Codex performs bad on Windows

What version of Codex is running?

0.80.0

What subscription do you have?

ChatGPT Plus

Which model were you using?

gpt-5.1-codex-max (reasoning high, summaries auto)

What platform is your computer?

Microsoft Windows NT 10.0.22631.0 x64

What terminal emulator and version are you using (if applicable)?

Windows Terminal with PowerShell 7

What issue are you seeing?

Codex on Windows always wastes my tokens to try to figure out how to edit a file or read it.

Isn't there a function calling or MCP or something whatever you name to do this directly?

Codex tries to read file using python and usually with a wrong command, like:

• Ran python - <<'PY'
  │ from pathlib import Path
  │ lines=Path(r'F:
  │ … +6 lines
  └ ParserError:
    Line |
       1 |  python - <<'PY'
         |            ~
         | Missing file specification after redirection operator.

What the fuck? What's wrong with Codex?

• Ran python -c "from pathlib import Path; path=Path(r'SOME_PATH'); lines=path.read_text(encoding='utf-8').splitlines(); print('before',
  │ … +2 lines
  └   File "<string>", line 1
        from pathlib import Path; path=Path(r'F:
    … +4 lines
    ^
    SyntaxError: unterminated string literal (detected at line 1)

And it uses the same way to edit files too by using some command like -<<PATCH, but I can't show here because I can't reproduce right now, but the bug really exists.

Codex always messes this up and takes very many tokens to do such shit simple things.

─ Worked for 26m 07s ───────────────────────────────────────────────────────────────────────────────────────────────────

• I got partway but hit some tooling/encoding snags. Changes done so far: ....

What steps can reproduce the bug?

Just simply ask Codex to edit a project and wait.

What is the expected behavior?

_No response_

Additional information

The bug doesn't exist on Linux or MacOS.