langchain-agents

langchain-agents is a skill for Claude Code from eyadsibai/ltk. It costs 49 tokens per session (1,270 once invoked), scanned A, original, no licence file.

Instructions for LangChain, a framework for building applications around language models. They cover chains of steps, tool-using agents, document question answering, retrieval systems, conversation memory, and LangSmith.

In plain words
What is it for?
Creating LangChain chains and agents, connecting tools, building retrieval-augmented generation systems, answering questions from documents, and managing conversation history.
Why use it?
They help an agent recognize common LangChain work and apply the relevant project guidance when building language-model applications.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the ltk plugin — 113 skills, 30 commands, 21 agents, 3 MCP servers shipped together

Good fit Creating LangChain chains and agents, connecting tools, building retrieval-augmented generation systems, answering questions from documents, and managing conversation history.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/eyadsibai/ltk/langchain-agents
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add eyadsibai/ltk --skill langchain-agents
Clone the repo
git clone --depth 1 https://github.com/eyadsibai/ltk

Made for: Claude Code.

Or install ltk, the plugin that ships this one along with the rest of its 113 skills, 30 commands, 21 agents, 3 MCP servers.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for langchain-agents

README.md
[![agentmods](https://agentmods.dev/badge/skills/eyadsibai/ltk/langchain-agents/github.svg)](https://agentmods.dev/skills/eyadsibai/ltk/langchain-agents)
Your own site
<a href="https://agentmods.dev/skills/eyadsibai/ltk/langchain-agents"><img src="https://agentmods.dev/badge/skills/eyadsibai/ltk/langchain-agents/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for langchain-agents

Your own site · 80×15
<a href="https://agentmods.dev/skills/eyadsibai/ltk/langchain-agents"><img src="https://agentmods.dev/badge/skills/eyadsibai/ltk/langchain-agents.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 49 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,270 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00049 $0.01270
Opus 5 $0.00024 $0.00635
Sonnet 5 $0.00010 $0.00254
Haiku 4.5 $0.00005 $0.00127

Measured 9d ago against content hash 3ff6e94121e8, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

langchain-agents scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/ltk-core/skills/langchain-agents/SKILL.md · 167 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 9d ago First seen · 167 lines · 49 tokens per session scan A 3ff6e94121e8

Subscribe to this mod's changes

langchain-agents is a skill published in the GitHub repository eyadsibai/ltk (7 stars, last pushed 7mo ago), with no licence file. It adds 49 tokens to every session and 1,270 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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