diff --git a/apps/api/src/common/decorators/sanitize.decorator.ts b/apps/api/src/common/decorators/sanitize.decorator.ts
new file mode 100644
index 0000000..4819387
--- /dev/null
+++ b/apps/api/src/common/decorators/sanitize.decorator.ts
@@ -0,0 +1,52 @@
+/**
+ * Sanitize Decorator
+ *
+ * Custom class-validator decorator to sanitize string input and prevent XSS.
+ */
+
+import { Transform } from "class-transformer";
+import { sanitizeString, sanitizeObject } from "../utils/sanitize.util";
+
+/**
+ * Sanitize decorator for DTO properties
+ * Automatically sanitizes string values to prevent XSS attacks
+ *
+ * Usage:
+ * ```typescript
+ * class MyDto {
+ *   @Sanitize()
+ *   @IsString()
+ *   userInput!: string;
+ * }
+ * ```
+ */
+export function Sanitize(): PropertyDecorator {
+  return Transform(({ value }: { value: unknown }) => {
+    if (typeof value === "string") {
+      return sanitizeString(value);
+    }
+    return value;
+  });
+}
+
+/**
+ * SanitizeObject decorator for nested objects
+ * Recursively sanitizes all string values in an object
+ *
+ * Usage:
+ * ```typescript
+ * class MyDto {
+ *   @SanitizeObject()
+ *   @IsObject()
+ *   metadata?: Record<string, unknown>;
+ * }
+ * ```
+ */
+export function SanitizeObject(): PropertyDecorator {
+  return Transform(({ value }: { value: unknown }) => {
+    if (typeof value === "object" && value !== null) {
+      return sanitizeObject(value as Record<string, unknown>);
+    }
+    return value;
+  });
+}
diff --git a/apps/api/src/common/utils/sanitize.util.spec.ts b/apps/api/src/common/utils/sanitize.util.spec.ts
new file mode 100644
index 0000000..c181ce5
--- /dev/null
+++ b/apps/api/src/common/utils/sanitize.util.spec.ts
@@ -0,0 +1,171 @@
+/**
+ * Sanitization Utility Tests
+ *
+ * Tests for HTML sanitization and XSS prevention.
+ */
+
+import { describe, it, expect } from "vitest";
+import { sanitizeString, sanitizeObject, sanitizeArray } from "./sanitize.util";
+
+describe("Sanitization Utilities", () => {
+  describe("sanitizeString", () => {
+    it("should remove script tags", () => {
+      const dirty = '<script>alert("XSS")</script>Hello';
+      const clean = sanitizeString(dirty);
+
+      expect(clean).not.toContain("<script>");
+      expect(clean).not.toContain("alert");
+      expect(clean).toContain("Hello");
+    });
+
+    it("should remove javascript: URLs", () => {
+      const dirty = '<a href="javascript:alert(1)">Click</a>';
+      const clean = sanitizeString(dirty);
+
+      expect(clean).not.toContain("javascript:");
+      expect(clean).toContain("Click");
+    });
+
+    it("should remove on* event handlers", () => {
+      const dirty = '<div onclick="alert(1)">Click me</div>';
+      const clean = sanitizeString(dirty);
+
+      expect(clean).not.toContain("onclick");
+      expect(clean).toContain("Click me");
+    });
+
+    it("should allow safe HTML tags", () => {
+      const input = "<p>Hello <b>world</b>!</p>";
+      const clean = sanitizeString(input);
+
+      expect(clean).toContain("<p>");
+      expect(clean).toContain("<b>");
+      expect(clean).toContain("Hello");
+    });
+
+    it("should handle null and undefined", () => {
+      expect(sanitizeString(null)).toBe("");
+      expect(sanitizeString(undefined)).toBe("");
+    });
+
+    it("should handle non-string values", () => {
+      expect(sanitizeString(123 as any)).toBe("123");
+      expect(sanitizeString(true as any)).toBe("true");
+    });
+
+    it("should prevent data exfiltration via img tags", () => {
+      const dirty = '<img src="x" onerror="fetch(\'/steal?data=\'+document.cookie)">';
+      const clean = sanitizeString(dirty);
+
+      expect(clean).not.toContain("onerror");
+      expect(clean).not.toContain("fetch");
+    });
+
+    it("should remove style tags with malicious CSS", () => {
+      const dirty = '<style>body { background: url("javascript:alert(1)") }</style>Hello';
+      const clean = sanitizeString(dirty);
+
+      expect(clean).not.toContain("<style>");
+      expect(clean).not.toContain("javascript:");
+    });
+  });
+
+  describe("sanitizeObject", () => {
+    it("should sanitize all string values in an object", () => {
+      const dirty = {
+        name: '<script>alert("XSS")</script>John',
+        description: "Safe text",
+        nested: {
+          value: '<img src=x onerror="alert(1)">',
+        },
+      };
+
+      const clean = sanitizeObject(dirty);
+
+      expect(clean.name).not.toContain("<script>");
+      expect(clean.name).toContain("John");
+      expect(clean.description).toBe("Safe text");
+      expect(clean.nested.value).not.toContain("onerror");
+    });
+
+    it("should preserve non-string values", () => {
+      const input = {
+        string: "test",
+        number: 123,
+        boolean: true,
+        nullValue: null,
+        undefinedValue: undefined,
+      };
+
+      const clean = sanitizeObject(input);
+
+      expect(clean.number).toBe(123);
+      expect(clean.boolean).toBe(true);
+      expect(clean.nullValue).toBeNull();
+      expect(clean.undefinedValue).toBeUndefined();
+    });
+
+    it("should handle arrays within objects", () => {
+      const input = {
+        tags: ["<script>alert(1)</script>safe", "another<script>"],
+      };
+
+      const clean = sanitizeObject(input);
+
+      expect(clean.tags[0]).not.toContain("<script>");
+      expect(clean.tags[0]).toContain("safe");
+      expect(clean.tags[1]).not.toContain("<script>");
+    });
+
