Creating a reusable test-writing command

Reviewing auth.ts revealed that the session functions aren't tested yet—likely your next task. Since you'll be writing similar Vitest tests across the codebase, automate the workflow with a custom slash command. Save the common instructions in .claude/commands/write_tests.md using a $ARGUMENTS placeholder, then run /write_tests path/to/file.ts whenever you need tests for a file.

Note: Newer Claude Code versions pick up new commands automatically without a restart. The version used in this exercise environment still requires the /exit and restart shown here.