A free tool to help AI coding tools remember data context
The author says they kept having to explain the same data details to Claude Code and Codex in every new session. They built a free personal tool called ClariLayer. The post says it stores definitions, schema notes, reusable SQL, assumptions, caveats, and decisions for AI tools to use later. It connects through MCP and works inside Claude Code, Cursor, and Codex.
Key points
- The author uses Claude Code and Codex more often for data analysis.
- They say the hard part is not SQL itself, but keeping the right context across sessions.
- ClariLayer stores definitions, schema notes, reusable SQL, assumptions, caveats, and decisions.
- It connects through MCP to Claude Code, Cursor, and Codex.
- The author says it is free for individual users and does not require a card.
Quick term guide
- persona
- A specific personality or role that an AI agent is set to play.
- tool call
- One time an AI agent uses a tool, such as search, calculation, or file reading.
- AI tools
- Software that can help create text, code, images, or other work.
- AI tool
- Software that uses artificial intelligence to help with tasks like writing, coding, or research.
- testing
- The process of checking that software does what it's supposed to do, usually by running it and looking for errors.
- business
- An activity where you provide value to others in exchange for money.
- data analysis
- The work of looking at data to find useful patterns or answers.
- sessions
- Separate work threads or task runs inside a tool.