fix-markdown-fences

Markdown code fences can be repaired by scanning for closing fences that incorrectly include language identifiers (like ```python) instead of plain closing markers (```). This Skill automatically detects and fixes these malformed closings, handling multiple blocks, nested blocks, and missing end-of-file closures across your docs.

When a closing fence includes a language identifier, it prevents correct markdown rendering. The Skill detects this by tracking fence state line-by-line, inserts a plain closing fence before the misclosed line, and ensures proper fence pairing so documentation renders correctly.

Yes. The Skill scans markdown files across repositories and generation workflows, applying repairs systematically. It supports batch processing through Python, Bash, and PowerShell implementations, making it suitable for preparing documentation before publishing.

Yes. The Skill handles nested blocks, cases where closing fences include language tags, and files missing closing fences at end-of-file by appending the required plain closing fence automatically.

The Skill provides reference implementations in Python, Bash, and PowerShell for cross-platform use. It works with documentation containing code blocks in Python, Bash, and PowerShell contexts.

Run this Skill as a pre-publication step to ensure all markdown fences are correctly formatted. It prevents rendering issues caused by malformed closings and is essential when documentation has been edited across multiple workflows or contributors.