Lightweight grading toolkit for environment-based tasks.
Project description
Harbor Rewardkit
The Harbor Rewardkit is a lightweight package to define and run verifiers. Rewardkit is designed to be used with the Harbor task format but you can use it on its own.
Installation
uv tool install harbor-rewardkit
Example: Programmatic criteria
# tests/check.py
from rewardkit import criteria
criteria.file_exists("output.txt")
criteria.file_contains("output.txt", "hello")
Example: LLM judge
# tests/quality.toml
[judge]
judge = "anthropic/claude-sonnet-4-6"
files = ["/app/main.py"]
[[criterion]]
description = "Is the code correct?"
type = "binary"
Usage
Add rewardkit to your test.sh file:
# tests/test.sh
uvx harbor-rewardkit@0.1 /tests
See the documentation and a full working example.
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