Core

The @tally-evals/core package provides the essential building blocks for the entire Tally ecosystem. It ensures type safety and consistent data structures between conversation generation and evaluation.

Key Features

• Shared Types: Canonical definitions for Conversation, StepTrace, and ModelMessage.
• Configuration: A unified way to configure storage and project settings.
• Storage Adapters: Pluggable backends for saving evaluation artifacts (Local, S3, Redis).
• Codecs: Zod-based serialization for all Tally data formats.
• Message Utilities: Helpers for extracting text and tool calls from LLM messages.

Installation

pnpm add @tally-evals/core

Why use Core?

While you primarily interact with @tally-evals/tally or @tally-evals/trajectories, the @tally-evals/core package is where you'll find the type definitions and configuration helpers needed for deeper integration and custom extensions.