I've been using Claude Code a LOT lately ($5,800+ in tokens last month on my $200 Claude Max plan), and now experimenting with custom slash commands and subagents. Here's an example: using parallel subagents to independently write integration tests and encode policies for @us.policyengine.org.

We all know the difficulty of counting the r's in "strawberry", but what about other fruits, or even other letters?

This combinatorics problem grows exponentially, but with the help of Claude Code, I've built a tool to solve it, at least for common fruits.

Here it is in action: