TypeScript Type Fixer

This an LLM agent whose goal is to help you fix typescript type errors. Warning: it's a work in progress.

Features

• Uses user defined tools to fix type errors in your local codebase.
• Integrates with the ts-morph TypeScript compiler API to provide type information to the LLM agent.

Goals

Automate the boring stuff

• It's boring to fix type errors, so let's automate it!
• If the agent can fix the type error, it will commit the fix directly to your codebase.
• If the agent can't fix the type error, it should at least provide a good starting point by summarizing what it learned.

Should work in large codebases

• There's no use in having a tool that can only fix type errors in dummy projects consisting of < 10 files.
• The goal is to make this work in 100,000+ line codebases!

Try to keep token usage reasonable

• Don't go bankrupt dumping entire files into the prompt!
• Instead give the agent tools to read specific parts of the codebase relevant to fixing the type error.

Notes

• I initialize the ts-morph project on the server which runs independently of the LLM interactions. This is because the ts-morph project can take a while to initialize for large projects. This setup makes testing and development much faster.
• I only search files for semantic errors (aka type errors). Syntactic errors are not included.