+    it("should handle deeply nested objects", () => {
+      const input = {
+        level1: {
+          level2: {
+            level3: {
+              xss: "<script>alert(1)</script>",
+            },
+          },
+        },
+      };
+
+      const clean = sanitizeObject(input);
+
+      expect(clean.level1.level2.level3.xss).not.toContain("<script>");
+    });
+  });
+
+  describe("sanitizeArray", () => {
+    it("should sanitize all strings in an array", () => {
+      const dirty = ["<script>alert(1)</script>safe", "clean", '<img src=x onerror="alert(2)">'];
+
+      const clean = sanitizeArray(dirty);
+
+      expect(clean[0]).not.toContain("<script>");
+      expect(clean[0]).toContain("safe");
+      expect(clean[1]).toBe("clean");
+      expect(clean[2]).not.toContain("onerror");
+    });
+
+    it("should handle arrays with mixed types", () => {
+      const input = ["<script>test</script>", 123, true, null, { key: "<b>value</b>" }];
+
+      const clean = sanitizeArray(input);
+
+      expect(clean[0]).not.toContain("<script>");
+      expect(clean[1]).toBe(123);
+      expect(clean[2]).toBe(true);
+      expect(clean[3]).toBeNull();
+      expect((clean[4] as any).key).toContain("<b>");
+    });
+
+    it("should handle nested arrays", () => {
+      const input = [["<script>alert(1)</script>", "safe"], ['<img src=x onerror="alert(2)">']];
+
+      const clean = sanitizeArray(input);
+
+      expect(clean[0][0]).not.toContain("<script>");
+      expect(clean[0][1]).toBe("safe");
+      expect(clean[1][0]).not.toContain("onerror");
+    });
+  });
+});
diff --git a/apps/api/src/common/utils/sanitize.util.ts b/apps/api/src/common/utils/sanitize.util.ts
new file mode 100644
index 0000000..cb87ed4
--- /dev/null
+++ b/apps/api/src/common/utils/sanitize.util.ts
@@ -0,0 +1,123 @@
+/**
+ * Sanitization Utilities
+ *
+ * Provides HTML/XSS sanitization for user-controlled input.
+ * Uses sanitize-html to prevent XSS attacks.
+ */
+
+import sanitizeHtml from "sanitize-html";
+
+/**
+ * Sanitize options for strict mode (default)
+ * Allows only safe tags and attributes, removes all scripts and dangerous content
+ */
+const STRICT_OPTIONS: sanitizeHtml.IOptions = {
+  allowedTags: ["p", "b", "i", "em", "strong", "a", "br", "ul", "ol", "li"],
+  allowedAttributes: {
+    a: ["href"],
+  },
+  allowedSchemes: ["http", "https", "mailto"],
+  disallowedTagsMode: "discard",
+};
+
+/**
+ * Sanitize a string value to prevent XSS attacks
+ * Removes dangerous HTML tags, scripts, and event handlers
+ *
+ * @param value - String to sanitize
+ * @param options - Optional sanitize-html options (defaults to strict)
+ * @returns Sanitized string
+ */
+export function sanitizeString(
+  value: string | null | undefined,
+  options: sanitizeHtml.IOptions = STRICT_OPTIONS
+): string {
+  if (value === null || value === undefined) {
+    return "";
+  }
+
+  // Convert non-strings to strings
+  const stringValue = typeof value === "string" ? value : String(value);
+
+  return sanitizeHtml(stringValue, options);
+}
+
+/**
+ * Sanitize all string values in an object recursively
+ * Preserves object structure and non-string values
+ *
+ * @param obj - Object to sanitize
+ * @param options - Optional sanitize-html options
+ * @returns Sanitized object
+ */
+export function sanitizeObject<T extends Record<string, unknown> | null | undefined>(
+  obj: T,
+  options: sanitizeHtml.IOptions = STRICT_OPTIONS
+): T {
+  // Handle null/undefined
+  if (obj == null) {
+    return obj;
+  }
+
+  // Handle arrays
+  if (Array.isArray(obj)) {
+    return obj.map((item: unknown) => {
+      if (typeof item === "string") {
+        return sanitizeString(item, options);
+      }
+      if (typeof item === "object" && item !== null) {
+        return sanitizeObject(item as Record<string, unknown>, options);
+      }
+      return item;
+    }) as unknown as T;
+  }
+
+  // Handle objects
+  const sanitized: Record<string, unknown> = {};
+
+  for (const [key, value] of Object.entries(obj)) {
+    if (typeof value === "string") {
+      sanitized[key] = sanitizeString(value, options);
+    } else if (Array.isArray(value)) {
+      sanitized[key] = sanitizeArray(value, options);
+    } else if (typeof value === "object" && value !== null) {
+      sanitized[key] = sanitizeObject(value as Record<string, unknown>, options);
+    } else {
+      sanitized[key] = value;
+    }
+  }
+
+  return sanitized as T;
+}
+
+/**
+ * Sanitize all string values in an array recursively
+ * Preserves array structure and non-string values
+ *
+ * @param arr - Array to sanitize
+ * @param options - Optional sanitize-html options
+ * @returns Sanitized array
+ */
+export function sanitizeArray<T extends unknown[] = unknown[]>(
+  arr: T,
+  options: sanitizeHtml.IOptions = STRICT_OPTIONS
+): T {
+  if (!Array.isArray(arr)) {
+    return arr;
+  }
+
+  const result = arr.map((item: unknown) => {
+    if (typeof item === "string") {
+      return sanitizeString(item, options);
+    }
+    if (Array.isArray(item)) {
+      return sanitizeArray(item as unknown[], options);
+    }
+    if (typeof item === "object" && item !== null) {
+      return sanitizeObject(item as Record<string, unknown>, options);
+    }
+    return item;
+  });
+
+  return result as T;
+}
diff --git a/apps/api/src/federation/dto/command.dto.ts b/apps/api/src/federation/dto/command.dto.ts
index db32c85..0636f9d 100644
--- a/apps/api/src/federation/dto/command.dto.ts
+++ b/apps/api/src/federation/dto/command.dto.ts
@@ -6,6 +6,7 @@
 
