docs: remove 'experimental' syntax for hooks in docs (#17660)

docs/hooks/index.md

@@ -1,32 +1,9 @@
-# Gemini CLI hooks (experimental)
+# Gemini CLI hooks
 
 Hooks are scripts or programs that Gemini CLI executes at specific points in the
 agentic loop, allowing you to intercept and customize behavior without modifying
 the CLI's source code.
 
-## Availability
-
-> **Experimental Feature**: Hooks are currently enabled by default only in the
-> **Preview** and **Nightly** release channels.
-
-If you are on the Stable channel, you must explicitly enable the hooks system in
-your `settings.json`:
-
-```json
-{
-  "hooksConfig": {
-    "enabled": true
-  }
-}
-```
-
-- **[Writing hooks guide](/docs/hooks/writing-hooks)**: A tutorial on creating
-  your first hook with comprehensive examples.
-- **[Hooks reference](/docs/hooks/reference)**: The definitive technical
-  specification of I/O schemas and exit codes.
-- **[Best practices](/docs/hooks/best-practices)**: Guidelines on security,
-  performance, and debugging.
-
 ## What are hooks?
 
 Hooks run synchronously as part of the agent loop—when a hook event fires,
@@ -43,6 +20,15 @@ With hooks, you can:
 - **Optimize behavior:** Dynamically filter available tools or adjust model
   parameters.
 
+### Getting started
+
+- **[Writing hooks guide](/docs/hooks/writing-hooks)**: A tutorial on creating
+  your first hook with comprehensive examples.
+- **[Best practices](/docs/hooks/best-practices)**: Guidelines on security,
+  performance, and debugging.
+- **[Hooks reference](/docs/hooks/reference)**: The definitive technical
+  specification of I/O schemas and exit codes.
+
 ## Core concepts
 
 ### Hook events

docs/sidebar.json

@@ -86,7 +86,7 @@
         "label": "Remote subagents (experimental)",
         "slug": "docs/core/remote-agents"
       },
-      { "label": "Hooks (experimental)", "slug": "docs/hooks" },
+      { "label": "Hooks", "slug": "docs/hooks" },
       { "label": "IDE integration", "slug": "docs/ide-integration" },
       { "label": "MCP servers", "slug": "docs/tools/mcp-server" }
     ]