diff --git a/src/interfaces/database.ts b/src/interfaces/database.ts
index 7f491e6b..eeedb428 100644
--- a/src/interfaces/database.ts
+++ b/src/interfaces/database.ts
@@ -5,11 +5,23 @@ export interface QueryExecResult {
   values: Array<Array<SqlValue>>;
 }
 
+export interface DatabaseExecResult {
+  changes: number;
+  lastId?: number;
+}
+
 export interface DatabaseService {
   initialize(): Promise<void>;
   query(sql: string, params?: unknown[]): Promise<QueryExecResult[]>;
-  run(
-    sql: string,
-    params?: unknown[],
-  ): Promise<{ changes: number; lastId?: number }>;
+  run(sql: string, params?: unknown[]): Promise<DatabaseExecResult>;
 }
+
+/**
+ * Generic database result type for mapped query results
+ */
+export type DatabaseResult<T = Record<string, unknown>> = T;
+
+/**
+ * Database query result that can be either a single result or an array
+ */
+export type DatabaseQueryResult<T = Record<string, unknown>> = T | T[] | null;
diff --git a/src/services/PlatformService.ts b/src/services/PlatformService.ts
index 2eecf949..f8b65853 100644
--- a/src/services/PlatformService.ts
+++ b/src/services/PlatformService.ts
@@ -1,4 +1,4 @@
-import { QueryExecResult } from "@/interfaces/database";
+import { QueryExecResult, DatabaseExecResult } from "@/interfaces/database";
 
 /**
  * Represents the result of an image capture or selection operation.
@@ -145,10 +145,7 @@ export interface PlatformService {
    * @param params - The parameters to pass to the statement
    * @returns Promise resolving to the result of the statement
    */
-  dbExec(
-    sql: string,
-    params?: unknown[],
-  ): Promise<{ changes: number; lastId?: number }>;
+  dbExec(sql: string, params?: unknown[]): Promise<DatabaseExecResult>;
 
   /**
    * Executes a SQL query and returns the first row as an array.
diff --git a/src/utils/PlatformServiceMixin.ts b/src/utils/PlatformServiceMixin.ts
index c074a2da..2f8422c6 100644
--- a/src/utils/PlatformServiceMixin.ts
+++ b/src/utils/PlatformServiceMixin.ts
@@ -40,6 +40,8 @@ import { mapColumnsToValues, parseJsonField } from "@/db/databaseUtil";
 import { MASTER_SETTINGS_KEY, type Settings } from "@/db/tables/settings";
 import * as databaseUtil from "@/db/databaseUtil";
 import { logger } from "@/utils/logger";
+import { Contact } from "@/db/tables/contacts";
+import { QueryExecResult, DatabaseExecResult } from "@/interfaces/database";
 
 // =================================================
 // CACHING INFRASTRUCTURE
@@ -385,7 +387,10 @@ export const PlatformServiceMixin = {
      * @param sql SQL query string
      * @param params Query parameters
      */
-    async $db(sql: string, params: unknown[] = []): Promise<any> {
+    async $db(
+      sql: string,
+      params: unknown[] = [],
+    ): Promise<QueryExecResult | undefined> {
       return await (this as any).platformService.dbQuery(sql, params);
     },
 
@@ -394,7 +399,10 @@ export const PlatformServiceMixin = {
      * @param sql SQL statement string
      * @param params Statement parameters
      */
-    async $exec(sql: string, params: unknown[] = []): Promise<any> {
+    async $exec(
+      sql: string,
+      params: unknown[] = [],
+    ): Promise<DatabaseExecResult> {
       return await (this as any).platformService.dbExec(sql, params);
     },
 
@@ -403,7 +411,10 @@ export const PlatformServiceMixin = {
      * @param sql SQL query string
      * @param params Query parameters
      */
-    async $one(sql: string, params: unknown[] = []): Promise<any> {
+    async $one(
+      sql: string,
+      params: unknown[] = [],
+    ): Promise<unknown[] | undefined> {
       return await (this as any).platformService.dbGetOneRow(sql, params);
     },
 
