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Langchain Langgraph Subgraphs

Category: Engineering  ·  Sub-category: testing  ·  Last updated:
Compose LangGraph 1.0 subgraphs correctly — shared state key propagation, Send / Command(graph=...) dispatch, callback scoping, per-subgraph recursion budgets, and testing each subgraph in isolation. Use when building a planner + executor, a nested agent team, or a reusable subgraph library. Trigger with "langgraph subgraph", "langgraph composition", "langgraph send", "nested agents", "langgraph state propagation", "Command(graph=...)", "langgraph subgraph callbacks".
Security AStatic scan found no risk patternsHow grading works ›

About this skill (catalog notes)

Langchain Langgraph Subgraphs includes a dedicated installation section; worked examples; 8 code blocks for direct copy-paste. At roughly 1,983 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 Langgraph Subgraphs fits the catalog

Langchain Langgraph Subgraphs 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 Langgraph Subgraphs 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-langgraph-subgraphs/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when building a planner + executor, a nested agent team, or a reusable subgraph library. Trigger with "langgraph subgraph", "langgraph composition", "langgraph send", "nested agents", "langgraph state propagation", "Command(graph=.

Who uses this skill

The Langchain Langgraph Subgraphs 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 146,000+ 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-langgraph-subgraphs
curl -L https://claudskills.com/skills/langchain-langgraph-subgraphs/SKILL.md \
  -o ~/.claude/skills/langchain-langgraph-subgraphs/SKILL.md

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

Skills live at ~/.claude/skills/langchain-langgraph-subgraphs/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\langchain-langgraph-subgraphs\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 Langgraph Subgraphs Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/langchain-langgraph-subgraphs/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.
What does the Langchain Langgraph Subgraphs skill do?
Compose LangGraph 1.0 subgraphs correctly — shared state key propagation, Send / Command(graph=...) dispatch, callback scoping, per-subgraph recursion budgets, and testing each subgraph in isolation. Use when building a planner + executor, a nested agent team, or a reusable subgraph library. Trigger with "langgraph subgraph", "langgraph composition", "langgraph send", "nested agents", "langgraph state propagation", "Command(graph=...)", "langgraph subgraph callbacks".
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 Langgraph Subgraphs skill?
Use Langchain Langgraph Subgraphs 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 Langgraph Subgraphs" 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 Langgraph Subgraphs 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 Langgraph Subgraphs 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 Langgraph Subgraphs [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/langchain-langgraph-subgraphs/
BibTeX
@misc{langchain-langgraph-subgraphs-2026,
  author    = {Jeremy Longshore <[email protected]>},
  title     = {Langchain Langgraph Subgraphs [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/langchain-langgraph-subgraphs/}
}

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Security scan

Grade A · scanned 2026-07-06 — free static scan against the OWASP Agentic Skills Top 10.

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