 import { IsString, IsObject, IsNotEmpty, IsNumber } from "class-validator";
 import type { CommandMessage } from "../types/message.types";
+import { SanitizeObject } from "../../common/decorators/sanitize.decorator";
 
 /**
  * DTO for sending a command to a remote instance
@@ -21,6 +22,7 @@ export class SendCommandDto {
 
   @IsObject()
   @IsNotEmpty()
+  @SanitizeObject()
   payload!: Record<string, unknown>;
 }
 
@@ -42,6 +44,7 @@ export class IncomingCommandDto implements CommandMessage {
 
   @IsObject()
   @IsNotEmpty()
+  @SanitizeObject()
   payload!: Record<string, unknown>;
 
   @IsNumber()
diff --git a/apps/api/src/federation/dto/connection.dto.ts b/apps/api/src/federation/dto/connection.dto.ts
index 0e3bebc..3a15765 100644
--- a/apps/api/src/federation/dto/connection.dto.ts
+++ b/apps/api/src/federation/dto/connection.dto.ts
@@ -5,6 +5,7 @@
  */
 
 import { IsString, IsUrl, IsOptional, IsObject, IsNumber } from "class-validator";
+import { Sanitize, SanitizeObject } from "../../common/decorators/sanitize.decorator";
 
 /**
  * DTO for initiating a connection
@@ -20,6 +21,7 @@ export class InitiateConnectionDto {
 export class AcceptConnectionDto {
   @IsOptional()
   @IsObject()
+  @SanitizeObject()
   metadata?: Record<string, unknown>;
 }
 
@@ -28,6 +30,7 @@ export class AcceptConnectionDto {
  */
 export class RejectConnectionDto {
   @IsString()
+  @Sanitize()
   reason!: string;
 }
 
@@ -37,6 +40,7 @@ export class RejectConnectionDto {
 export class DisconnectConnectionDto {
   @IsOptional()
   @IsString()
+  @Sanitize()
   reason?: string;
 }
 
diff --git a/apps/api/src/federation/dto/identity-linking.dto.ts b/apps/api/src/federation/dto/identity-linking.dto.ts
index 2468869..08598c3 100644
--- a/apps/api/src/federation/dto/identity-linking.dto.ts
+++ b/apps/api/src/federation/dto/identity-linking.dto.ts
@@ -5,6 +5,7 @@
  */
 
 import { IsString, IsEmail, IsOptional, IsObject, IsArray, IsNumber } from "class-validator";
+import { SanitizeObject } from "../../common/decorators/sanitize.decorator";
 
 /**
  * DTO for verifying identity from remote instance
@@ -81,6 +82,7 @@ export class CreateIdentityMappingDto {
 
   @IsOptional()
   @IsObject()
+  @SanitizeObject()
   metadata?: Record<string, unknown>;
 
