Stops Python edits from leaving an IndentationError while reporting success, and makes whitespace-insensitive matches land at the file's indentation instead of writing misplaced lines.
Bug Fixes
validate_on_edit: syntax now also checks Python block indentation the way CPython's tokenizer does (tab stops at 8 and tabs as 1, both must agree), so edits that produce "unexpected indent", "unindent does not match any outer indentation level", "expected an indented block", or a TabError are rolled back and created files report the error line.
A loose match (fuzzy passes 3 and 4) now measures the indentation difference and shifts every replacement line by it; before, only the first line followed the file's indentation.
New Features
When indentation is ambiguous — tabs against spaces, different offsets on different lines, a blank first line, or a too-deep oldString whose replacement dedents past the extra depth — the edit fails with the new ambiguous_indentation code and leaves the file untouched, in any language.
Edit replies now include a one-line notice describing what the loose match ignored and whether newString was re-indented, deduplicated across identical matches in the Rust and bridge formatters.
Confidence Score: 5/5
The PR appears safe to merge; no new blocking issue was identified.
Summary
Adds Python indentation checks and shifts loose-match replacements to the file’s indentation.
Loose edits keep every replacement line at the file’s indentation.
Python edits now check block indentation as well as syntax.
Inlined function bodies fit the call site without changing string text.
No new actionable issues were identified. The current code addresses the five supplied, unnumbered previous findings.
Diagram
%%{init: {'theme': 'neutral'}}%%
flowchart TD
A[Find text] --> B{Indentation differs?}
B -->|No| E[Build edit]
B -->|Yes| C[Find string contents once]
C --> D[Shift code lines only]
D --> E
E --> F[Write and check syntax]
F --> G{Previously valid file becomes invalid?}
G -->|Yes| H[Restore original file]
G -->|No| I[Return edit result]
