refactor(providers): share xai and replay helpers

src/plugins/provider-replay-helpers.test.ts

@@ -0,0 +1,27 @@
+import { describe, expect, it } from "vitest";
+import {
+  buildOpenAICompatibleReplayPolicy,
+  buildStrictAnthropicReplayPolicy,
+} from "./provider-replay-helpers.js";
+
+describe("provider replay helpers", () => {
+  it("builds strict openai-completions replay policy", () => {
+    expect(buildOpenAICompatibleReplayPolicy("openai-completions")).toMatchObject({
+      sanitizeToolCallIds: true,
+      toolCallIdMode: "strict",
+      applyAssistantFirstOrderingFix: true,
+      validateGeminiTurns: true,
+      validateAnthropicTurns: true,
+    });
+  });
+
+  it("builds strict anthropic replay policy", () => {
+    expect(buildStrictAnthropicReplayPolicy({ dropThinkingBlocks: true })).toMatchObject({
+      sanitizeMode: "full",
+      preserveSignatures: true,
+      repairToolUseResultPairing: true,
+      allowSyntheticToolResults: true,
+      dropThinkingBlocks: true,
+    });
+  });
+});

src/plugins/provider-replay-helpers.ts

@@ -0,0 +1,45 @@
+import type { ProviderReplayPolicy } from "./types.js";
+
+export function buildOpenAICompatibleReplayPolicy(
+  modelApi: string | null | undefined,
+): ProviderReplayPolicy | undefined {
+  if (
+    modelApi !== "openai-completions" &&
+    modelApi !== "openai-responses" &&
+    modelApi !== "openai-codex-responses" &&
+    modelApi !== "azure-openai-responses"
+  ) {
+    return undefined;
+  }
+
+  return {
+    sanitizeToolCallIds: true,
+    toolCallIdMode: "strict",
+    ...(modelApi === "openai-completions"
+      ? {
+          applyAssistantFirstOrderingFix: true,
+          validateGeminiTurns: true,
+          validateAnthropicTurns: true,
+        }
+      : {
+          applyAssistantFirstOrderingFix: false,
+          validateGeminiTurns: false,
+          validateAnthropicTurns: false,
+        }),
+  };
+}
+
+export function buildStrictAnthropicReplayPolicy(
+  options: { dropThinkingBlocks?: boolean } = {},
+): ProviderReplayPolicy {
+  return {
+    sanitizeMode: "full",
+    sanitizeToolCallIds: true,
+    toolCallIdMode: "strict",
+    preserveSignatures: true,
+    repairToolUseResultPairing: true,
+    validateAnthropicTurns: true,
+    allowSyntheticToolResults: true,
+    ...(options.dropThinkingBlocks ? { dropThinkingBlocks: true } : {}),
+  };
+}