   @IsOptional()
@@ -94,5 +96,6 @@ export class CreateIdentityMappingDto {
 export class UpdateIdentityMappingDto {
   @IsOptional()
   @IsObject()
+  @SanitizeObject()
   metadata?: Record<string, unknown>;
 }
diff --git a/apps/api/src/federation/dto/sanitization.integration.spec.ts b/apps/api/src/federation/dto/sanitization.integration.spec.ts
new file mode 100644
index 0000000..9e7d222
--- /dev/null
+++ b/apps/api/src/federation/dto/sanitization.integration.spec.ts
@@ -0,0 +1,225 @@
+/**
+ * DTO Sanitization Integration Tests
+ *
+ * Tests that DTOs properly sanitize XSS attempts.
+ */
+
+import { describe, it, expect } from "vitest";
+import { plainToInstance } from "class-transformer";
+import { validate } from "class-validator";
+import {
+  RejectConnectionDto,
+  DisconnectConnectionDto,
+  AcceptConnectionDto,
+} from "./connection.dto";
+import { CreateIdentityMappingDto, UpdateIdentityMappingDto } from "./identity-linking.dto";
+import { SendCommandDto, IncomingCommandDto } from "./command.dto";
+
+describe("DTO Sanitization Integration", () => {
+  describe("Connection DTOs", () => {
+    it("should sanitize rejection reason", async () => {
+      const dirty = {
+        reason: '<script>alert("XSS")</script>Connection rejected',
+      };
+
+      const dto = plainToInstance(RejectConnectionDto, dirty);
+      const errors = await validate(dto);
+
+      expect(errors).toHaveLength(0);
+      expect(dto.reason).not.toContain("<script>");
+      expect(dto.reason).toContain("Connection rejected");
+    });
+
+    it("should sanitize disconnection reason", async () => {
+      const dirty = {
+        reason: '<img src=x onerror="alert(1)">Goodbye',
+      };
+
+      const dto = plainToInstance(DisconnectConnectionDto, dirty);
+      const errors = await validate(dto);
+
+      expect(errors).toHaveLength(0);
+      expect(dto.reason).not.toContain("onerror");
+      expect(dto.reason).toContain("Goodbye");
+    });
+
+    it("should sanitize acceptance metadata", async () => {
+      const dirty = {
+        metadata: {
+          note: "<script>alert(1)</script>Important",
+          nested: {
+            value: "<img src=x onerror=\"fetch('/steal')\">",
+          },
+        },
+      };
+
+      const dto = plainToInstance(AcceptConnectionDto, dirty);
+      const errors = await validate(dto);
+
+      expect(errors).toHaveLength(0);
+      expect(dto.metadata!.note).not.toContain("<script>");
+      expect(dto.metadata!.note).toContain("Important");
+      expect((dto.metadata!.nested as any).value).not.toContain("onerror");
+    });
+  });
+
+  describe("Identity Linking DTOs", () => {
+    it("should sanitize identity mapping metadata", async () => {
+      const dirty = {
+        remoteInstanceId: "instance-123",
+        remoteUserId: "user-456",
+        oidcSubject: "sub-789",
+        email: "test@example.com",
+        metadata: {
+          displayName: '<script>alert("XSS")</script>John Doe',
+          bio: '<img src=x onerror="alert(1)">Developer',
+        },
+      };
+
+      const dto = plainToInstance(CreateIdentityMappingDto, dirty);
+      const errors = await validate(dto);
+
+      expect(errors).toHaveLength(0);
+      expect(dto.metadata!.displayName).not.toContain("<script>");
+      expect(dto.metadata!.displayName).toContain("John Doe");
+      expect(dto.metadata!.bio).not.toContain("onerror");
+    });
+
+    it("should sanitize update metadata", async () => {
+      const dirty = {
+        metadata: {
+          tags: ["<script>tag1</script>", "<b>tag2</b>"],
+        },
+      };
+
+      const dto = plainToInstance(UpdateIdentityMappingDto, dirty);
+      const errors = await validate(dto);
+
+      expect(errors).toHaveLength(0);
+      expect((dto.metadata!.tags as any)[0]).not.toContain("<script>");
+      expect((dto.metadata!.tags as any)[1]).toContain("<b>");
+    });
+  });
+
+  describe("Command DTOs", () => {
+    it("should sanitize command payload", async () => {
+      const dirty = {
+        connectionId: "conn-123",
+        commandType: "execute",
+        payload: {
+          script: '<script>alert("XSS")</script>console.log("hello")',
+          params: {
+            arg1: '<img src=x onerror="alert(1)">',
+          },
+        },
+      };
+
+      const dto = plainToInstance(SendCommandDto, dirty);
+      const errors = await validate(dto);
+
+      expect(errors).toHaveLength(0);
+      expect(dto.payload.script).not.toContain("<script>");
+      expect((dto.payload.params as any).arg1).not.toContain("onerror");
+    });
+
+    it("should sanitize incoming command payload", async () => {
+      const dirty = {
+        messageId: "msg-123",
+        instanceId: "instance-456",
+        commandType: "update",
+        payload: {
+          data: '<style>body{background:url("javascript:alert(1)")}</style>Data',
+          metadata: {
+            author: "<script>alert(1)</script>Admin",
+          },
+        },
+        timestamp: Date.now(),
+        signature: "sig-789",
+      };
+
+      const dto = plainToInstance(IncomingCommandDto, dirty);
+      const errors = await validate(dto);
+
+      expect(errors).toHaveLength(0);
