# Instrument Feature Flags

> PostHog feature flags. Free tier

**Subcategory:** PostHog  
**License:** MIT  
**Source:** https://github.com/PostHog/skills/blob/main/skills/omnibus/instrument-feature-flags/SKILL.md

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## When it is useful

Add PostHog feature flags to gate new functionality. Use after implementing features or reviewing PRs to ensure safe rollouts with feature flag controls. Also handles initial PostHog SDK setup if not yet installed.

## The Catch

PostHog feature flags. Free tier; not a trial.