ESHAN JAIN

Work / gutcheck

gutcheck

Check your gut against the internet before you commit. A free, open-source market researcher for Claude Code.

Role
Builder
Status
Open source A Claude Code skill
The gutcheck README on GitHub
The problem

Before you build something, you want to know whether anyone wants it. Checking by hand across Trends, Reddit, news and more takes hours.

What I did

Built a Claude Code skill that designs a small study for your question, pulls live evidence and tells you what it thinks.

Outcome

Free, open source, works with no API keys, and everything runs on your machine.

See gutcheck on GitHub ↗

01The problem

Before you build something, you want to know whether anyone wants it. Checking by hand across Google Trends, Reddit, the news and the app stores takes hours, and a hunch is not evidence.

02What I built

gutcheck is a market researcher for Claude Code. Give it an idea you want to build, a problem you keep hitting, a topic you are curious about or a decision you are stuck on. It works out what would actually answer the question, designs a study to match, and pulls live evidence from Google Trends, Reddit, Google News, Wikipedia, Hacker News, GitHub, the App Store, YouTube and the web. Then it tells you what it thinks and why.

  • It scales with the stakes: a hunch gets ten minutes and a straight answer, and a business plan or dissertation gets a research plan first
  • Every report leads with a verdict and a confidence level, argues the other side, and ends with something you can do this week
  • Other apps (Claude chat, ChatGPT) get a web-only mode that says so and caps its confidence

03Results

Free and open source. It works with no API keys, and everything runs on your machine.

Ask Eshan

Pick a question and I’ll answer it.