Langchain Prompt Engineering

Quality score: 70/100 · Category: Engineering · Sub-category: testing

ai:openaiai:geminiai:llm

Manage LangChain 1.0 prompts like code — LangSmith prompt hub versioning, XML-tag conventions for Claude, few-shot example selection, discriminated-union extraction schemas, and A/B test wiring. Use when taking ad-hoc prompts into version control, migrating prompts from f-strings to ChatPromptTemplate, optimizing prompts for Claude vs GPT-4o vs Gemini, or A/B testing a prompt change. Trigger with "langchain prompt hub", "langsmith prompts", "prompt versioning", "claude xml prompt", "few-shot example selector", "prompt engineering".

What this skill does

Langchain Prompt Engineering is a production-ready Claude Code skill (quality score 70/100) in the testing sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/langchain-prompt-engineering/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when taking ad-hoc prompts into version control, migrating prompts from f-strings to ChatPromptTemplate, optimizing prompts for Claude vs GPT-4o vs Gemini, or A/B testing a prompt change. Trigger with "langchain prompt hub", "langsmith prompts", "prompt versioning", "claude xml prompt", "few-shot example selector", "prompt engineering".

Who uses this skill

The Langchain Prompt Engineering skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It is part of the open ClaudSkills registry, a community-curated catalog of 15,000+ capabilities you can install for Claude Code — the Claude CLI agent.

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/langchain-prompt-engineering
curl -L https://claudskills.com/skills/langchain-prompt-engineering/SKILL.md \
  -o ~/.claude/skills/langchain-prompt-engineering/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/langchain-prompt-engineering/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/langchain-prompt-engineering/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\langchain-prompt-engineering\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

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Part of ClaudSkills — the open registry for Claude Code skills. · What's New · Install guide · About · llms.txt

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