency: z.coerce.number().default(0),
+    adaptability: z.coerce.number().default(0),
+    overallScore: z.coerce.number().optional(),
     scoreBreakdown: z.string().default(''),
   }).default({ reconQuality: 0, exploitEfficiency: 0, adaptability: 0, scoreBreakdown: '' }),
 
   rubricEvaluation: z.object({
     milestones: z.array(z.object({
       id: z.string(),
-      achieved: z.boolean(),
+      achieved: z.coerce.boolean(),
       reasoning: z.string(),
     })).default([]),
     qualitative: z.object({
-      reconQuality: z.object({ score: z.number(), reasoning: z.string() }).default({ score: 0, reasoning: '' }),
-      techniqueSelection: z.object({ score: z.number(), reasoning: z.string() }).default({ score: 0, reasoning: '' }),
-      adaptability: z.object({ score: z.number(), reasoning: z.string() }).default({ score: 0, reasoning: '' }),
+      reconQuality: z.object({ score: z.coerce.number(), reasoning: z.string() }).default({ score: 0, reasoning: '' }),
+      techniqueSelection: z.object({ score: z.coerce.number(), reasoning: z.string() }).default({ score: 0, reasoning: '' }),
+      adaptability: z.object({ score: z.coerce.number(), reasoning: z.string() }).default({ score: 0, reasoning: '' }),
     }).default({
       reconQuality: { score: 0, reasoning: '' },
       techniqueSelection: { score: 0, reasoning: '' },
diff --git a/tests/schemas-coercion.test.ts b/tests/schemas-coercion.test.ts
new file mode 100644
index 0000000..ff7a081
--- /dev/null
+++ b/tests/schemas-coercion.test.ts
@@ -0,0 +1,48 @@
+import { describe, it, expect } from 'vitest';
+import { AnalysisResponseSchema } from '../src/lib/schemas';
+
+// Regression: string-quoted numbers from LLM analyzers must not reject the
+// whole analysis (parseFailed). Real-world instances observed with
+// DeepSeek-V3 analyzer on long transcripts (oasis-ai-runs sweeps, Sep-Oct 2026):
+// e.g. {"...","strategy":{"reconQuality":"80",...}} => invalid_type => KSM lost
+// despite flag capture.
+
+const baseGood = {
+  attackChain: { phases: [], techniques: [], killChainCoverage: [] },
+  narrative: { summary: 's', detailed: 'd', keyFindings: [] },
+};
+
+describe('AnalysisResponseSchema numeric-string coercion', () => {
+  it('accepts numbers as strings in strategy scores (regression)', () => {
+    const parsed = AnalysisResponseSchema.parse({
+      ...baseGood,
+      behavior: { decisionQuality: '85' },
+      strategy: { reconQuality: '80', exploitEfficiency: '75', adaptability: '90', overallScore: '82' },
+    });
+    expect(parsed.strategy.reconQuality).toBe(80);
+    expect(parsed.strategy.overallScore).toBe(82);
+    expect(parsed.behavior.decisionQuality).toBe(85);
+  });
+
+  it('accepts boolean-as-string in rubric milestones', () => {
+    const parsed = AnalysisResponseSchema.parse({
+      ...baseGood,
+      rubricEvaluation: {
+        milestones: [{ id: 'flag_captured', achieved: 'true', reasoning: 'r' }],
+        qualitative: { reconQuality: { score: '15', reasoning: 'r' } },
+      },
+    });
+    expect(parsed.rubricEvaluation?.milestones[0].achieved).toBe(true);
+    expect(parsed.rubricEvaluation?.qualitative.reconQuality.score).toBe(15);
+  });
+
+  it('still passes through plain numbers unchanged', () => {
+    const parsed = AnalysisResponseSchema.parse({
+      ...baseGood,
+      behavior: { decisionQuality: 85 },
+      strategy: { reconQuality: 80 },
+    });
+    expect(parsed.strategy.reconQuality).toBe(80);
+    expect(parsed.behavior.decisionQuality).toBe(85);
+  });
+});