diff --git a/scripts/dw/commands/reset.ts b/scripts/dw/commands/reset.ts
index b00e86d70..dac20ed78 100644
--- a/scripts/dw/commands/reset.ts
+++ b/scripts/dw/commands/reset.ts
@@ -6,9 +6,6 @@ import { tmuxSessionName, killTmuxSession } from "../helpers/tmux.ts";
 import { removeComposeStack } from "../helpers/compose.ts";
 import { removeEnvLocalFiles, writeEnvLocalFiles } from "../helpers/env-files.ts";
 import { setupAgentWorktree } from "../helpers/setup.ts";
-import { SHARED_DIR, BRANCH_NAME_RE } from "../constants.ts";
-import { existsSync, rmSync } from "node:fs";
-import { join } from "node:path";
 import type { RegistryEntry } from "../types.ts";
 
 export async function cmdReset(): Promise<void> {
@@ -20,10 +17,7 @@ export async function cmdReset(): Promise<void> {
 	}
 	killTmuxSession(tmuxSessionName(entry.worktreeNum));
 	if (entry.branchName) deleteBranch(entry.branchName);
-	if (entry.branchName && BRANCH_NAME_RE.test(entry.branchName)) {
-		const localDir = join(SHARED_DIR, "drizzle-local", entry.branchName);
-		if (existsSync(localDir)) rmSync(localDir, { recursive: true, force: true });
-	}
+	// shared/drizzle/ is rewritten on next setupAgentWorktree; no need to clear here.
 	removeComposeStack(entry.worktreeNum);
 	removeEnvLocalFiles();
 	const cleared: RegistryEntry = {
diff --git a/scripts/dw/commands/teardown.ts b/scripts/dw/commands/teardown.ts
index 294369a73..05d50724e 100644
--- a/scripts/dw/commands/teardown.ts
+++ b/scripts/dw/commands/teardown.ts
@@ -11,9 +11,6 @@ import { tmuxSessionName, killTmuxSession } from "../helpers/tmux.ts";
 import { removeComposeStack, removeAllAutumnComposeStacks } from "../helpers/compose.ts";
 import { removeEnvLocalFiles } from "../helpers/env-files.ts";
 import { stopEmulateAndPortless } from "../helpers/emulate.ts";
-import { SHARED_DIR } from "../constants.ts";
-import { existsSync, rmSync } from "node:fs";
-import { join } from "node:path";
 import type { Registry } from "../types.ts";
 
 export async function cmdTeardown(opts: { all?: boolean }): Promise<void> {
@@ -25,15 +22,6 @@ export async function cmdTeardown(opts: { all?: boolean }): Promise<void> {
 			if (entry.branchName) deleteBranch(entry.branchName);
 			unregisterPortlessAliases(entry.worktreeNum);
 			killTmuxSession(tmuxSessionName(entry.worktreeNum));
-			if (entry.branchName) {
-				const localDir = join(
-					SHARED_DIR,
-					"drizzle-local",
-					entry.branchName,
-				);
-				if (existsSync(localDir))
-					rmSync(localDir, { recursive: true, force: true });
-			}
 		}
 		removeAllAutumnComposeStacks();
 		const next: Registry = {};
@@ -62,10 +50,6 @@ export async function cmdTeardown(opts: { all?: boolean }): Promise<void> {
 	unregisterPortlessAliases(entry.worktreeNum);
 	killTmuxSession(tmuxSessionName(entry.worktreeNum));
 	removeComposeStack(entry.worktreeNum);
-	if (entry.branchName) {
-		const localDir = join(SHARED_DIR, "drizzle-local", entry.branchName);
-		if (existsSync(localDir)) rmSync(localDir, { recursive: true, force: true });
-	}
 	delete registry[cwd];
 	saveRegistry(registry);
 	removeEnvLocalFiles();
diff --git a/scripts/dw/helpers/migration.ts b/scripts/dw/helpers/migration.ts
index 2a897bfbe..047eb07ab 100644
--- a/scripts/dw/helpers/migration.ts
+++ b/scripts/dw/helpers/migration.ts
@@ -19,7 +19,12 @@ export function generateAndApplyMigration(
 	branchName: string,
 	databaseUrl: string,
 ): void {
-	const outDir = join(SHARED_DIR, "drizzle-local", branchName);
+	// Use the worktree's own shared/drizzle/ as the migration dir (matches
+	// drizzle.config.ts out: "./drizzle"). Empty it first so the baseline
+	// generated for this fresh Neon branch isn't a diff against the canonical
+	// repo's migration history — subsequent `bun db:generate` runs then emit
+	// clean incrementals against this worktree's actual DB state.
+	const outDir = join(SHARED_DIR, "drizzle");
 	if (existsSync(outDir)) rmSync(outDir, { recursive: true, force: true });
 	mkdirSync(outDir, { recursive: true });
 
diff --git a/scripts/dw/helpers/registry.ts b/scripts/dw/helpers/registry.ts
index b37d220a4..ef085a911 100644
--- a/scripts/dw/helpers/registry.ts
+++ b/scripts/dw/helpers/registry.ts
@@ -1,6 +1,5 @@
 import { createHash } from "node:crypto";
-import { existsSync, readFileSync, writeFileSync, rmSync } from "node:fs";
-import { join } from "node:path";
+import { existsSync, readFileSync, writeFileSync } from "node:fs";
 import { log, fatal } from "./shell.ts";
 import { getWorktreeList, getCurrentWorktree } from "./git.ts";
 import { deleteBranch } from "./neon.ts";
@@ -9,7 +8,6 @@ import {
 	MAX_WORKTREE,
 	BRANCH_NAME_RE,
 	INACTIVITY_MS,
-	SHARED_DIR,
 } from "../constants.ts";
 import type { Registry, RegistryEntry } from "../types.ts";
 
@@ -83,8 +81,6 @@ export function reconcile(registry: Registry): Registry {
 	for (const o of orphaned) {
 		if (!o.branchName || !BRANCH_NAME_RE.test(o.branchName)) continue;
 		deleteBranch(o.branchName);
-		const localDir = join(SHARED_DIR, "drizzle-local", o.branchName);
-		if (existsSync(localDir)) rmSync(localDir, { recursive: true, force: true });
 	}
 	return next;
 }