Simon Willison’s Weblog


Semgrep: AutoFixes using LLMs (via) semgrep is a really neat tool for semantic grep against source code—you can give it a pattern like “log.$A(...)” to match all forms of log.warning(...) / log.error(...) etc.

Ilia Choly built semgrepx— xargs for semgrep—and here shows how it can be used along with my llm CLI tool to execute code replacements against matches by passing them through an LLM such as Claude 3 Opus.