Why should tools be 'backend-first'?

Backend-first tools ensure the agent receives direct context and data feedback from the execution, rather than just triggering frontend UI changes which the agent cannot 'see'.

What is a 'mode' in the PostHog AI agent context?

A mode is a way to limit and specialize the tools, prompts, and context injections applied to the agent based on a specific product area or user intent.

How do I register a new agent mode?

You need to add the mode to the AgentMode schema, regenerate the schema using hogli or pnpm, and then register the AgentModeDefinition in the mode manager registry.

Are new agent modes available to all users immediately?

No, this skill mandates that all new modes be implemented behind feature flags to ensure they are tested and rolled out safely.

PostHog Agent Mode Architect

Name: PostHog Agent Mode Architect
Author: PostHog

byPostHog

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442

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分析与监控

Guides the development and integration of specialized operational modes for PostHog's AI agent system.

This skill provides a comprehensive framework for extending PostHog's AI capabilities by creating or updating specialized agent modes. It helps developers define specific toolsets, prompts, and behaviors tailored to particular product areas like SQL analysis or product instrumentation. By following the skill's structured workflow—from schema generation and toolkit scaffolding to backend-first tool implementation and feature flagging—users can ensure that the AI agent remains context-aware, efficient, and accurately constrained to the task at hand.

主要功能

01442 GitHub stars

02JTBD-style trajectory example generation for improved agent accuracy

03Automated schema generation workflows for assistant messages

04Structured scaffolding for AgentToolkits and AgentModeDefinitions

05Best practices for backend-first tool implementation and context preservation

06Integrated feature flagging protocols for safe mode deployment

使用场景

01Creating a dedicated instrumentation agent to help users track events

02Building a specialized SQL assistant mode for advanced data querying

03Migrating frontend-centric tools to backend-first agent capabilities

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add posthog/posthog-foss implementing-agent-modes

For use in Claude.ai and ChatGPT

Download Skill