feat(codex-local): add fast mode support

2026-04-11 07:36:42 -05:00
parent 03a2cf5c8a
commit 2d8f97feb0
12 changed files with 246 additions and 56 deletions
@@ -0,0 +1,46 @@
+import { describe, expect, it } from "vitest";
+import { buildCodexExecArgs } from "./codex-args.js";
+
+describe("buildCodexExecArgs", () => {
+  it("enables Codex fast mode overrides for GPT-5.4", () => {
+    const result = buildCodexExecArgs({
+      model: "gpt-5.4",
+      search: true,
+      fastMode: true,
+    });
+
+    expect(result.fastModeRequested).toBe(true);
+    expect(result.fastModeApplied).toBe(true);
+    expect(result.fastModeIgnoredReason).toBeNull();
+    expect(result.args).toEqual([
+      "--search",
+      "exec",
+      "--json",
+      "--model",
+      "gpt-5.4",
+      "-c",
+      'service_tier="fast"',
+      "-c",
+      "features.fast_mode=true",
+      "-",
+    ]);
+  });
+
+  it("ignores fast mode for unsupported models", () => {
+    const result = buildCodexExecArgs({
+      model: "gpt-5.3-codex",
+      fastMode: true,
+    });
+
+    expect(result.fastModeRequested).toBe(true);
+    expect(result.fastModeApplied).toBe(false);
+    expect(result.fastModeIgnoredReason).toContain("currently only supported on gpt-5.4");
+    expect(result.args).toEqual([
+      "exec",
+      "--json",
+      "--model",
+      "gpt-5.3-codex",
+      "-",
+    ]);
+  });
+});