refactor(xai): move code_execution into plugin

docs/tools/code-execution.md

@@ -30,7 +30,6 @@ devices. Use [`exec`](/tools/exec) for that.
 
 You need an xAI API key. Any of these work:
 
-- `tools.code_execution.apiKey`
 - `XAI_API_KEY`
 - `plugins.entries.xai.config.webSearch.apiKey`
 
@@ -38,13 +37,21 @@ Example:
 
 ```json5
 {
-  tools: {
-    code_execution: {
-      enabled: true,
-      apiKey: "xai-...",
-      model: "grok-4-1-fast",
-      maxTurns: 2,
-      timeoutSeconds: 30,
+  plugins: {
+    entries: {
+      xai: {
+        config: {
+          webSearch: {
+            apiKey: "xai-...",
+          },
+          codeExecution: {
+            enabled: true,
+            model: "grok-4-1-fast",
+            maxTurns: 2,
+            timeoutSeconds: 30,
+          },
+        },
+      },
     },
   },
 }

docs/tools/index.md

@@ -55,7 +55,7 @@ These tools ship with OpenClaw and are available without installing any plugins:
 | Tool                                    | What it does                                             | Page                                    |
 | --------------------------------------- | -------------------------------------------------------- | --------------------------------------- |
 | `exec` / `process`                      | Run shell commands, manage background processes          | [Exec](/tools/exec)                     |
-| `code_execution`                        | Run sandboxed remote Python analysis with xAI            | [Code Execution](/tools/code-execution) |
+| `code_execution`                        | Run sandboxed remote Python analysis                     | [Code Execution](/tools/code-execution) |
 | `browser`                               | Control a Chromium browser (navigate, click, screenshot) | [Browser](/tools/browser)               |
 | `web_search` / `x_search` / `web_fetch` | Search the web, search X posts, fetch page content       | [Web](/tools/web)                       |
 | `read` / `write` / `edit`               | File I/O in the workspace                                |                                         |