Source: https://seerepo.com/compare/langchain-ai/langchain/vs/NVIDIA/SkillSpector
Markdown source: https://seerepo.com/compare/langchain-ai/langchain/vs/NVIDIA/SkillSpector.md
Description: langchain and SkillSpector share 5 technologies: OpenAI, LangChain, langchain-openai, langsmith, and Pydantic. Both are written in Python.

# langchain vs SkillSpector

langchain and SkillSpector share 5 technologies: OpenAI, LangChain, langchain-openai, langsmith, and Pydantic. Both are written in Python.

- [langchain-ai/langchain](https://seerepo.com/r/langchain-ai/langchain): The agent engineering platform.
- [NVIDIA/SkillSpector](https://seerepo.com/r/NVIDIA/SkillSpector): Security scanner for AI agent skills. Detect vulnerabilities, malicious patterns, security risks, prompt injection, data exfiltration, and supply-chain risks in Claude Code, Codex, and MCP skills before you install them.

## What they share and what sets them apart

- In common: OpenAI, LangChain, langchain-openai, langsmith, Pydantic
- Only in langchain: chromadb, AIOHTTP, SQLAlchemy, LangGraph, langchain-text-splitters, tiktoken, exa-py, Ollama, groq, pillow
- Only in SkillSpector: Rich, Google, langchain-anthropic, earendil-works, langchain-aws, typebox, boto3

## Side by side

| | langchain | SkillSpector |
|---|---|---|
| Size | 426,036 lines written, 1,654 code files | 234,232 lines written, 134 code files |
| Who writes it | 0.3% of its commits signed by AI. With GitHub Copilot, Claude Code, and Gemini CLI | 19.5% of its commits signed by AI. With Claude Code, Codex, Cursor, and GitHub Copilot |
| Activity | Last push November 4, 2026, 17,017 commits, 148,995 stars | Last push November 4, 2026, 858 commits, 24,278 stars |
| Tests | 895 test files. 16.4% of its code files have a test that imports them | 238 test files. 85.8% of its code files have a test that imports them |

- Size: Lines written by people and agents, without generated ones; code files, without tests.
- Who writes it: A commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
- Activity: From GitHub and its history, on the day SeeRepo read it.
- Tests: The files that test the code, and the share of code files a test imports.

## Frequently asked questions

### Which is bigger, langchain or SkillSpector?

langchain, with 426,036 lines written; SkillSpector has 234,232.

The proof: [langchain-ai/langchain's code at commit aa2528f](https://github.com/langchain-ai/langchain/tree/aa2528fb980a290d2b06c83a1be43e60bc2348f9)

### Which has more GitHub stars, langchain or SkillSpector?

langchain, with 148,995 stars; SkillSpector has 24,278.

The proof: [langchain-ai/langchain on GitHub](https://github.com/langchain-ai/langchain)

### Which has more tests, langchain or SkillSpector?

langchain, with 895 test files; SkillSpector has 238.

The proof: [langchain-ai/langchain's code at commit aa2528f](https://github.com/langchain-ai/langchain/tree/aa2528fb980a290d2b06c83a1be43e60bc2348f9)

### Which was updated more recently, langchain or SkillSpector?

Both got their last push on November 4, 2026.

The proof: [NVIDIA/SkillSpector's commits on GitHub](https://github.com/NVIDIA/SkillSpector/commits)

### Which has more commits signed by AI, langchain or SkillSpector?

SkillSpector: an AI signed 19.5% of its commits, with Claude Code, Codex, Cursor, and GitHub Copilot; in langchain, 0.3%.

The proof: [the commits each tool signed in NVIDIA/SkillSpector](https://seerepo.com/r/NVIDIA/SkillSpector/ai)

## Sources

- langchain-ai/langchain: Read on November 4, 2026, at commit aa2528f (https://github.com/langchain-ai/langchain/tree/aa2528fb980a290d2b06c83a1be43e60bc2348f9)
- NVIDIA/SkillSpector: Read on November 4, 2026, at commit fdf8d58 (https://github.com/NVIDIA/SkillSpector/tree/fdf8d586dc62140b175ac6decb5f6b3a8d2ae8b5)

## What is your repo built with?

Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.