Brutal Theme | Markdown Symbols - The key to speaking LLM-ese

Published on Tue May 06 2025 00:00:00 GMT+0000 (Coordinated Universal Time) by Josh Krupnick

When to Use Markdown in Prompts

Use it when you want to:

LLMs were trained on massive corpora that include:

So when you use common Markdown formatting, you’re speaking the model’s native visual language.

Symbol	Markdown Use	Why It Matters to LLMs
`#`, `##`, `###`	Headings	Triggers structured thinking; segments instructions or sections clearly.
`*`, `-`, `+`	Bullets	Recognized as lists — helps the model organize thoughts and outputs.
`1.`, `2.`	Numbered lists	Supports step-by-step reasoning or procedural thinking.
`bold` or `__bold__`	Emphasis	Suggests importance or labels — model often echoes this in output.
`_italic_` or `italic`	Subtle emphasis	Often used to signal asides, tone, or nuance.
`> blockquote`	Quoting	Interpreted as citing another voice or referencing prior text.
```	Code blocks	Very strong cue: model switches to structured syntax, preserves formatting, uses technical language.
`---`	Horizontal rule	Seen as a topic or section break — triggers a shift in focus.

Symbol	Use	LLM Behavior
`[]()`	Links	Recognized in context (e.g., tutorials), but rarely “clicked” — treated as source metadata.
`![alt](image)`	Image embeds	Model recognizes this is an image placeholder — it might respond descriptively.
`\` (escape)	Escape character	Rarely changes LLM behavior unless in code contexts.
HTML inside markdown	Tables, anchors, divs	Sometimes parsed correctly, especially in documentation, but inconsistent in free text.

Symbol	Use	LLM Behavior
` ` or raw HTML escapes	Fine-tuning spacing	Typically ignored or stripped in LLM response.
Line breaks (`\n`)	Formatting	Helps readability, but model doesn’t always preserve layout unless told to.

Written by Josh Krupnick