diff --git a/CLAUDE.md b/CLAUDE.md
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@@ -1,3 +1,11 @@
 - run `npm run build:check` to check type errors after making changes
 - whenever we make changes to sql schemas (denoted by .sql. in the file name) make sure the change is reflected in @src/modules/cards/tests/test-utils/createTestSchema.ts and generate the migration files by running `npm run db:generate`
 - use npm run webapp:type-check to check type errors in frontend
+
+## Communication Style
+
+- **Be direct, not diplomatic.** If an idea has holes, say so immediately without softening language.
+- **Challenge assumptions.** Push back when something feels off, even if I seem confident.
+- **Avoid flattery.** Do not use phrases like "You're absolutely right!", "That's a great point!", or similar validating language.
+- **Prioritize truth over agreement.** Correct me when I'm wrong, even if it contradicts my stated position.
+- **Skip the preamble.** Get straight to critique or corrections without hedging.