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Feature Flags Go

PostHogOfficialCreated by PostHog

  • Skill
  • Tool integration
  • Data and AI
  • MIT
  • No issues found
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From the author

PostHog feature flags for Go applications
— the description by PostHog

AutoGineer summary

Written by AutoGineer from the skill’s own files, not by the author

This skill provides guidance and best practices for implementing PostHog feature flags within Go applications. It covers the core principles of flag management, including the use of environment variables for security, server-side evaluation for performance, and strategies for maintaining clean code when integrating flags. The skill also highlights how to leverage PostHog MCP tools to manage flag lifecycles directly from an AI agent interface.

What it does

  • Provides patterns for implementing PostHog feature flags in Go code.
  • Outlines best practices for flag naming and organization.
  • Recommends server-side evaluation to prevent UI flicker.
  • Guides the use of environment variables for secure API key management.
  • Supports integration with PostHog MCP tools for programmatic flag management.

When to use it

  • When you need to perform feature rollouts or A/B testing in a Go backend.
  • When you want to manage feature flags programmatically via an AI agent.
  • When you need to ensure consistent flag behavior across your application.
  • When you are looking for architectural best practices for feature flag implementation.

Advantages

  • Promotes secure configuration through environment variables.
  • Improves application performance by favoring server-side evaluation.
  • Reduces code clutter by encouraging centralized flag logic.
  • Enables automated flag management via MCP tool integration.

Usage examples

“How do I implement a boolean feature flag in my Go service using PostHog?”
The agent provides a code pattern for checking a feature flag status in Go, emphasizing the use of environment variables for the PostHog key and suggesting a centralized wrapper function.
“Can you help me update a feature flag status using the PostHog MCP tools?”
The agent checks for a connected PostHog MCP server and uses the available tools to list or update the specified feature flag directly.

Install

  1. Download the skill as a ZIP:

    https://mp-staging.autogineer.com/agent-skills/posthog/feature-flags-go/download

  2. Unzip it into the cross-client skills folder of your project:

    mkdir -p .agents/skills && unzip feature-flags-go.zip -d .agents/skills

Documentation by PostHog

PostHog feature flags for Go

This skill helps you add PostHog feature flags to Go applications.

Reference files

  • references/go.md - Go feature flags installation - docs

  • references/adding-feature-flag-code.md - Adding feature flag code - docs

  • references/best-practices.md - Feature flag best practices - docs

Consult the documentation for API details and framework-specific patterns.

Key principles

  • Environment variables: Always use environment variables for PostHog keys. Never hardcode them.

  • Minimal changes: Add feature flag code alongside existing logic. Don't replace or restructure existing code.

  • Boolean flags first: Default to boolean flag checks unless the user specifically asks for multivariate flags.

  • Server-side when possible: Prefer server-side flag evaluation to avoid UI flicker.

PostHog MCP tools

Check if a PostHog MCP server is connected. If available, look for tools related to feature flag management (creating, listing, updating, deleting flags). Use these tools to manage flags directly in PostHog rather than requiring the user to do it manually in the dashboard.

Framework guidelines

No specific framework guidelines.

Files

ATTRIBUTION.md

Attribution

This folder is an unmodified copy of the Agent Skill "feature-flags-go", distributed by AutoGineer (https://autogineer.com/agent-skills).

The skill's own files are unmodified copies. AutoGineer is not affiliated with or endorsed by the author or the publisher.

Files added by AutoGineer

  • ATTRIBUTION.md: this file, written by AutoGineer

  • LICENSE: copied from LICENSE

Requirements and compatibility

Works with: Claude Code, Claude apps, OpenAI Codex, GitHub Copilot, Cursor, Gemini CLI, Kiro, OpenCode, Goose, Amp, Roo Code, JetBrains Junie, Factory Droid, Devin (ex-Windsurf), Mistral Vibe, OpenHands, Letta

“Works with” means the tool reads the open Agent Skills format; a skill written for one tool may use features others lack.

Needs: Needs an MCP server

Security

No issues found by our static scan· No issues found

A static scan is not a guarantee. Skills are third-party content: review a skill before you let an agent use it.

Attribution and licence

Created by
PostHog
Publisher
PostHog (Official)
Source
PostHog/skills · skills/posthog/feature-flags/skills/go · commit a5d30e7
Licence
MIT License (redistribution allowed)
  • LICENSE (added by AutoGineer from LICENSE)
  • ATTRIBUTION.md (written by AutoGineer)
Synced
Also distributed in
PostHog/skills

AutoGineer is not affiliated with or endorsed by PostHog.

Download ZIP

The ZIP holds the skill’s files, its licence files and an ATTRIBUTION.md. Download feature-flags-go.zip