Dive Into LangGraph
luochang212/dive-into-langgraph
A Chinese-language guide and reference for building agents with LangGraph 1.0, from a first ReAct agent through middleware, memory, MCP, RAG and web search.
Use this sub-skill when defining, validating, sharing, loading, or troubleshooting smolagents tools, built-in/default tools, Hub/Space/LangChain integrations, or MCP tool collections.
Install Tools And Integrations
$ npx skills add VectorSpaceLab/AREX-Skill --skill tools-and-integrations -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install VectorSpaceLab/AREX-Skill tools-and-integrations --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/VectorSpaceLab/AREX-Skill.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/repositories/repo-skills/smolagents/sub-skills/tools-and-integrations .claude/skills/tools-and-integrations && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "tools-and-integrations" agent skill from https://github.com/VectorSpaceLab/AREX-Skill/tree/main/skills/repositories/repo-skills/smolagents/sub-skills/tools-and-integrations into .claude/skills/tools-and-integrations/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tools-and-integrations", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/VectorSpaceLab/AREX-Skill/tree/main/skills/repositories/repo-skills/smolagents/sub-skills/tools-and-integrationsType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add VectorSpaceLab/AREX-Skill --skill tools-and-integrations -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install VectorSpaceLab/AREX-Skill tools-and-integrations --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/VectorSpaceLab/AREX-Skill.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/repositories/repo-skills/smolagents/sub-skills/tools-and-integrations .agents/skills/tools-and-integrations && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "tools-and-integrations" agent skill from https://github.com/VectorSpaceLab/AREX-Skill/tree/main/skills/repositories/repo-skills/smolagents/sub-skills/tools-and-integrations into .agents/skills/tools-and-integrations/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tools-and-integrations", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add VectorSpaceLab/AREX-Skill --skill tools-and-integrations -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install VectorSpaceLab/AREX-Skill tools-and-integrations --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/VectorSpaceLab/AREX-Skill.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/repositories/repo-skills/smolagents/sub-skills/tools-and-integrations .cursor/skills/tools-and-integrations && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "tools-and-integrations" agent skill from https://github.com/VectorSpaceLab/AREX-Skill/tree/main/skills/repositories/repo-skills/smolagents/sub-skills/tools-and-integrations into .cursor/skills/tools-and-integrations/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tools-and-integrations", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/VectorSpaceLab/AREX-Skill.git --path skills/repositories/repo-skills/smolagents/sub-skills/tools-and-integrations--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add VectorSpaceLab/AREX-Skill --skill tools-and-integrations -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install VectorSpaceLab/AREX-Skill tools-and-integrations --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/VectorSpaceLab/AREX-Skill.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/repositories/repo-skills/smolagents/sub-skills/tools-and-integrations .gemini/skills/tools-and-integrations && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "tools-and-integrations" agent skill from https://github.com/VectorSpaceLab/AREX-Skill/tree/main/skills/repositories/repo-skills/smolagents/sub-skills/tools-and-integrations into .gemini/skills/tools-and-integrations/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tools-and-integrations", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install VectorSpaceLab/AREX-Skill tools-and-integrationsInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add VectorSpaceLab/AREX-Skill --skill tools-and-integrations -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/VectorSpaceLab/AREX-Skill.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/repositories/repo-skills/smolagents/sub-skills/tools-and-integrations .github/skills/tools-and-integrations && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "tools-and-integrations" agent skill from https://github.com/VectorSpaceLab/AREX-Skill/tree/main/skills/repositories/repo-skills/smolagents/sub-skills/tools-and-integrations into .github/skills/tools-and-integrations/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tools-and-integrations", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add VectorSpaceLab/AREX-Skill --skill tools-and-integrations -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install VectorSpaceLab/AREX-Skill tools-and-integrations --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/VectorSpaceLab/AREX-Skill.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/repositories/repo-skills/smolagents/sub-skills/tools-and-integrations .opencode/skills/tools-and-integrations && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "tools-and-integrations" agent skill from https://github.com/VectorSpaceLab/AREX-Skill/tree/main/skills/repositories/repo-skills/smolagents/sub-skills/tools-and-integrations into .opencode/skills/tools-and-integrations/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tools-and-integrations", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
tools-and-integrations- GitHub stars
- 330
- Token cost
- ~1.1k tokens
- SKILL.md length
- 371 words
- Files
- 6 (incl. scripts, references)
- Skills in repo
- 159
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
Use this sub-skill when defining, validating, sharing, loading, or troubleshooting smolagents tools, built-in/default tools, Hub/Space/LangChain integrations, or MCP tool collections.
- Works in 5 steps: Choose @tool for a simple stateless… → Keep tool names valid Python identifiers… → Validate schema shape before wiring a… → …
- Tasks that involve Building AI agents
- SKILL.md covers Use This For, Route Elsewhere, Fast Path and Minimal Examples, plus 1 more section
- Runs Python scripts from its folder; calls python
What it does
Tools And Integrations is an agent skill from VectorSpaceLab/AREX-Skill. Use this sub-skill when defining, validating, sharing, loading, or troubleshooting smolagents tools, built-in/default tools, Hub/Space/LangChain integrations, or MCP tool collections.
