AutoGineer summary
Written by AutoGineer from the skill’s own files, not by the author
This skill provides guidance and reference materials for configuring Java applications to export logs to PostHog. It emphasizes the use of the OpenTelemetry protocol and structured logging practices to ensure logs are actionable and queryable. The skill covers installation, best practices for log structure, and methods for debugging and searching logs within the PostHog ecosystem.
What it does
- Provides instructions for setting up OpenTelemetry log exporters in Java.
- Outlines best practices for structured logging to improve queryability.
- Explains how to correlate logs with session replays and trace data.
- Offers guidance on troubleshooting log ingestion issues.
- Details how to use MCP tools to search and analyze logs directly from an IDE.
When to use it
- When you need to centralize logs from Java services into PostHog.
- When you want to transition from plain text logging to structured, wide events.
- When you need to debug production issues by correlating logs with user sessions or traces.
- When you are setting up observability for a new or existing Java application.
Advantages
- Enables unified visibility across logs, product analytics, and session replays.
- Promotes the use of standard OpenTelemetry protocols for vendor-neutral ingestion.
- Encourages structured logging patterns that reduce noise and improve searchability.
- Supports direct log querying and analysis within AI-enabled development environments.
Usage examples
- “How do I configure my Java application to send logs to PostHog?”
- The agent provides steps to configure an OTLP exporter in your Java application, pointing it to the PostHog ingest endpoint using environment variables.
- “Show me all error logs from the payments service in the last hour.”
- The agent uses the logs-query MCP tool to filter and display relevant error logs from the specified service.
Install
Download the skill as a ZIP:
https://autogineer.com/agent-skills/posthog/logs-java/downloadUnzip it into the cross-client skills folder of your project:
mkdir -p .agents/skills && unzip logs-java.zip -d .agents/skills
Documentation by PostHog
PostHog logs for Java
This skill helps you add PostHog log ingestion to Java applications.
Reference files
references/java.md- Java logs installation - docsreferences/start-here.md- Getting started with logs - docsreferences/search.md- Search logs - docsreferences/best-practices.md- Logging best practices - docsreferences/troubleshooting.md- Logs troubleshooting - docsreferences/link-session-replay.md- Link session replay - docsreferences/debug-logs-mcp.md- Debug logs with mcp - docs
Consult the documentation for API details and framework-specific patterns.
Key principles
Environment variables: Always use environment variables for PostHog keys and OpenTelemetry endpoints. Never hardcode them.
Minimal changes: Add log export alongside existing logging. Don't replace or restructure existing logging code.
OpenTelemetry: PostHog logs use the OpenTelemetry protocol. Configure an OTLP exporter pointed at PostHog's ingest endpoint.
Structured logging: Prefer structured log formats with key-value properties over plain text messages.
Framework guidelines
No specific framework guidelines.
Files
- ATTRIBUTION.mdAdded by AutoGineer927 B
- LICENSELicence file added by AutoGineer1.0 KiB
- SKILL.md1.3 KiB
- references/best-practices.md19.6 KiB
- references/debug-logs-mcp.md2.2 KiB
- references/java.md3.9 KiB
- references/link-session-replay.md4.9 KiB
- references/search.md2.5 KiB
- references/start-here.md2.4 KiB
- references/troubleshooting.md3.5 KiB
references/start-here.md
Getting started with logs - Docs
New to logging? Read Why you need logs first for a primer on what logs show you that nothing else does.
Install and configure logging
PostHog logs is a powerful logging solution that works with the OpenTelemetry Protocol (OTLP). You don't need any vendor specific SDKs – just use standard OpenTelemetry libraries.
Install and configure your logging client to send logs to PostHog:
Use the HTTP endpoint:
https://us.i.posthog.com/i/v1/logsAuthenticate with your project token (the same token used for events/exceptions)
Include the token in the Authorization header or as a
?token=query parameterUse the standard OTLP log format
Search and analyze your logs
Once your logs are flowing into PostHog, you can:
Search through logs using multiple search tokens, negative filters, and exact phrase matching
Filter by time ranges to find specific events
Correlate logs with events from your PostHog analytics
Navigate to the Logs section in your PostHog dashboard to start exploring your log data.
Troubleshooting
Common issues you might encounter when setting up logging:
Authentication errors - Make sure you're using your correct project token
Connection issues - Verify the HTTP endpoint is accessible
Log format problems - Ensure you're using the standard OTLP log format
Logging best practices
Learn what to log, how to structure your logs, and the patterns that make logs actually useful in production – including wide events, strategic sampling, and adding business context.
1/4
Install and configure logging RequiredSearch and analyze your logs RequiredTroubleshooting RecommendedLogging best practices Recommended
Install and configure logging
Required
Community questions
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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.
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/logs/skills/java · 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 or PostHog.
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Download ZIP
The ZIP holds the skill’s files, its licence files and an ATTRIBUTION.md. Download logs-java.zip