---
name: ms-file-write
description: Use this skill when writing any file.
disable-model-invocation: false
---

# ms-file-write

Write files so the write is provable and reversible.

## Rules

1. Write to a temp file and rename for atomic replacement of an existing file.
2. Verify the write: re-read or checksum before claiming success.
3. Never overwrite a file that carries identity or history (seat records,
   run records, logs). They are append-only or write-once for a reason.
4. No secrets in written files. Ever.
5. Match the file's existing style. Do not reformat regions you did not touch.