feature-flags-java
### PostHog Java Feature Flags
Works with
What it does
Install the PostHog Java library and integrate flag checks directly into existing application logic using the provided documentation.
Securely manage PostHog API keys using environment variables and prioritize server-side evaluation to prevent UI flickering.
Utilize available PostHog MCP tools to programmatically create, list, and update feature flags directly from your development environment.
Installation Guide
How to use feature-flags-java on Cursor
AI-first code editor with Composer
Prerequisites
Before installing skills in Cursor, ensure your development environment meets these requirements:
- ›Cursor installed and configured on your machine
- ›Node.js 16+ with npm — verify with
node --version - ›Active project directory where you want to add
feature-flags-java
Run the install command
Execute the skills CLI command in your project's root directory to begin installation:
Fetches feature-flags-java from PostHog/skills and configures it for Cursor.
Select Cursor when prompted
The CLI shows a list of agents. Use arrow keys and space to select Cursor:
Verify installation
Confirm successful installation by checking the skill directory location:
Restart Cursor to activate feature-flags-java. Access via /feature-flags-java in your agent's command palette.
Security Notice
We perform automated surface-level scans (Gen AI Scanner, Socket, Snyk) during installation. These checks detect common vulnerabilities but do not guarantee complete security. Always review skill source code and verify the publisher's reputation before production use.
Skills execute code in your environment. Always review source, verify the publisher, and test in isolation before production.
Documentation
| name | feature-flags-java |
| description | PostHog feature flags for Java applications |
| metadata | author: PostHog version: 1.9.4 |
PostHog feature flags for Java
This skill helps you add PostHog feature flags to Java applications.
Reference files
references/java.md- Java feature flags installation - docsreferences/adding-feature-flag-code.md- Adding feature flag code - docsreferences/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.
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Accelerate learning and skill development by 2x
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Improve work quality by 30-40% with less effort