+      expect(dto.payload.data).not.toContain("<style>");
+      expect(dto.payload.data).not.toContain("javascript:");
+      expect((dto.payload.metadata as any).author).not.toContain("<script>");
+    });
+
+    it("should handle deeply nested XSS attempts", async () => {
+      const dirty = {
+        connectionId: "conn-123",
+        commandType: "complex",
+        payload: {
+          level1: {
+            level2: {
+              level3: {
+                xss: "<script>alert(1)</script>",
+                array: ['<img src=x onerror="alert(2)">', "safe"],
+              },
+            },
+          },
+        },
+      };
+
+      const dto = plainToInstance(SendCommandDto, dirty);
+      const errors = await validate(dto);
+
+      expect(errors).toHaveLength(0);
+      const level3 = (dto.payload.level1 as any).level2.level3;
+      expect(level3.xss).not.toContain("<script>");
+      expect(level3.array[0]).not.toContain("onerror");
+      expect(level3.array[1]).toBe("safe");
+    });
+  });
+
+  describe("XSS Attack Vectors", () => {
+    it("should prevent javascript: URL injection", async () => {
+      const dirty = {
+        metadata: {
+          link: '<a href="javascript:alert(1)">Click</a>',
+        },
+      };
+
+      const dto = plainToInstance(AcceptConnectionDto, dirty);
+
+      expect(dto.metadata!.link).not.toContain("javascript:");
+    });
+
+    it("should prevent data exfiltration attempts", async () => {
+      const dirty = {
+        reason: "<img src=x onerror=\"fetch('/api/steal?cookie='+document.cookie)\">",
+      };
+
+      const dto = plainToInstance(RejectConnectionDto, dirty);
+
+      expect(dto.reason).not.toContain("onerror");
+      expect(dto.reason).not.toContain("fetch");
+      expect(dto.reason).not.toContain("document.cookie");
+    });
+
+    it("should prevent CSS-based XSS", async () => {
+      const dirty = {
+        metadata: {
+          style: '<style>@import "http://evil.com/steal.css";</style>',
+        },
+      };
+
+      const dto = plainToInstance(AcceptConnectionDto, dirty);
+
+      expect(dto.metadata!.style).not.toContain("<style>");
+      expect(dto.metadata!.style).not.toContain("@import");
+    });
+
+    it("should prevent SVG-based XSS", async () => {
+      const dirty = {
+        reason: '<svg onload="alert(1)">Test</svg>',
+      };
+
+      const dto = plainToInstance(RejectConnectionDto, dirty);
+
+      expect(dto.reason).not.toContain("<svg");
+      expect(dto.reason).not.toContain("onload");
+    });
+  });
+});
diff --git a/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-common-decorators-sanitize.decorator.ts_20260203-2144_1_remediation_needed.md b/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-common-decorators-sanitize.decorator.ts_20260203-2144_1_remediation_needed.md
new file mode 100644
index 0000000..d47650b
--- /dev/null
+++ b/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-common-decorators-sanitize.decorator.ts_20260203-2144_1_remediation_needed.md
@@ -0,0 +1,20 @@
+# QA Remediation Report
+
+**File:** /home/jwoltje/src/mosaic-stack/apps/api/src/common/decorators/sanitize.decorator.ts
+**Tool Used:** Write
+**Epic:** general
+**Iteration:** 1
+**Generated:** 2026-02-03 21:44:16
+
+## Status
+
+Pending QA validation
+
+## Next Steps
+
+This report was created by the QA automation hook.
+To process this report, run:
+
+```bash
+claude -p "Use Task tool to launch universal-qa-agent for report: /home/jwoltje/src/mosaic-stack/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-common-decorators-sanitize.decorator.ts_20260203-2144_1_remediation_needed.md"
+```
diff --git a/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-common-decorators-sanitize.decorator.ts_20260203-2145_1_remediation_needed.md b/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-common-decorators-sanitize.decorator.ts_20260203-2145_1_remediation_needed.md
new file mode 100644
index 0000000..450a184
--- /dev/null
+++ b/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-common-decorators-sanitize.decorator.ts_20260203-2145_1_remediation_needed.md
@@ -0,0 +1,20 @@
+# QA Remediation Report
+
+**File:** /home/jwoltje/src/mosaic-stack/apps/api/src/common/decorators/sanitize.decorator.ts
+**Tool Used:** Edit
+**Epic:** general
+**Iteration:** 1
+**Generated:** 2026-02-03 21:45:25
+
+## Status
+
+Pending QA validation
+
+## Next Steps
+
+This report was created by the QA automation hook.
+To process this report, run:
+
+```bash
+claude -p "Use Task tool to launch universal-qa-agent for report: /home/jwoltje/src/mosaic-stack/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-common-decorators-sanitize.decorator.ts_20260203-2145_1_remediation_needed.md"
+```
diff --git a/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-common-decorators-sanitize.decorator.ts_20260203-2145_2_remediation_needed.md b/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-common-decorators-sanitize.decorator.ts_20260203-2145_2_remediation_needed.md
new file mode 100644
index 0000000..be1e317
--- /dev/null
+++ b/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-common-decorators-sanitize.decorator.ts_20260203-2145_2_remediation_needed.md
