Logs Java — Agent Skill by PostHog

From the author

PostHog logs for Java

— the description by PostHog

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://mp-staging.autogineer.com/agent-skills/posthog/logs-java/download
Unzip 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 - docs
references/start-here.md - Getting started with logs - docs
references/search.md - Search logs - docs
references/best-practices.md - Logging best practices - docs
references/troubleshooting.md - Logs troubleshooting - docs
references/link-session-replay.md - Link session replay - docs
references/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

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.

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