MCPs › Dev tools › Whetstone MCP
Captures and encodes developer rejections of AI output into reusable constraints, enabling agents to learn from past mistakes and apply taste consistently across projects.
Not monetized yet
Turn Whetstone MCP’s tool calls into revenue: one disclosed sponsored slot, 70% revenue share, fail-open by design.
Install Whetstone MCP
For anyone using Whetstone MCP — no Lulu account needed# stdio server — install per the repository README: https://github.com/frontier-collective/whetstone-mcp
Real-time weather for any city, built on the lulu-ads widget gallery. First-party, free forever.
View server →FAQ
Whetstone MCP installs from source — follow the repository README.
Unrated out of 100, computed from cross-registry traction signals (installs, stars, registry presence) — never influenced by sponsorship.
Similar servers
Works well together
Your server?
This is for the person who owns Whetstone MCP — adds Lulu Ads to your own code. Not the install steps above, those are for your users.
Copies a ready prompt: your coding agent installs the lulu-ads SDK, wires the slot, and applies the widget design guide.
or set up manually at getlulu.dev/publishers
Get verified so you can edit the page. Your badge is already live below — no claim needed for that.
Managed hosting with monetization built in — waitlist.
[](https://getlulu.dev/mcps/whetstone-mcp-34d9bb)