feature-flags-ruby

Enable PostHog feature flag evaluation in Ruby applications.

58|5|Updated Jan 19, 2026
One-click install
npx skills add https://github.com/PostHog/skills --skill feature-flags-ruby
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: feature-flags-ruby
Source: https://github.com/PostHog/skills/tree/main/skills/posthog/feature-flags/skills/ruby
Command: npx skills add https://github.com/PostHog/skills --skill feature-flags-ruby

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

PostHog feature flags for Ruby applications enable you to implement and manage feature rollouts without code changes, reducing risk and speeding iterated releases.

Core Features & Use Cases

  • Boolean feature flag evaluation in Ruby apps
  • Multivariate flag support and payload retrieval
  • Include feature flag information in events and metrics
  • Override server properties during flag evaluation
  • Clear integration guidance for gem setup and environment handling

Quick Start

Install the posthog-ruby gem, initialize the client with your project token, and begin evaluating flags in your Ruby app.

Frequently Asked Questions about feature-flags-ruby

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I evaluate PostHog feature flags in a Ruby application?

Retrieve multivariate flag payloads and boolean values in Ruby by initializing the posthog-ruby client and evaluating flags using your project token. This enables dynamic feature rollouts and payload retrieval without deploying new code.

Can I override server properties during feature flag evaluation in Ruby?

Yes, you can override server properties during feature flag evaluation in Ruby. The integration allows passing property overrides to the PostHog client, ensuring accurate flag evaluation tailored to specific user contexts or service environments.

Does the PostHog Ruby gem support multivariate feature flags?

Yes, the posthog-ruby gem supports multivariate feature flags alongside boolean flags. You can retrieve payloads and evaluate multivariate variations directly within your Ruby services to manage complex feature rollouts and dynamic configurations.

How do I include feature flag information in PostHog events from Ruby?

Include feature flag information in events by integrating flag evaluation with event capture in the posthog-ruby gem. This attaches active flag data to your metrics and events for comprehensive server-side tracking and analytics.

What is needed to set up PostHog feature flags for Ruby services?

Setting up PostHog feature flags for Ruby requires installing the posthog-ruby gem, initializing the client with a project token, and configuring environment handling. The integration provides guidance for proper setup, testing, and resource cleanup.