@@ -0,0 +1,20 @@
+# QA Remediation Report
+
+**File:** /home/jwoltje/src/mosaic-stack/apps/api/src/common/decorators/sanitize.decorator.ts
+**Tool Used:** Edit
+**Epic:** general
+**Iteration:** 2
+**Generated:** 2026-02-03 21:45:31
+
+## Status
+
+Pending QA validation
+
+## Next Steps
+
+This report was created by the QA automation hook.
+To process this report, run:
+
+```bash
+claude -p "Use Task tool to launch universal-qa-agent for report: /home/jwoltje/src/mosaic-stack/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-common-decorators-sanitize.decorator.ts_20260203-2145_2_remediation_needed.md"
+```
diff --git a/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-common-decorators-sanitize.decorator.ts_20260203-2146_1_remediation_needed.md b/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-common-decorators-sanitize.decorator.ts_20260203-2146_1_remediation_needed.md
new file mode 100644
index 0000000..288fcc6
--- /dev/null
+++ b/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-common-decorators-sanitize.decorator.ts_20260203-2146_1_remediation_needed.md
@@ -0,0 +1,20 @@
+# QA Remediation Report
+
+**File:** /home/jwoltje/src/mosaic-stack/apps/api/src/common/decorators/sanitize.decorator.ts
+**Tool Used:** Edit
+**Epic:** general
+**Iteration:** 1
+**Generated:** 2026-02-03 21:46:21
+
+## Status
+
+Pending QA validation
+
+## Next Steps
+
+This report was created by the QA automation hook.
+To process this report, run:
+
+```bash
+claude -p "Use Task tool to launch universal-qa-agent for report: /home/jwoltje/src/mosaic-stack/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-common-decorators-sanitize.decorator.ts_20260203-2146_1_remediation_needed.md"
+```
diff --git a/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-common-utils-sanitize.util.spec.ts_20260203-2143_1_remediation_needed.md b/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-common-utils-sanitize.util.spec.ts_20260203-2143_1_remediation_needed.md
new file mode 100644
index 0000000..161fdb3
--- /dev/null
+++ b/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-common-utils-sanitize.util.spec.ts_20260203-2143_1_remediation_needed.md
@@ -0,0 +1,20 @@
+# QA Remediation Report
+
+**File:** /home/jwoltje/src/mosaic-stack/apps/api/src/common/utils/sanitize.util.spec.ts
+**Tool Used:** Write
+**Epic:** general
+**Iteration:** 1
+**Generated:** 2026-02-03 21:43:46
+
+## Status
+
+Pending QA validation
+
+## Next Steps
+
+This report was created by the QA automation hook.
+To process this report, run:
+
+```bash
+claude -p "Use Task tool to launch universal-qa-agent for report: /home/jwoltje/src/mosaic-stack/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-common-utils-sanitize.util.spec.ts_20260203-2143_1_remediation_needed.md"
+```
diff --git a/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-common-utils-sanitize.util.ts_20260203-2144_1_remediation_needed.md b/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-common-utils-sanitize.util.ts_20260203-2144_1_remediation_needed.md
new file mode 100644
index 0000000..4874bea
--- /dev/null
+++ b/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-common-utils-sanitize.util.ts_20260203-2144_1_remediation_needed.md
@@ -0,0 +1,20 @@
+# QA Remediation Report
+
+**File:** /home/jwoltje/src/mosaic-stack/apps/api/src/common/utils/sanitize.util.ts
+**Tool Used:** Write
+**Epic:** general
+**Iteration:** 1
+**Generated:** 2026-02-03 21:44:05
+
+## Status
+
+Pending QA validation
+
+## Next Steps
+
+This report was created by the QA automation hook.
+To process this report, run:
+
+```bash
+claude -p "Use Task tool to launch universal-qa-agent for report: /home/jwoltje/src/mosaic-stack/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-common-utils-sanitize.util.ts_20260203-2144_1_remediation_needed.md"
+```
diff --git a/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-common-utils-sanitize.util.ts_20260203-2146_1_remediation_needed.md b/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-common-utils-sanitize.util.ts_20260203-2146_1_remediation_needed.md
new file mode 100644
index 0000000..82dbdb6
--- /dev/null
+++ b/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-common-utils-sanitize.util.ts_20260203-2146_1_remediation_needed.md
@@ -0,0 +1,20 @@
+# QA Remediation Report
+
+**File:** /home/jwoltje/src/mosaic-stack/apps/api/src/common/utils/sanitize.util.ts
+**Tool Used:** Edit
+**Epic:** general
+**Iteration:** 1
+**Generated:** 2026-02-03 21:46:12
+
+## Status
+
+Pending QA validation
+
+## Next Steps
+
+This report was created by the QA automation hook.
+To process this report, run:
+
+```bash
+claude -p "Use Task tool to launch universal-qa-agent for report: /home/jwoltje/src/mosaic-stack/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-common-utils-sanitize.util.ts_20260203-2146_1_remediation_needed.md"
+```
diff --git a/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-common-utils-sanitize.util.ts_20260203-2146_2_remediation_needed.md b/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-common-utils-sanitize.util.ts_20260203-2146_2_remediation_needed.md
new file mode 100644