Its SKILL.md is about 1.1k tokens, which your agent loads only when the skill is triggered. The skill folder holds 7 other files, including scripts and reference files (for example `references/api-reference.md`, `references/built-in-tools.md` and `references/troubleshooting.md`).
It sits in AI & LLM Engineering, covering Building AI agents and MCP servers. It works with LangChain. The repository describes itself as: A Skill Library for Automated Machine Learning. The licence is Apache-2.0.
When your agent uses it
- Tasks that involve Building AI agents
- Tasks that involve MCP servers
Example prompts
- “/tools-and-integrations”
Requirements
- Python 3
Workflow steps
5 steps, taken from the first numbered list in SKILL.md.
- Choose @tool for a simple stateless function; choose a Tool subclass when you need class attributes, setup(), helper methods, lazy…
- Keep tool names valid Python identifiers and unique inside an agent toolbox; agent.tools is a dict keyed by tool.name.
- Validate schema shape before wiring a tool into an agent: python scripts/validate_tool_schema.py path/to/tool_file.py --object…
- For remote or third-party integrations, require explicit trust (trust_remote_code=True) only after code/server review, and document…
- Use bundled references for details
What it can do on your machine
Read from SKILL.md and the folder at commit ac3fe1a. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Ships 1 file in scripts/ (Python), which the agent can run.
Shell commands in SKILL.md call:
python
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Tools And Integrations loads about 1.1k tokens when it runs, and up to ~7.6k if it reads all its reference files. Until then it costs about 52 tokens; SKILL.md has 371 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.
SKILL.md
The full file from VectorSpaceLab/AREX-Skill at commit ac3fe1a, republished under its Apache-2.0 licence (© VectorSpaceLab). 371 words, ~1,077 tokens.
Download SKILL.mdSave it as
.claude/skills/tools-and-integrations/SKILL.md (or your agent's skills folder). This skill also uses 5 other files; get the full folder from GitHub.- name
- tools-and-integrations
- description
- Use this sub-skill when defining, validating, sharing, loading, or troubleshooting smolagents tools, built-in/default tools, Hub/Space/LangChain integrations, or MCP tool collections.
- disable-model-invocation
- true
- metadata.disco-role
- operating
- license
- Apache 2.0
Tools and Integrations
Use This For
- Creating a smolagents tool with a
Toolsubclass or the@tooldecorator. - Designing
inputs,output_type, optionaloutput_schema, and runtime argument validation. - Adding built-in tools such as
DuckDuckGoSearchTool,VisitWebpageTool,UserInputTool, orFinalAnswerToolto an agent. - Loading tools from Hub Spaces/collections, Gradio apps, LangChain tools, or MCP servers.
- Diagnosing schema, serialization, optional dependency, trust, network, and name-collision failures.
Route Elsewhere
- Agent selection, managed agents, planning, callbacks,
max_steps, or toolbox composition strategy across agents: use../agent-workflows/SKILL.md. - Model classes, provider credentials, model routing, structured model output behavior, or LiteLLM setup: use
../model-providers/SKILL.md. smolagent,webagent, Gradio UI, CLI commands, and app launching: use../cli-and-ui/SKILL.md.- Code execution sandboxes, executor backends, authorized imports, and secure execution policy: use
../execution-and-safety/SKILL.md.
Fast Path
- Choose
@toolfor a simple stateless function; choose aToolsubclass when you need class attributes,setup(), helper methods, lazy model/client initialization, or serialization control. - Keep tool names valid Python identifiers and unique inside an agent toolbox;
agent.toolsis a dict keyed bytool.name. - Validate schema shape before wiring a tool into an agent:
python scripts/validate_tool_schema.py path/to/tool_file.py --object tool_or_class_name. - For remote or third-party integrations, require explicit trust (
trust_remote_code=True) only after code/server review, and document optional extras. - Use bundled references for details:
- API reference for
Tool,@tool, schemas, validation, serialization, and helper APIs. - Workflows for common recipes: decorator, subclass, structured output, MCP, Hub, Space, LangChain, and toolbox updates.
- Built-in tools for default tool capabilities and dependencies.
- Troubleshooting for common failures and fixes.
- API reference for
Show full SKILL.md (125 more words)Show less
Minimal Examples
Decorator tools must have type hints, a return type, and an Args: docstring section for every argument:
from smolagents import tool
@tool
def normalize_label(label: str, lowercase: bool = True) -> str:
"""Normalize a user-facing label.
Args:
label: Label text to normalize.
lowercase: Whether to lowercase before replacing spaces.
"""
cleaned = label.strip().replace(" ", "_")
return cleaned.lower() if lowercase else cleanedSubclass tools must define name, description, inputs, output_type, and forward:
from smolagents import Tool
class ReceiptLookupTool(Tool):
name = "receipt_lookup"
description = "Looks up a receipt summary by integer receipt id."
inputs = {"receipt_id": {"type": "integer", "description": "Receipt id to retrieve."}}
output_type = "string"
def forward(self, receipt_id: int) -> str:
return f"Receipt {receipt_id}: not connected to a database in this example."Guardrails
- Do not put secrets, local checkout paths, or private environment paths into tool code, descriptions, or serialized Hub artifacts.
