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Independent project, not affiliated with Anthropic
aj-geddes avatar

Feature Flag System

aj-geddes/useful-ai-prompts
418 installs317 stars
Summary

This implements a complete feature flag system for controlling rollouts, A/B tests, and kill switches. You get flag evaluation with rules based on user attributes, percentages, and time windows, plus variant support for experiments. The references include a TypeScript service, React hooks, analytics integration, and even an admin UI. Honestly, this is the kind of thing you'd normally reach for LaunchDarkly or Split for, but if you need flags without the SaaS dependency or want full control over the data, this gives you a solid foundation. Just don't forget the cleanup part, abandoned flags pile up fast.

Install to Claude Code

npx -y skills add aj-geddes/useful-ai-prompts --skill feature-flag-system --agent claude-code

Installs into .claude/skills of the current project.

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Your agent targets a perfect 10 Code Health score. Deterministic. Every commit.
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belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
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create and run specialised agents in minutes
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Plug Mailtrap into your AI workflow and let it handle the email.
Connect Mailtrap MCP →
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Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →
Capacitor - Shared memory for your team’s coding agents.
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Make coding agent sessions - Searchable, Shareable, Vendor-neutral & Scored.
Try For Free →
CodeScene MCP ServerCodeScene MCP Server
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Your agent targets a perfect 10 Code Health score. Deterministic. Every commit.
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belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
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Files
SKILL.md

Select a file.

Featured
CodeRabbit
CodeRabbit
AI writes the code. CodeRabbit catches the slop.
Try For Free →
inference shell
inference shell
create and run specialised agents in minutes
build now →
MCP-ready Email SendingMCP-ready Email Sending
MCP-ready Email Sending
Plug Mailtrap into your AI workflow and let it handle the email.
Connect Mailtrap MCP →
Make your agent a DeFi expert
Make your agent a DeFi expert
Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →
Capacitor - Shared memory for your team’s coding agents.
Capacitor - Shared memory for your team’s coding agents.
Make coding agent sessions - Searchable, Shareable, Vendor-neutral & Scored.
Try For Free →
CodeScene MCP ServerCodeScene MCP Server
CodeScene MCP Server
Your agent targets a perfect 10 Code Health score. Deterministic. Every commit.
Try For Free →
Give your AI the whole web as clean markdownGive your AI the whole web as clean markdown
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Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →
belt - the only tool your agent needs
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belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →
Categories
Testing & QAAI & Agent Building
First SeenJun 3, 2026
View on GitHub

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