@@ -418,12 +429,16 @@ export const PlatformServiceMixin = {
      * @param params Query parameters
      * @returns Mapped array of results
      */
-    async $query(sql: string, params: unknown[] = []): Promise<any[]> {
+    async $query<T = Record<string, unknown>>(
+      sql: string,
+      params: unknown[] = [],
+    ): Promise<T[]> {
       const result = await (this as any).platformService.dbQuery(sql, params);
       if (!result?.columns || !result?.values) {
         return [];
       }
-      return mapColumnsToValues(result.columns, result.values) || [];
+      const mappedResults = mapColumnsToValues(result.columns, result.values);
+      return mappedResults as T[];
     },
 
     /**
@@ -432,9 +447,12 @@ export const PlatformServiceMixin = {
      * @param params Query parameters
      * @returns First mapped result or null
      */
-    async $first(sql: string, params: unknown[] = []): Promise<any | null> {
+    async $first<T = Record<string, unknown>>(
+      sql: string,
+      params: unknown[] = [],
+    ): Promise<T | null> {
       const results = await (this as any).$query(sql, params);
-      return results.length > 0 ? results[0] : null;
+      return results.length > 0 ? (results[0] as T) : null;
     },
 
     // =================================================
@@ -446,9 +464,9 @@ export const PlatformServiceMixin = {
      * Ultra-concise shortcut with 60s TTL for performance
      * @returns Cached mapped array of all contacts
      */
-    async $contacts(): Promise<any[]> {
+    async $contacts(): Promise<Contact[]> {
       const cacheKey = "contacts_all";
-      const cached = this._getCached<any[]>(cacheKey);
+      const cached = this._getCached<Contact[]>(cacheKey);
       if (cached) {
         return cached;
       }
@@ -456,7 +474,11 @@ export const PlatformServiceMixin = {
       const contacts = await this.$query(
         "SELECT * FROM contacts ORDER BY name",
       );
-      return this._setCached(cacheKey, contacts, CACHE_DEFAULTS.contacts);
+      return this._setCached(
+        cacheKey,
+        contacts as Contact[],
+        CACHE_DEFAULTS.contacts,
+      );
     },
 
     /**
@@ -656,13 +678,19 @@ declare module "@vue/runtime-core" {
     capabilities: any;
 
     // Ultra-concise database methods (shortest possible names)
-    $db(sql: string, params?: unknown[]): Promise<any>;
-    $exec(sql: string, params?: unknown[]): Promise<any>;
-    $one(sql: string, params?: unknown[]): Promise<any>;
+    $db(sql: string, params?: unknown[]): Promise<QueryExecResult | undefined>;
+    $exec(sql: string, params?: unknown[]): Promise<DatabaseExecResult>;
+    $one(sql: string, params?: unknown[]): Promise<unknown[] | undefined>;
 
     // Query + mapping combo methods
-    $query(sql: string, params?: unknown[]): Promise<any[]>;
-    $first(sql: string, params?: unknown[]): Promise<any | null>;
+    $query<T = Record<string, unknown>>(
+      sql: string,
+      params?: unknown[],
+    ): Promise<T[]>;
+    $first<T = Record<string, unknown>>(
+      sql: string,
+      params?: unknown[],
+    ): Promise<T | null>;
 
     // Enhanced utility methods
     $dbQuery(sql: string, params?: unknown[]): Promise<any>;
@@ -680,7 +708,7 @@ declare module "@vue/runtime-core" {
     $withTransaction<T>(fn: () => Promise<T>): Promise<T>;
 
     // Cached specialized shortcuts (massive performance boost)
-    $contacts(): Promise<any[]>;
+    $contacts(): Promise<Contact[]>;
     $settings(defaults?: Settings): Promise<Settings>;
     $accountSettings(did?: string, defaults?: Settings): Promise<Settings>;