diff --git a/package.json b/package.json
index ea65394910..f096795576 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,7 @@
     "ios": "cd apps/expo && bun ios",
     "lefthook": "lefthook install",
     "lint": "biome check --write",
-    "lint:custom": "bun run scripts/lint/no-raw-typeof.ts && bun run scripts/lint/no-raw-regex.ts && bun run packages/env/scripts/no-raw-process-env.ts && bun run scripts/lint/no-duplicate-guards.ts && bun run scripts/lint/no-unauth-routes.ts",
+    "lint:custom": "bun run scripts/lint/no-raw-typeof.ts && bun run scripts/lint/no-raw-regex.ts && bun run packages/env/scripts/no-raw-process-env.ts && bun run scripts/lint/no-duplicate-guards.ts && bun run scripts/lint/no-unauth-routes.ts && bun run scripts/lint/check-drizzle-migrations.ts",
     "lint:strict": "biome check && bun run lint:custom",
     "lint-unsafe": "biome check --write --unsafe",
     "mcp": "bun run --cwd packages/mcp dev",
diff --git a/scripts/check-all.ts b/scripts/check-all.ts
index 8bba7e6e46..5df6de6a9b 100644
--- a/scripts/check-all.ts
+++ b/scripts/check-all.ts
@@ -82,6 +82,10 @@ const ALL_CHECKS: CheckDef[] = [
     name: 'no-unauth-routes',
     script: join(ROOT, 'scripts', 'lint', 'no-unauth-routes.ts'),
   },
+  {
+    name: 'check-drizzle-migrations',
+    script: join(ROOT, 'scripts', 'lint', 'check-drizzle-migrations.ts'),
+  },
   {
     name: 'check-type-casts',
     script: join(ROOT, 'packages', 'checks', 'src', 'check-type-casts.ts'),
diff --git a/scripts/lint/check-drizzle-migrations.ts b/scripts/lint/check-drizzle-migrations.ts
new file mode 100644
index 0000000000..d4d5c1caa9
--- /dev/null
+++ b/scripts/lint/check-drizzle-migrations.ts
@@ -0,0 +1,60 @@
+#!/usr/bin/env bun
+
+import { existsSync, readdirSync, readFileSync } from 'node:fs';
+import { join } from 'node:path';
+
+const ROOT = join(import.meta.dir, '..', '..');
+
+const MIGRATION_TARGETS = [
+  { name: 'packages/api', allowManual: new Set(['0010_great_colleen_wing.sql']) },
+  { name: 'packages/osm-db', allowManual: new Set(['0000_extensions.sql']) },
+];
+
+const DRIZZLE_FILE_PATTERN = /^\d{4}_[a-z0-9]+(?:_[a-z0-9]+)+\.sql$/;
+const DRIZZLE_TEMPLATE_COMMENT = '-- Custom SQL migration file, put your code below! --';
+
+interface Violation {
+  packageName: string;
+  message: string;
+}
+
+function checkTarget(target: (typeof MIGRATION_TARGETS)[number], violations: Violation[]): void {
+  const drizzleDir = join(ROOT, target.name, 'drizzle');
+  if (!existsSync(drizzleDir)) return;
+
+  const sqlFiles = readdirSync(drizzleDir)
+    .filter((file) => file.endsWith('.sql'))
+    .sort();
+
+  for (const file of sqlFiles) {
+    if (target.allowManual.has(file)) continue;
+
+    if (!DRIZZLE_FILE_PATTERN.test(file)) {
+      violations.push({
+        packageName: target.name,
+        message: `${file}: migration name must match drizzle-kit format (NNNN_word_word.sql)`,
+      });
+    }
+
+    const content = readFileSync(join(drizzleDir, file), 'utf-8');
+    if (content.includes(DRIZZLE_TEMPLATE_COMMENT)) {
+      violations.push({
+        packageName: target.name,
+        message: `${file}: contains drizzle template comment; regenerate via drizzle-kit instead of hand-writing`,
+      });
+    }
+  }
+}
+
+const violations: Violation[] = [];
+for (const target of MIGRATION_TARGETS) checkTarget(target, violations);
+
+if (violations.length > 0) {
+  console.log(`Drizzle migration checks failed (${violations.length}):\n`);
+  for (const violation of violations) {
+    console.log(`${violation.packageName}: ${violation.message}`);
+  }
+  process.exit(1);
+}
+
+console.log('Drizzle migration checks passed.');