Stryx

Stryx is a typed configuration compiler and experiment manager for Machine Learning. It provides a lightweight, composable approach to experiment tracking and configuration, using Pydantic for validation and YAML for persistence.

Key Features

• Type-First: Configurations are defined as Pydantic models, providing IDE support and validation.
• Configs as Source: Experiment configurations are compiled into static YAML "configs" that include metadata and lineage.
• Minimal Surface: A single decorator (@stryx.cli) adds powerful CLI capabilities to any script.
• Reproducibility: Defaults are code-driven, overrides are explicit, and every run is recorded with a manifest (git state, logs, absolute paths).
• Lifecycle Management: Automatic recording of status, results, and system metadata for every execution.

Installation

pip install stryx

Quick Start

Define your configuration schema and decorate your entry point:

# train.py
from pydantic import BaseModel
import stryx

class Config(BaseModel):
    lr: float = 1e-4
    epochs: int = 10

@stryx.cli(schema=Config)
def main(cfg: Config):
    print(f"Training with lr={cfg.lr}, epochs={cfg.epochs}")

if __name__ == "__main__":
    main()

CLI Usage

Your script now has a structured CLI.

1. Running Experiments (run)

Execute an experiment. If you provide overrides, Stryx automatically creates a "scratch" config to track the variant.

# Run with defaults
python train.py run

# Run with overrides (creates a scratch config)
python train.py run lr=1e-3 epochs=50

# Run a specific named config
python train.py run my_exp

2. Config Management (configs)

Manage your experiment templates (recipes).

# Initialize a new config from defaults
python train.py configs init my_exp lr=1e-3

# Fork an existing config
python train.py configs fork my_exp better_exp lr=2e-4

# List all saved configs
python train.py configs list

# Inspect a config with source annotations
python train.py configs show my_exp

# Print the JSON schema for VS Code validation
python train.py configs schema --json

3. Run Management (runs)

Inspect and compare execution history.

# List all runs
python train.py runs list

# Show detailed info for a specific run
python train.py runs show run_20260101_120000

# Diff two runs to see what changed
python train.py runs diff run_A run_B

CLI Reference

Top-level Commands

Configs Subcommands (configs ...)

Runs Subcommands (runs ...)

Global Options

• --runs-dir: Override directory for run logs and manifests (default: runs/).
• --configs-dir: Override directory for config storage (default: configs/).