prompt-engineer

Subagent "prompt-engineer" from PostHog/posthog: Use this agent when you need to create, refine, or optimize prompts for LLMs.

Template by PostHog

IndexedNOASSERTION★ 40,411

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Install

Works with Claude Code. Read the repository before you give any tool access to your data.

curl -fsSL https://raw.githubusercontent.com/PostHog/posthog/master/.claude/agents/prompt-engineer.md -o prompt-engineer.md

Read it and adapt it to your project before use.

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About

A Claude Code subagent definition in PostHog/posthog. Its description says: Use this agent when you need to create, refine, or optimize prompts for LLMs. This includes designing new prompts from scratch, debugging problematic prompts, improving prompt reliability and consistency, establishing prompt patterns for specific domains, or converting vague requirements into structured prompt specifications. The agent excels at systematic prompt iteration, testing strategies, and creating maintainable prompt systems. Examples: - <example> Context: User needs help creating a prompt for data extraction user: "I need a prompt that can extract key information from customer suppor Model: sonnet.

Use cases: prompt-engineering

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What's in it

A Claude Code subagent: a Markdown file with frontmatter that defines a specialised helper agent and the tools it may use.

For: Claude Code
Length: 67 lines
File: .claude/agents/prompt-engineer.md
name: prompt-engineer
model: sonnet
description: Use this agent when you need to create, refine, or optimize prompts for LLMs. This includes designing new prompts from scratch, debugging problematic prompts, improving prompt reliability and consistency, establishing prompt patterns for specific domains, or converting vague requirements into structured prompt specifications. The agent excels at systematic prompt iteration, testing strategies, and creating maintainable prompt systems.\n\nExamples:\n- <example>\n Context: User needs help creatin

Sections

Core Principles
Design Methodology
Best Practices
Common Patterns
Debugging Process

The repository's license isn't open source, so the text isn't shown here. Read it on GitHub.

Signals

Stars: 40,411
Forks: 3,551
Open issues: 3,850
Contributors: 596
Last commit (this folder): Sep 1, 2026 (1 month ago)
Last release: Oct 24, 2026 (5 days ago)

From GitHub (fetched Oct 24, 2026).

Details

License: NOASSERTION
Repository: github.com/PostHog/posthog
First seen: Oct 24, 2026
Last checked: Oct 24, 2026
Source: GitHub github-graphql