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toon-format/toon

toon

🎒 Token-Oriented Object Notation (TOON) – JSON for LLM prompts at half the tokens. Spec, benchmarks & TypeScript implementation.

View on GitHub↗Upstream toon-format/toon↗

Builder

toon-format

toon-format

toon-format • individual

Stars

24,354

Using upstream star count

Forks

1,080

Using upstream fork count

Open Issues

0

Activity Score

0/100

0 commits in 30d

Created

Oct 22, 2025

Project creation date

README Summary

[![CI](https://github.com/toon-format/toon/actions/workflows/ci.yml/badge.svg)](https://github.com/toon-format/toon/actions) [![npm version](https://img.shields.io/npm/v/@toon-format/toon.svg)](https://www.npmjs.com/package/@toon-format/toon) [![SPEC v1.3](https://img.shields.io/badge/spec-v1.3-lightgray)](https://github.com/toon-format/spec) [![npm downloads (total)](https://img.shields.io/npm/dt/@toon-format/toon.svg)](https://www.npmjs.com/package/@toon-format/toon) [![License: MIT](https://i

Community Evaluation

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AI Dev Skills

Unmapped

Data SerializationLanguage Model EfficiencyLLM Cost OptimizationPrompt EngineeringToken Optimization

Tags

Data SerializationLanguage Model EfficiencyLLM Cost OptimizationPrompt EngineeringToken OptimizationAnthropic / ClaudeBenchmarkingC++CLI ToolCheat SheetClaudeCourseEvalsForkedGame DevGoogle AIJavaScriptLarge Language ModelsOpenAIPythonRustStructured Output

Taxonomy

AI Trends

Prompt EngineeringLLM Cost OptimizationEfficient AI Systems

category

Foundation ModelsAI AgentsEvals & BenchmarkingDev Tools & AutomationCloud & PlatformsLearning ResourcesIndustry: Gaming

Deployment Context

Cloud APISelf-hostedBrowser/WASMServerless

Industries

Developer Tools

Modalities

Text

Skill Areas

Prompt EngineeringToken OptimizationLanguage Model EfficiencyData SerializationLLM Cost Optimization

tag

Anthropic / ClaudeBenchmarkingC++CLI ToolCheat SheetClaudeCourseEvalsForkedGame DevGoogle AIJavaScriptLarge Language ModelsOpenAIPythonRustStructured Output

Use Cases

LLM Prompt OptimizationAPI Cost ReductionStructured Data Serialization for AIToken-Efficient Data Exchange

Recent Activity

Updated 7 months ago

7 Days

0

30 Days

0

90 Days

0

Quality

prototype
Quality
medium
Maturity
prototype

Categories

Evals & BenchmarkingPrimaryDev Tools & AutomationCloud & PlatformsLearning ResourcesIndustry: GamingFoundation ModelsAI AgentsOther AI / ML

PM Skills

Data & EvaluationDeveloper Platform

Languages

TypeScript100.0%

Timeline

Project created
Oct 22, 2025
Forked
Nov 4, 2025
Your last push
7 months ago
Upstream last push
17 days ago
Tracked since
Nov 4, 2025

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