index 0000000..ff19c5a
--- /dev/null
+++ b/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-common-utils-sanitize.util.ts_20260203-2146_2_remediation_needed.md
@@ -0,0 +1,20 @@
+# QA Remediation Report
+
+**File:** /home/jwoltje/src/mosaic-stack/apps/api/src/common/utils/sanitize.util.ts
+**Tool Used:** Edit
+**Epic:** general
+**Iteration:** 2
+**Generated:** 2026-02-03 21:46:55
+
+## Status
+
+Pending QA validation
+
+## Next Steps
+
+This report was created by the QA automation hook.
+To process this report, run:
+
+```bash
+claude -p "Use Task tool to launch universal-qa-agent for report: /home/jwoltje/src/mosaic-stack/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-common-utils-sanitize.util.ts_20260203-2146_2_remediation_needed.md"
+```
diff --git a/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-common-utils-sanitize.util.ts_20260203-2147_1_remediation_needed.md b/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-common-utils-sanitize.util.ts_20260203-2147_1_remediation_needed.md
new file mode 100644
index 0000000..1691176
--- /dev/null
+++ b/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-common-utils-sanitize.util.ts_20260203-2147_1_remediation_needed.md
@@ -0,0 +1,20 @@
+# QA Remediation Report
+
+**File:** /home/jwoltje/src/mosaic-stack/apps/api/src/common/utils/sanitize.util.ts
+**Tool Used:** Edit
+**Epic:** general
+**Iteration:** 1
+**Generated:** 2026-02-03 21:47:02
+
+## Status
+
+Pending QA validation
+
+## Next Steps
+
+This report was created by the QA automation hook.
+To process this report, run:
+
+```bash
+claude -p "Use Task tool to launch universal-qa-agent for report: /home/jwoltje/src/mosaic-stack/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-common-utils-sanitize.util.ts_20260203-2147_1_remediation_needed.md"
+```
diff --git a/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-common-utils-sanitize.util.ts_20260203-2147_2_remediation_needed.md b/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-common-utils-sanitize.util.ts_20260203-2147_2_remediation_needed.md
new file mode 100644
index 0000000..a2d7e12
--- /dev/null
+++ b/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-common-utils-sanitize.util.ts_20260203-2147_2_remediation_needed.md
@@ -0,0 +1,20 @@
+# QA Remediation Report
+
+**File:** /home/jwoltje/src/mosaic-stack/apps/api/src/common/utils/sanitize.util.ts
+**Tool Used:** Edit
+**Epic:** general
+**Iteration:** 2
+**Generated:** 2026-02-03 21:47:27
+
+## Status
+
+Pending QA validation
+
+## Next Steps
+
+This report was created by the QA automation hook.
+To process this report, run:
+
+```bash
+claude -p "Use Task tool to launch universal-qa-agent for report: /home/jwoltje/src/mosaic-stack/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-common-utils-sanitize.util.ts_20260203-2147_2_remediation_needed.md"
+```
diff --git a/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-federation-dto-command.dto.ts_20260203-2144_1_remediation_needed.md b/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-federation-dto-command.dto.ts_20260203-2144_1_remediation_needed.md
new file mode 100644
index 0000000..b15007e
--- /dev/null
+++ b/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-federation-dto-command.dto.ts_20260203-2144_1_remediation_needed.md
@@ -0,0 +1,20 @@
+# QA Remediation Report
+
+**File:** /home/jwoltje/src/mosaic-stack/apps/api/src/federation/dto/command.dto.ts
+**Tool Used:** Edit
+**Epic:** general
+**Iteration:** 1
+**Generated:** 2026-02-03 21:44:42
+
+## Status
+
+Pending QA validation
+
+## Next Steps
+
+This report was created by the QA automation hook.
+To process this report, run:
+
+```bash
+claude -p "Use Task tool to launch universal-qa-agent for report: /home/jwoltje/src/mosaic-stack/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-federation-dto-command.dto.ts_20260203-2144_1_remediation_needed.md"
+```
diff --git a/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-federation-dto-command.dto.ts_20260203-2144_2_remediation_needed.md b/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-federation-dto-command.dto.ts_20260203-2144_2_remediation_needed.md
new file mode 100644
index 0000000..d15bbfc
--- /dev/null
+++ b/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-federation-dto-command.dto.ts_20260203-2144_2_remediation_needed.md
@@ -0,0 +1,20 @@
+# QA Remediation Report
+
+**File:** /home/jwoltje/src/mosaic-stack/apps/api/src/federation/dto/command.dto.ts
+**Tool Used:** Edit
+**Epic:** general
+**Iteration:** 2
+**Generated:** 2026-02-03 21:44:50
+
+## Status
+
+Pending QA validation
+
+## Next Steps
+
+This report was created by the QA automation hook.
+To process this report, run:
+
+```bash
+claude -p "Use Task tool to launch universal-qa-agent for report: /home/jwoltje/src/mosaic-stack/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-federation-dto-command.dto.ts_20260203-2144_2_remediation_needed.md"
+```
diff --git a/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-federation-dto-connection.dto.ts_20260203-2144_1_remediation_needed.md b/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-federation-dto-connection.dto.ts_20260203-2144_1_remediation_needed.md
