Show HN: Event catalog from code in 2 commands

Category: devtools

Tags: event-catalog, code-analysis, llm, developer-tools, mcp

Score: 6.8/10 (Innovation: 7, Technical: 7, Documentation: 7, Utility: 6)

Emit automatically generates a structured event catalog from your codebase by scanning event tracking calls and using an LLM to extract metadata, which is then committed to git and reviewed in PRs. It combines static analysis, LLM extraction, and MCP integration to keep event schemas synchronized with code, reducing drift. This tool is innovative in bridging code instrumentation and documentation through AI, though utility is somewhat niche for teams already invested in event-driven architectures.

Target audience: backend devs, data engineers, devops

Repository: https://github.com/Goodruns14/emit · TypeScript · AGPL-3.0 · 2 stars

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