Jurre-Jan Smit is a toolmaker in the Netherlands and a partner at poolsuite.partners. He builds CLIs, consoles and consultation surfaces that keep humans in the loop of agent-driven work, from the terminal up.
Products
Apps
- consult-user-mcp A human consultation interface for agents
- strandkanban Ticket system UI for agents, built on beads and the Claude SDK
- the-ultimate-music-quiz Real-time multiplayer music quiz. SongPop meets Buzz
- mermaid-gantt Keyboard-first Gantt editor with Mermaid import/export
- sheet-cms Two-way sync between Google Sheets and local JSON
Sillier things
- prettygoodtime A 2009 music blog that never existed
- orphan-obliterator No orphaned words on the last line
- shazam-export Shazam history to CSV, GeoJSON, GPX and more
- web-haptics-polyfill Haptics for mobile web, iOS exploit included
- pixi-paper Real-time comparison of HTML-to-canvas screenshot libraries
GitHub activity
Contributions / day
Commits / day by language
Microblog
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One line in
CLAUDE.mdpays for itself all day: run independent tool calls in the same message. Reading five files stops being five round trips and becomes one. -
I stopped keeping
.envfiles. onenv pulls the values out of 1Password and injects them for one command, so a leaked repo leaks nothing and a new machine needs no setup.