docs: refresh faq defaults

docs/faq.md

@@ -8,7 +8,7 @@ In 2021, OpenAI released Codex, an AI system designed to generate code from natu
 
 ### Which models are supported?
 
-We recommend using Codex with GPT-5 Codex, our best coding model. The default reasoning level is medium, and you can upgrade to high for complex tasks with the `/model` command.
+We recommend using Codex with GPT-5 Codex, our best coding model. Reasoning effort is unset by default, so the provider applies its own default; set `/reasoning high` when you need extra depth.
 
 You can also use older models by using API-based auth and launching codex with the `--model` flag.
 
@@ -22,7 +22,7 @@ Yes. [`codex exec`](./exec.md) runs Codex in non-interactive mode with streaming
 
 ### How do I stop Codex from editing my files?
 
-By default, Codex can modify files in your current working directory (Auto mode). To prevent edits, run `codex` in read-only mode with the CLI flag `--sandbox read-only`. Alternatively, you can change the approval level mid-conversation with `/approvals`.
+Codex starts in read-only sandbox mode with `AskForApproval::OnRequest`, so it asks before modifying your workspace. To allow automatic writes, launch with `--sandbox workspace-write` or change approvals mid-conversation with `/approvals`.
 
 ### How do I connect Codex to MCP servers?
 

docs/install.md

@@ -4,7 +4,7 @@
 
 | Requirement                 | Details                                                         |
 | --------------------------- | --------------------------------------------------------------- |
-| Operating systems           | macOS 12+, Ubuntu 20.04+/Debian 10+, or Windows 11 (native or via WSL2) |
+| Operating systems           | macOS 12+, Ubuntu 20.04+/Debian 10+, or Windows 11 **via WSL2** |
 | Git (optional, recommended) | 2.23+ for built-in PR helpers                                   |
 | RAM                         | 4-GB minimum (8-GB recommended)                                 |
 
@@ -33,10 +33,8 @@ cargo run --bin codex -- "explain this codebase to me"
 
 # After making changes, ensure the code is clean.
 cargo fmt -- --config imports_granularity=Item
-cargo clippy --all-features --tests
-# or use `just clippy`
+cargo clippy --tests
 
 # Run the tests.
 cargo test
-# or use `just test`
 ```