---
name: cli-langchain
description: >-
  This skill should be used when the user needs help with langchain CLI commands, including app (manage langchain apps), integration (develop integration packages for langchain), template (develop installable templates), migrate, serve. Covers flags, subcommands, usage patterns, and troubleshooting for all 5 langchain commands.
---

# langchain CLI Reference

Expert command reference for **langchain** v0.0.37.

- **14** commands (3 with subcommands)
- **40** command flags + **2** global flags
- **0** usage examples
- Max nesting depth: 1

## When to Use

This skill applies when:
- Constructing or validating `langchain` commands
- Looking up flags, options, or subcommands
- Troubleshooting `langchain` invocations or errors
- Needing correct syntax for `langchain` operations

## Prerequisites

Install langchain:
```bash
npm install -g langchain@latest
```

## Quick Reference

| Command | Description |
| --- | --- |
| `langchain app` | Manage LangChain apps. |
| `langchain integration` | Develop integration packages for LangChain. |
| `langchain migrate` | Migrate langchain to the most recent version. |
| `langchain serve` | Start the LangServe app, whether it's a template or an app. |
| `langchain template` | Develop installable templates. |

### Global Flags

| Flag | Short | Type | Description |
| --- | --- | --- | --- |
| `--help` | `` | bool | Show this message and exit. |
| `--version` | `-v` | bool | Print the current CLI version. |

## Command Overview


### Command Groups

`app`, `integration`, `template`

### Commands

`migrate`, `serve`

## Common Usage Patterns


## Detailed References

For complete command documentation including all flags and subcommands:
- **Full command tree:** see `references/commands.md`
- **All usage examples:** see `references/examples.md`

## Troubleshooting

- Use `langchain --help` or `langchain <command> --help` for inline help
- Add `--verbose` for detailed output during debugging

## Re-scanning

To update this plugin after a CLI version change, run the `/scan-cli` command
or manually execute the crawler and generator.