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Langchain Prompt Engineering

Category: Engineering  ·  Sub-category: testing  ·  Last updated:
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".

About this skill (catalog notes)

Langchain Prompt Engineering includes a dedicated installation section; worked examples; pricing or quota commentary. At roughly 1,998 words the SKILL.md is on the longer end of the catalog distribution.

License
MIT
Original author
Jeremy Longshore <[email protected]>
Indexed lastmod
Catalog position
Engineering · testing
Indexed related skills
10

How Langchain Prompt Engineering fits the catalog

Langchain Prompt Engineering sits in the Engineering category under the testing sub-topic in the ClaudSkills catalog. There are 10 related skills indexed alongside it; comparing a few before installing usually reveals which fits your workflow best.

These notes are auto-generated from features detected in the SKILL.md file and from this catalog's structure — they aren't part of the source repository.

What this skill does

Langchain Prompt Engineering is a community-contributed Claude Code skill 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 Claude Code skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 138,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

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.

Telegram

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

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.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

Frequently asked questions

How do I install the Langchain Prompt Engineering Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/langchain-prompt-engineering/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.
What does the Langchain Prompt Engineering skill do?
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".
Is this skill free to install?
Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.
When should I use the Langchain Prompt Engineering skill?
Use Langchain Prompt Engineering when your Claude Code task falls under the Engineering category — specifically in the testing area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Langchain Prompt Engineering" or describe the task and let Claude pick). Browse related skills at /category/engineering/.
What is a Claude Code skill and how does the Langchain Prompt Engineering skill fit in?
A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Langchain Prompt Engineering is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA
Jeremy Longshore <[email protected]>. (2026). Langchain Prompt Engineering [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/langchain-prompt-engineering/
BibTeX
@misc{langchain-prompt-engineering-2026,
  author    = {Jeremy Longshore <[email protected]>},
  title     = {Langchain Prompt Engineering [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/langchain-prompt-engineering/}
}

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