feat(codex-local): add fast mode support

packages/adapters/codex-local/src/ui/build-config.test.ts

@@ -0,0 +1,54 @@
+import { describe, expect, it } from "vitest";
+import { buildCodexLocalConfig } from "./build-config.js";
+import type { CreateConfigValues } from "@paperclipai/adapter-utils";
+
+function makeValues(overrides: Partial<CreateConfigValues> = {}): CreateConfigValues {
+  return {
+    adapterType: "codex_local",
+    cwd: "",
+    instructionsFilePath: "",
+    promptTemplate: "",
+    model: "gpt-5.4",
+    thinkingEffort: "",
+    chrome: false,
+    dangerouslySkipPermissions: true,
+    search: false,
+    fastMode: false,
+    dangerouslyBypassSandbox: true,
+    command: "",
+    args: "",
+    extraArgs: "",
+    envVars: "",
+    envBindings: {},
+    url: "",
+    bootstrapPrompt: "",
+    payloadTemplateJson: "",
+    workspaceStrategyType: "project_primary",
+    workspaceBaseRef: "",
+    workspaceBranchTemplate: "",
+    worktreeParentDir: "",
+    runtimeServicesJson: "",
+    maxTurnsPerRun: 1000,
+    heartbeatEnabled: false,
+    intervalSec: 300,
+    ...overrides,
+  };
+}
+
+describe("buildCodexLocalConfig", () => {
+  it("persists the fastMode toggle into adapter config", () => {
+    const config = buildCodexLocalConfig(
+      makeValues({
+        search: true,
+        fastMode: true,
+      }),
+    );
+
+    expect(config).toMatchObject({
+      model: "gpt-5.4",
+      search: true,
+      fastMode: true,
+      dangerouslyBypassApprovalsAndSandbox: true,
+    });
+  });
+});

packages/adapters/codex-local/src/ui/build-config.ts

@@ -85,6 +85,7 @@ export function buildCodexLocalConfig(v: CreateConfigValues): Record<string, unk
   }
   if (Object.keys(env).length > 0) ac.env = env;
   ac.search = v.search;
+  ac.fastMode = v.fastMode;
   ac.dangerouslyBypassApprovalsAndSandbox =
     typeof v.dangerouslyBypassSandbox === "boolean"
       ? v.dangerouslyBypassSandbox