triggerdotdev · ericallam · Aug 13, 2025 · Aug 13, 2025
diff --git a/.changeset/afraid-waves-divide.md b/.changeset/afraid-waves-divide.md
@@ -0,0 +1,5 @@
+---
+"trigger.dev": patch
+---
+
+Make the default of legacyDevProcessCwdBehaviour true instead of false (prevents breaking prismaExtension)
diff --git a/packages/cli-v3/src/dev/devSupervisor.ts b/packages/cli-v3/src/dev/devSupervisor.ts
@@ -358,10 +358,12 @@ class DevSupervisor implements WorkerRuntime {
          config: this.options.config,
        });

-        const cwd =
-          this.options.config.legacyDevProcessCwdBehaviour === true
-            ? undefined
-            : worker.build.outputPath;
+        const legacyDevProcessCwdBehaviour =
+          typeof this.options.config.legacyDevProcessCwdBehaviour === "boolean"
+            ? this.options.config.legacyDevProcessCwdBehaviour
+            : true;
+
+        const cwd = legacyDevProcessCwdBehaviour === true ? undefined : worker.build.outputPath;

        //new run
        runController = new DevRunController({

diff --git a/packages/core/src/v3/config.ts b/packages/core/src/v3/config.ts
@@ -280,10 +280,10 @@ export type TriggerConfig = {
  processKeepAlive?: ProcessKeepAlive;

  /**
-   * @default false
+   * @default true
   * @description If set to true when running the dev CLI, the current working directory will be set to where the command is run from.
   *
-   * The new default (when this flag isn't passed) is to set the current working directory to the build directory.
+   * Setting this to `false` will set the current working directory to the build directory.
   * This more closely matches the behavior of the CLI when running in production and is highly recommended.
   *
   * This impacts the value of process.cwd() in your task code.