fix-markdown-lint

name	fix-markdown-lint
description	Fix markdown linting and prettier formatting issues in markdown files
disable-model-invocation	true

Fix Markdown Lint

Fix markdown lint errors and prettier formatting issues so CI passes.

Usage

/fix-markdown [file ...]

If no files are specified, auto-detect changed .md files:

git diff --name-only HEAD upstream/main -- '*.md'

Instructions

1. Identify errors

Run markdownlint with the repo config to see all errors:

markdownlint-cli2 --config .github/linters/.markdownlint.json <files>

Read each file that has errors before fixing.

2. Fix errors

Apply fixes for each error type:

MD013 — Line length (max 120 chars, code blocks and tables exempt):

• Break long lines at sentence boundaries
• Keep related phrases together when possible
• Do not break URLs or inline code spans

MD040 — Fenced code block language:

• Add a language identifier after the opening triple backticks
• Use text for plain text, CLI output, or pseudo-code diagrams
• Use the actual language (bash, go, json, yaml, sql, markdown) when the content is code

MD060 — Table column style:

• Add spaces around pipes in separator rows: | --- | --- | not |---|---|
• Prettier will handle full table alignment afterward

Other rules:

• Read the markdownlint rule documentation if you encounter an unfamiliar rule
• Fix according to the rule's requirements

3. Run prettier

After fixing lint errors, run prettier to normalize formatting:

npx prettier --write <files>

Prettier will align tables, normalize spacing, and fix other formatting.

4. Verify

Re-run markdownlint to confirm all errors are resolved:

markdownlint-cli2 --config .github/linters/.markdownlint.json <files>

If errors remain, fix them and repeat until clean.

Config reference

• Markdownlint config: .github/linters/.markdownlint.json
  • Line length: 120 (code blocks and tables exempt)
• Prettier: default config (no .prettierrc)
• CI runs both checks via super-linter