/codex:rescue fails to write files — always returns a read-only sandbox error

Summary
I want Codex to make an actual file change when I ask /codex:rescue to do something that requires writing (create, edit, or delete a file). Every time, it comes back saying it can't because the sandbox is read-only — even for something as simple as creating a plain text file inside my own project folder.

Environment

• OS: Windows 11
• Codex CLI: 0.142.4
• Plugin: codex-plugin-cc 1.0.5
• Claude Code, invoking via /codex:rescue

Steps to reproduce

1. Open a project in Claude Code with the Codex plugin installed and authenticated.
2. Run /codex:rescue create a file named test.txt containing "hello" (or any task that clearly requires a write).
3. Wait for the result.

Expected
The file gets created.

Actual
Codex reports the workspace as read-only and refuses to write, every time — not occasionally.

Related
Possibly the same underlying issue as openai/codex#6428, though that one isn't specific to this plugin and I couldn't find a plugin-side issue describing this exact case.

Start at the /codex:rescue command entry point and reproduce the write request on Windows 11 with the stated plugin and Codex CLI versions. Trace how the plugin configures the sandbox for create, edit, and delete operations, and compare the behavior with openai/codex#6428. Done means a request to create test.txt in the project succeeds instead of returning a read-only error.