Tauq - Token-Efficient Data Notation

44% fewer tokens than JSON overall. 11% more efficient than TOON. Verified with tiktoken.

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What is Tauq?

Tauq (τq) is two things:

1. Tauq Notation (.tqn): A schema-driven data format that achieves 44-54% fewer tokens than JSON (verified with tiktoken cl100k_base).
2. Tauq Query (.tqq): A pre-processor with shell integration for data transformations.

Built for the AI era where every token counts.

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Benchmark (1000 Records)

Format	Tokens	vs JSON
JSON (minified)	24,005	baseline
TOON	12,002	-50.0%
Tauq	11,012	-54.1%

All counts verified with tiktoken cl100k_base (GPT-4/Claude tokenizer).

Overall (10 datasets, 55,647 tokens): Tauq saves 44.2% vs JSON, 10.8% vs TOON. See benchmarks/ for full results.

Quick Example

JSON:

[{"id": 1, "name": "Alice"}, {"id": 2, "name": "Bob"}]

Tauq:

!def User id name
1 Alice
2 Bob

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Features

Token-Optimal

• 44-54% fewer tokens than JSON (verified benchmarks)
• 11% more efficient than TOON overall
• Space delimiters tokenize better than commas

True Streaming

• StreamingParser iterator API
• Process records one at a time
• No count required (unlike TOON's [N])

Schema-Driven

• Define data shapes with !def
• Switch schemas with !use
• Nested types and typed arrays

🔧 Programmable

• Tauq Query for data transformations
• Unix pipe model
• Polyglot support (Python, Rhai, JavaScript)

🛠️ Production-Ready CLI

• tauq build - Parse to JSON
• tauq format - JSON → Tauq
• tauq minify - Compress to one line
• tauq exec - Run Tauq Query pipelines
• tauq validate - Check syntax

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Quick Start

Installation

# Install the tauq package
cargo install tauq

Language Bindings

Tauq is available for your favorite languages:

• Python: pip install tauq
• JavaScript: npm install tauq
• Go: go get github.com/epistates/tauq
• Rust: Add tauq = "0.1" to your Cargo.toml

Hello World

Create config.tqn:

app_name "MyService"
version "1.0.0"
port 8080
debug true
features [api websockets metrics]

Parse to JSON:

$ tauq build config.tqn --pretty
{
  "app_name": "MyService",
  "version": "1.0.0",
  "port": 8080,
  "debug": true,
  "features": ["api", "websockets", "metrics"]
}

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Syntax Guide

Simple Values

name "Alice"
age 30
active true
score 99.5
missing null
role admin  # Barewords don't need quotes

Arrays

tags [web api backend]
ids [1 2 3 4 5]
mixed [1 "two" true null]

Tabular Data (The Killer Feature)

!def User id name email role

1 Alice "alice@example.com" admin
2 Bob "bob@example.com" user
3 Carol "carol@example.com" user

Schema Block

Define schemas upfront with --- to separate from data:

!def User id name role
---
users [
  !use User
  1 Alice admin
  2 Bob user
]

The --- separator clears the implicit schema scope, allowing structured key-value data that uses !use inside arrays.

Nested Types

!def Address street city
!def User id name addr:Address

1 Alice { "123 Main" "NYC" }
2 Bob { "456 Oak" "LA" }

Lists of Objects

!def Employee name role
!def Department name budget employees:[Employee]

Engineering 1000000 [
    Alice "Principal Engineer"
    Bob "Senior Engineer"
]

Minified Syntax

!def U id name; 1 Alice; 2 Bob

All on one line for maximum compression!

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Examples

We have provided a comprehensive set of examples in the examples/ directory:

• Basics: Simple configuration and primitive types.
• Schemas: Typed schemas and nested types.
• Modularity: Multi-file imports and modular configurations.
• Real World: Production configurations like Kubernetes deployments.
• Queries: ETL pipelines and data generation with TauqQ.
• Minified: Compact single-line syntax examples.

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CLI Usage

Build: Tauq → JSON

# To stdout
tauq build data.tqn

# To file with pretty formatting
tauq build data.tqn -o data.json --pretty

# From stdin
cat data.tqn | tauq build -

Format: JSON → Tauq

The formatter intelligently detects arrays of uniform objects and creates schemas automatically:

# Convert JSON to Tauq (auto-generates schemas for nested arrays)
tauq format data.json -o data.tqn

# From stdin
echo '{"users": [{"id": 1, "name": "Alice"}, {"id": 2, "name": "Bob"}]}' | tauq format -
# Output:
# !def User id name
# ---
# users [
#   !use User
#   1 Alice
#   2 Bob
# ]

Execute Tauq Query

# Run data transformations
tauq exec pipeline.tqq -o output.json

# Run in SAFE MODE (disable shell execution)
tauq exec pipeline.tqq --safe

Minify

# Compress to single line
tauq minify data.tqn -o data.min.tqn

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Contributing

Tauq is in active development. Contributions welcome!

Areas of interest:

• Parser optimizations
• Error message improvements
• Language bindings (Python, JS, Go)
• Documentation
• Real-world use cases

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License

MIT

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Tauq (τq) - Stop wasting tokens on JSON. Start using the future. 🚀