diff --git a/.continue/rules/new-protocol-message.md b/.continue/rules/new-protocol-message.md
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+---
+name: New protocol message
+description: Create a new protocol message from core/gui/ide to core/gui/ide
+---
+
+Create a new protocol message by taking the following steps:
+
+## 1. Define the message type
+
+Add your new message type definition to the appropriate file in the `protocol/` directory with correct TypeScript typing.
+
+## 2. Check for duplicates
+
+Verify that no existing message type already provides the same functionality.
+
+## 3. Add to passThrough (if webview ↔ core)
+
+If your message is between webview and core, add it to `core/protocol/passThrough.ts`.
+
+## 4. Add to IntelliJ constants (if webview ↔ core)
+
+If your message is between webview and core, add it to `extensions/intellij/src/main/kotlin/com/github/continuedev/continueintellijextension/constants/MessageTypes.kt`.
+
+## 5. Implement the message handler
+
+Implement the message in the appropriate location:
+
+- **Messages to core**: `core/core.ts`
+- **Messages to GUI**: `useWebviewListener` hook
+- **Messages to VS Code IDE**: `VsCodeMessenger.ts`
+- **Messages to JetBrains IDE**: `IdeProtocolClient.kt`
+
+## 6. Test the implementation
+
+Verify that your message works correctly in both VS Code and JetBrains IDEs if applicable.
diff --git a/.continue/rules/overeager.md b/.continue/rules/overeager.md
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+---
+name: Don't be overeager
+---
+
+Avoid over-eagerly adding new features. You should solve the problem at hand and then can propose further work.
diff --git a/core/rules.md b/core/rules.md
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+# `core` rules
+
+Whenever a new protocol message is added to the `protocol/` directory, check the following:
+
+- It's type is defined correctly
+- If it is a message from webview to core or vice versa:
+  - It has been added to `core/protocol/passThrough.ts`
+  - It has been added to `extensions/intellij/src/main/kotlin/com/github/continuedev/continueintellijextension/constants/MessageTypes.kt`
+- It is implemented in either `core/core.ts` (for messages to the core), in a `useWebviewListener` (for messages to the gui), or in `VsCodeMessenger.ts` for VS Code or `IdeProtocolClient.kt` for JetBriains (for messages to the IDE).
+- It does not duplicate functionality from another message type that already exists.