new file mode 100644
index 0000000..06f8c1a
--- /dev/null
+++ b/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-federation-dto-connection.dto.ts_20260203-2144_1_remediation_needed.md
@@ -0,0 +1,20 @@
+# QA Remediation Report
+
+**File:** /home/jwoltje/src/mosaic-stack/apps/api/src/federation/dto/connection.dto.ts
+**Tool Used:** Edit
+**Epic:** general
+**Iteration:** 1
+**Generated:** 2026-02-03 21:44:21
+
+## Status
+
+Pending QA validation
+
+## Next Steps
+
+This report was created by the QA automation hook.
+To process this report, run:
+
+```bash
+claude -p "Use Task tool to launch universal-qa-agent for report: /home/jwoltje/src/mosaic-stack/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-federation-dto-connection.dto.ts_20260203-2144_1_remediation_needed.md"
+```
diff --git a/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-federation-dto-connection.dto.ts_20260203-2144_2_remediation_needed.md b/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-federation-dto-connection.dto.ts_20260203-2144_2_remediation_needed.md
new file mode 100644
index 0000000..2842303
--- /dev/null
+++ b/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-federation-dto-connection.dto.ts_20260203-2144_2_remediation_needed.md
@@ -0,0 +1,20 @@
+# QA Remediation Report
+
+**File:** /home/jwoltje/src/mosaic-stack/apps/api/src/federation/dto/connection.dto.ts
+**Tool Used:** Edit
+**Epic:** general
+**Iteration:** 2
+**Generated:** 2026-02-03 21:44:26
+
+## Status
+
+Pending QA validation
+
+## Next Steps
+
+This report was created by the QA automation hook.
+To process this report, run:
+
+```bash
+claude -p "Use Task tool to launch universal-qa-agent for report: /home/jwoltje/src/mosaic-stack/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-federation-dto-connection.dto.ts_20260203-2144_2_remediation_needed.md"
+```
diff --git a/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-federation-dto-identity-linking.dto.ts_20260203-2144_1_remediation_needed.md b/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-federation-dto-identity-linking.dto.ts_20260203-2144_1_remediation_needed.md
new file mode 100644
index 0000000..f9604c5
--- /dev/null
+++ b/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-federation-dto-identity-linking.dto.ts_20260203-2144_1_remediation_needed.md
@@ -0,0 +1,20 @@
+# QA Remediation Report
+
+**File:** /home/jwoltje/src/mosaic-stack/apps/api/src/federation/dto/identity-linking.dto.ts
+**Tool Used:** Edit
+**Epic:** general
+**Iteration:** 1
+**Generated:** 2026-02-03 21:44:31
+
+## Status
+
+Pending QA validation
+
+## Next Steps
+
+This report was created by the QA automation hook.
+To process this report, run:
+
+```bash
+claude -p "Use Task tool to launch universal-qa-agent for report: /home/jwoltje/src/mosaic-stack/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-federation-dto-identity-linking.dto.ts_20260203-2144_1_remediation_needed.md"
+```
diff --git a/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-federation-dto-identity-linking.dto.ts_20260203-2144_2_remediation_needed.md b/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-federation-dto-identity-linking.dto.ts_20260203-2144_2_remediation_needed.md
new file mode 100644
index 0000000..1464088
--- /dev/null
+++ b/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-federation-dto-identity-linking.dto.ts_20260203-2144_2_remediation_needed.md
@@ -0,0 +1,20 @@
+# QA Remediation Report
+
+**File:** /home/jwoltje/src/mosaic-stack/apps/api/src/federation/dto/identity-linking.dto.ts
+**Tool Used:** Edit
+**Epic:** general
+**Iteration:** 2
+**Generated:** 2026-02-03 21:44:37
+
+## Status
+
+Pending QA validation
+
+## Next Steps
+
+This report was created by the QA automation hook.
+To process this report, run:
+
+```bash
+claude -p "Use Task tool to launch universal-qa-agent for report: /home/jwoltje/src/mosaic-stack/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-federation-dto-identity-linking.dto.ts_20260203-2144_2_remediation_needed.md"
+```
diff --git a/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-federation-dto-sanitization.integration.spec.ts_20260203-2145_1_remediation_needed.md b/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-federation-dto-sanitization.integration.spec.ts_20260203-2145_1_remediation_needed.md
new file mode 100644
index 0000000..a2f3033
--- /dev/null
+++ b/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-federation-dto-sanitization.integration.spec.ts_20260203-2145_1_remediation_needed.md
@@ -0,0 +1,20 @@
+# QA Remediation Report
+
+**File:** /home/jwoltje/src/mosaic-stack/apps/api/src/federation/dto/sanitization.integration.spec.ts
+**Tool Used:** Write
+**Epic:** general
+**Iteration:** 1
+**Generated:** 2026-02-03 21:45:15
+
+## Status
+
+Pending QA validation
+
+## Next Steps
+
+This report was created by the QA automation hook.
+To process this report, run:
+
+```bash
+claude -p "Use Task tool to launch universal-qa-agent for report: /home/jwoltje/src/mosaic-stack/docs/reports/qa-automation/pending/home-jwoltje-src-mosaic-stack-apps-api-src-federation-dto-sanitization.integration.spec.ts_20260203-2145_1_remediation_needed.md"
+```