- Put imports used by a serializable tool inside methods/functions, not only at module scope, so
save(),to_dict(), andpush_to_hub()can reconstruct self-contained code. - Mark nullable/defaultable inputs consistently between
forwardtype hints andinputs; mismatches raise validation errors. - Treat
output_schemaas prompt/schema guidance for structured outputs; it does not replace testing the actual return value. - Install optional extras only for the integration being used, such as MCP, web search, webpage parsing, LangChain, Gradio, or Transformers pipeline tools.
© VectorSpaceLab, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 5 other files (scripts, references) in skills/repositories/repo-skills/smolagents/sub-skills/tools-and-integrations of VectorSpaceLab/AREX-Skill.
- SKILL.md
- references/api-reference.md
- references/built-in-tools.md
- references/troubleshooting.md
- references/workflows.md
- scripts/validate_tool_schema.py
Open the folder on GitHubat commit ac3fe1a
Compare with similar skills
Tools And Integrations next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Tools And Integrations this skillVectorSpaceLab/AREX-Skill | 330 | — | ~1.1k | Automated safety check: Pass | Apache-2.0 | |
| Dive Into LangGraphluochang212/dive-into-langgraph | 457 | — | ~837 | Automated safety check: Notes | Custom licence | |
| Tool Designagentailor/fullstack-langgraph-nextjs-agent | 132 | — | ~3.2k | Automated safety check: Pass | MIT | |
| Chemgraphargonne-lcf/ChemGraph | 162 | — | ~2.7k | Automated safety check: Pass | Apache-2.0 | |
| Agent Eval Casesagentailor/fullstack-langgraph-nextjs-agent | 132 | — | ~5.3k | Automated safety check: Pass | MIT | |
| Solana Agent Kitinternet-court/internet-court-skill | 6.5k | 2 repos | ~3.8k | Automated safety check: Notes | Apache-2.0 |
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Related
Works with
Categories
Questions about Tools And Integrations
What does Tools And Integrations do?
Use this sub-skill when defining, validating, sharing, loading, or troubleshooting smolagents tools, built-in/default tools, Hub/Space/LangChain integrations, or MCP tool collections. Tools And Integrations is an agent skill from VectorSpaceLab/AREX-Skill. Use this sub-skill when defining, validating, sharing, loading, or troubleshooting smolagents tools, built-in/default tools, Hub/Space/LangChain integrations, or MCP tool collections.
When should I use Tools And Integrations?
Tools And Integrations fits situations like: tasks that involve Building AI agents; tasks that involve MCP servers.
How do I install Tools And Integrations in Claude Code?
Run `npx skills add VectorSpaceLab/AREX-Skill --skill tools-and-integrations -a claude-code`. Or copy the skill folder (skills/repositories/repo-skills/smolagents/sub-skills/tools-and-integrations in VectorSpaceLab/AREX-Skill) into .claude/skills/tools-and-integrations in your project. Claude Code loads it when a task matches its description.
How do I install Tools And Integrations in Codex?
Run `npx skills add VectorSpaceLab/AREX-Skill --skill tools-and-integrations -a codex`. Or copy the skill folder (skills/repositories/repo-skills/smolagents/sub-skills/tools-and-integrations in VectorSpaceLab/AREX-Skill) into .agents/skills/tools-and-integrations in your project. Codex loads it when a task matches its description.
Can I use Tools And Integrations in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add VectorSpaceLab/AREX-Skill --skill tools-and-integrations -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/tools-and-integrations, .gemini/skills/tools-and-integrations, .github/skills/tools-and-integrations and .opencode/skills/tools-and-integrations in your project.
What does Tools And Integrations need to run?
Going by SKILL.md and its folder, Tools And Integrations needs Python for the scripts in its folder and the command-line tools its instructions call (python). Our summary lists: Python 3.
Does Tools And Integrations access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Tools And Integrations safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.
What licence does Tools And Integrations use?
Tools And Integrations is published under the Apache-2.0 licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Tools And Integrations use?
About 1.1k tokens (SKILL.md is roughly 4.3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 6.5k tokens, read only when the agent opens those files.
What are the alternatives to Tools And Integrations?
Skills that share tags, products or a category with Tools And Integrations: Dive Into LangGraph (luochang212/dive-into-langgraph, 457 stars), Tool Design (agentailor/fullstack-langgraph-nextjs-agent, 132 stars), Chemgraph (argonne-lcf/ChemGraph, 162 stars) and Agent Eval Cases (agentailor/fullstack-langgraph-nextjs-agent, 132 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Tools And Integrations?
VectorSpaceLab (a GitHub organization) maintains it in VectorSpaceLab/AREX-Skill, which has 330 GitHub stars. The repository holds 159 skills in this directory. The repository was last updated on September 3, 2026.
Source: VectorSpaceLab/AREX-Skill on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.