ada-windows-file-editing

After a patch inserts LF lines into a CRLF file, normalize with a Python one-liner that converts all line endings back to CRLF, then confirm git diff --stat returns to a reasonable line count. For multi-line replacements, use single-line anchors or a Python script that joins old/new blocks with \r\n and asserts each replacement count equals one.

Multi-line old_string matching is unreliable on CRLF files because fuzzy matching does not normalize line endings. Remove trailing newlines from old_string, match a single unique line instead of a whole block, or use a Python script with explicit \r\n-joined strings.

MSYS translates POSIX paths before passing them to native Windows programs, so -o /tmp/x becomes C:\tmp\x and -o /c/tmp/x becomes the nested C:\c\tmp\x. Pass Windows-style paths with forward slashes like "C:/tmp/x", which bypass translation, and ls the result to confirm the actual location.

Windows filesystems are case-insensitive, so a runtime directory named media merges with a source directory named Media, potentially exposing source code through static file serving. Rename the runtime directory default (for example media-store), clean up using the source directory's actual casing, and add a regression test asserting the paths differ.

On Chinese Windows, dotnet and MSBuild output is GBK (cp936) encoded, so decoding as UTF-8 produces mojibake and string assertions misfire. Decode subprocess output with encoding="gbk" and assert on localized counters like "失败: 0" plus the process exit code rather than English phrases.

It does not cover .NET build-gate verification, calling PowerShell from bash, browser-based WASM deployment checks, or Hermes configuration operations; those route to dedicated skills. Use it specifically for editing and verifying files through the Windows git-bash/MSYS toolchain.