I build tools for developers and AI agents. Currently a Senior Developer Relations Engineer at Google, where I created googleworkspace/cli β a Rust CLI and MCP server for Google Workspace with 21k+ stars.
Previously: Descartes Labs (petabyte-scale satellite imagery pipelines) and USGS (NASA-funded cropland mapping with ML).
- π€ Agent-first tooling β Designing CLIs and MCP servers that work for AI agents, not just humans
- π¦ Open source at scale β Maintaining packages with 12M+ combined weekly npm downloads
- π¦ Rust β From CLI tools to embedded firmware
- βοΈ Writing β The MCP Abstraction Tax β Rewrite Your CLI for AI Agents β Fiction AST & NER with GLiNER
- Visual search over billions of aerial and satellite images β Computer Vision and Image Understanding, 2020
- Automated cropland mapping of continental Africa β ISPRS Journal, 2017
See my jpoehnelt-bot GitHub profile.







