github:mattjoyce/toon-format-skill · first seen 2026-10-31 · source · badge
When working with JSON data in LLM prompts (especially large arrays or tabular data), consider the token-efficient TOON (Token-Oriented Object Notation) format which reduces tokens by 30-70% while maintaining lossless JSON representation and structural validation. Use for reading/writing .toon files, converting JSONâTOON, or optimizing structured data for LLM consumption with guardrails like [N]
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