Source: https://seerepo.com/compare/google-gemini/gemini-cli/vs/KeygraphHQ/shannon
Markdown source: https://seerepo.com/compare/google-gemini/gemini-cli/vs/KeygraphHQ/shannon.md
Description: gemini-cli and shannon share 3 technologies: js-yaml, Ajv, and ajv-formats. Both are written in TypeScript.

# gemini-cli vs shannon

gemini-cli and shannon share 3 technologies: js-yaml, Ajv, and ajv-formats. Both are written in TypeScript.

- [google-gemini/gemini-cli](https://seerepo.com/r/google-gemini/gemini-cli): An open-source AI agent that brings the power of Gemini directly into your terminal.
- [KeygraphHQ/shannon](https://seerepo.com/r/KeygraphHQ/shannon): Shannon is an AI pentester for web applications and APIs. It analyzes your source code, identifies attack vectors, and executes real exploits to prove vulnerabilities before they reach production.

## What they share and what sets them apart

- In common: js-yaml, Ajv, ajv-formats
- Only in gemini-cli: Express, React, MCP, @agentclientprotocol/sdk, Zod, winston, ink, @xterm/headless, cli-spinners, prompts, lowlight, html-to-text, marked, zod-to-json-schema, OpenTelemetry
- Only in shannon: @clack/prompts, Pi, handlebars, typebox

## Side by side

| | gemini-cli | shannon |
|---|---|---|
| Size | 735,894 lines written, 1,072 code files | 53,041 lines written, 209 code files |
| Who writes it | 8.2% of its commits signed by AI. With Gemini CLI, Jules, and GitHub Copilot | 17.5% of its commits signed by AI. With Claude Code |
| Activity | Last push November 4, 2026, 6,573 commits, 108,723 stars | Last push November 4, 2026, 269 commits, 51,261 stars |
| Tests | 1,056 test files. 86.1% of its code files have a test that imports them | 4 test files. 1.9% 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, gemini-cli or shannon?

gemini-cli, with 735,894 lines written; shannon has 53,041.

The proof: [google-gemini/gemini-cli's code at commit 89e9d25](https://github.com/google-gemini/gemini-cli/tree/89e9d25d67e7dc7cb0deb84ad2c3474b7a392d31)

### Which has more GitHub stars, gemini-cli or shannon?

gemini-cli, with 108,723 stars; shannon has 51,261.

The proof: [google-gemini/gemini-cli on GitHub](https://github.com/google-gemini/gemini-cli)

### Which has more tests, gemini-cli or shannon?

gemini-cli, with 1,056 test files; shannon has 4.

The proof: [google-gemini/gemini-cli's code at commit 89e9d25](https://github.com/google-gemini/gemini-cli/tree/89e9d25d67e7dc7cb0deb84ad2c3474b7a392d31)

### Which was updated more recently, gemini-cli or shannon?

Both got their last push on November 4, 2026.

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

### Which has more commits signed by AI, gemini-cli or shannon?

shannon: an AI signed 17.5% of its commits, with Claude Code; in gemini-cli, 8.2%.

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

## Sources

- google-gemini/gemini-cli: Read on November 4, 2026, at commit 89e9d25 (https://github.com/google-gemini/gemini-cli/tree/89e9d25d67e7dc7cb0deb84ad2c3474b7a392d31)
- KeygraphHQ/shannon: Read on November 5, 2026, at commit 8c75a9b (https://github.com/KeygraphHQ/shannon/tree/8c75a9b5a89ac02b7be8efeca7e129284d37e20f)

## 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.