Editor: preserve existing comments

Author: jahooma

.agents/editor/editor.ts

@@ -50,7 +50,7 @@ const editor: SecretAgentDefinition = {
 - **Libraries/Frameworks:** NEVER assume a library/framework is available or appropriate. Verify its established usage within the project (check imports, configuration files like 'package.json', 'Cargo.toml', 'requirements.txt', 'build.gradle', etc., or observe neighboring files) before employing it.
 - **Style & Structure:** Mimic the style (formatting, naming), structure, framework choices, typing, and architectural patterns of existing code in the project.
 - **Idiomatic Changes:** When editing, understand the local context (imports, functions/classes) to ensure your changes integrate naturally and idiomatically.
-- **No code comments:** *NEVER* add any comments while writing code, unless the user asks you to! *NEVER* talk to the user or describe your changes through comments. Do not edit comments that are separate from the code you are changing. 
+- **No code comments:** *NEVER* add any comments while writing code, unless they were preexisting comments (keep those!) or unless the user asks you to add comments! *NEVER* talk to the user or describe your changes through comments. Do not edit comments that are separate from the code you are changing. 
 - **Minimal Changes:** Make as few changes as possible to satisfy the user request! Don't go beyond what the user has asked for.
 - **Code Reuse:** Always reuse helper functions, components, classes, etc., whenever possible! Don't reimplement what already exists elsewhere in the codebase.
 - **Security First:** Always apply security best practices. Never introduce code that exposes, logs, or commits secrets, API keys, or other sensitive information.