fix: default OpenAI personality overlay to friendly

docs/providers/openai.md

@@ -15,7 +15,7 @@ OpenAI explicitly supports subscription OAuth usage in external tools/workflows
 ## Default interaction style
 
 OpenClaw can add a small OpenAI-specific prompt overlay for both `openai/*` and
-`openai-codex/*` runs. When enabled, the overlay keeps the assistant warm,
+`openai-codex/*` runs. By default, the overlay keeps the assistant warm,
 collaborative, concise, direct, and a little more emotionally expressive
 without replacing the base OpenClaw system prompt.
 
@@ -25,8 +25,8 @@ Config key:
 
 Allowed values:
 
-- `"friendly"`: enable the OpenAI-specific overlay.
-- `"off"`: default; disable the overlay and use the base OpenClaw prompt only.
+- `"friendly"`: default; enable the OpenAI-specific overlay.
+- `"off"`: disable the overlay and use the base OpenClaw prompt only.
 
 Scope:
 
@@ -34,8 +34,8 @@ Scope:
 - Applies to `openai-codex/*` models.
 - Does not affect other providers.
 
-This behavior is off by default. Enable it explicitly if you want the OpenAI
-personality overlay:
+This behavior is on by default. Keep `"friendly"` explicitly if you want that
+to survive future local config churn:
 
 ```json5
 {
@@ -53,7 +53,7 @@ personality overlay:
 
 ### Disable the OpenAI prompt overlay
 
-If you want the unmodified base OpenClaw prompt, keep the overlay off:
+If you want the unmodified base OpenClaw prompt, set the overlay to `"off"`:
 
 ```json5
 {

extensions/openai/index.test.ts

@@ -322,9 +322,37 @@ describe("openai plugin", () => {
     );
   });
 
-  it("defaults to no OpenAI interaction-style overlay", async () => {
+  it("defaults to the friendly OpenAI interaction-style overlay", async () => {
     const { on, providers } = await registerOpenAIPluginWithHook();
 
+    expect(on).not.toHaveBeenCalledWith("before_prompt_build", expect.any(Function));
+    const openaiProvider = requireRegisteredProvider(providers, "openai");
+    expect(
+      openaiProvider.resolveSystemPromptContribution?.({
+        config: undefined,
+        agentDir: undefined,
+        workspaceDir: undefined,
+        provider: "openai",
+        modelId: "gpt-5.4",
+        promptMode: "full",
+        runtimeChannel: undefined,
+        runtimeCapabilities: undefined,
+        agentId: undefined,
+      }),
+    ).toEqual({
+      stablePrefix: OPENAI_GPT5_OUTPUT_CONTRACT,
+      sectionOverrides: {
+        interaction_style: OPENAI_FRIENDLY_PROMPT_OVERLAY,
+        execution_bias: OPENAI_GPT5_EXECUTION_BIAS,
+      },
+    });
+  });
+
+  it("supports opting out of the friendly prompt overlay via plugin config", async () => {
+    const { on, providers } = await registerOpenAIPluginWithHook({
+      pluginConfig: { personality: "off" },
+    });
+
     expect(on).not.toHaveBeenCalledWith("before_prompt_build", expect.any(Function));
     const openaiProvider = requireRegisteredProvider(providers, "openai");
     expect(
@@ -347,7 +375,7 @@ describe("openai plugin", () => {
     });
   });
 
-  it("supports opting into the friendly prompt overlay via plugin config", async () => {
+  it("supports explicitly configuring the friendly prompt overlay", async () => {
     const { on, providers } = await registerOpenAIPluginWithHook({
       pluginConfig: { personality: "friendly" },
     });

extensions/openai/openclaw.plugin.json

@@ -49,7 +49,7 @@
       "personality": {
         "type": "string",
         "enum": ["friendly", "off"],
-        "default": "off",
+        "default": "friendly",
         "description": "Controls the default OpenAI-specific personality used for OpenAI and OpenAI Codex runs."
       }
     }

extensions/openai/prompt-overlay.ts

@@ -48,7 +48,7 @@ export type OpenAIPromptOverlayMode = "friendly" | "off";
 export function resolveOpenAIPromptOverlayMode(
   pluginConfig?: Record<string, unknown>,
 ): OpenAIPromptOverlayMode {
-  return pluginConfig?.personality === "friendly" ? "friendly" : "off";
+  return pluginConfig?.personality === "off" ? "off" : "friendly";
 }
 
 export function shouldApplyOpenAIPromptOverlay(params: {