---
title: "GitHub - the-teacher/active_harness: AI framework for Ruby/Rails developers"
url: https://daily.dev/posts/github---the-teacher-active-harness-ai-framework-for-ruby-rails-developers-oeapikfnu
source_url: https://github.com/the-teacher/active_harness
type: article
source: "Ruby Flow"
published: 2026-05-20T19:07:22.336Z
updated: 2026-05-20T19:07:43.845Z
tags: ["llm", "ruby", "ai-agents", "rails"]
reading_time: 10
upvotes: 0
comments: 0
language: en
---

> ## Documentation Index
> Fetch the complete documentation index at: https://daily.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# GitHub - the-teacher/active_harness: AI framework for Ruby/Rails developers

**[Ruby Flow](https://daily.dev/sources/rubyflow)** · 10 min read · 0 upvotes · 0 comments

## Summary

ActiveHarness is a Ruby gem for building AI agents in Ruby and Rails applications. It provides a DSL for defining agents with system prompts, multi-provider LLM support with automatic fallbacks (OpenAI, Anthropic, Groq, Gemini, OpenRouter), lifecycle hooks, and several higher-level constructs: Tribunals (parallel agents that produce a consensus verdict), Pipelines (sequential multi-step flows with early-stop logic), and Memory (conversation history with file-based storage). The framework integrates with Rails via generators that scaffold the app/ai/ directory structure, supports SSE streaming, and exposes execution time and token usage on every result object.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://github.com/the-teacher/active_harness>

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---

Tags: [#llm](https://daily.dev/tags/llm), [#ruby](https://daily.dev/tags/ruby), [#ai-agents](https://daily.dev/tags/ai-agents), [#rails](https://daily.dev/tags/rails)

[View this post on daily.dev](https://daily.dev/posts/github---the-teacher-active-harness-ai-framework-for-ruby-rails-developers-oeapikfnu)