LLMON: An LLM-native Markup Language to Leverage Structure and Semantics at the LLM Interface
Textual Large Language Models (LLMs) provide a simple and familiar interface: a string of text is used for both input and output. However, the information conveyed to an LLM often has a richer structure and semantics, which is not conveyed in a string. For example, most prompts contain both instructions ("Summarize this paper into a paragraph") and data (the paper to summarize), but these are usually not distinguished when passed to the model. This can lead to model confusion and security risks, such as prompt injection attacks. This work addresses this shortcoming by introducing an LLM-native mark-up language, LLMON (LLM Object Notation, pronounced "Lemon"), that enables the structure an...
| Authors | Michael Hind, Basel Shbita, Bo Wu et al. |
|---|---|
| Primary category | cs.SE |
| Published | 23 March 2026 |
| Last updated at source | 15 October 2026 |
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