Context:
This fix was originally made in this #4541 however it was only applied to custom prompts. This PR aims to make these changes consistent for custom and default prompts.

Solution:
System prompt's (System.md) and context files (AGENT.md, CLAUDE.md) are merged together using ## headers as a way to create file boundaries. Currently, context file boundaries can become unclear for agents when a user uses ## headers or worse # in their context files. A good solution is to use the less commonly used xml tags as file context boundaries instead of ## which are more commonly used.

Fix:

• Replaced # Project Context with <project_context></project_context
• Replaced ## fake/file/path/AGENTS.md with
  • <project_instruction path="fake/file/path/AGENTS.md"></project_instruction>

Example:

<project_context>

Project-specific instructions and guidelines:

<project_instructions path="fake/file/path/SYSTEM.md">  
content  
</project_instructions> 

<project_instructions path="fake/file/path/AGENTS.md">  
content  
</project_instructions> 

<project_instructions path="fake/file/path/AGENTS.md">  
content  
</project_instructions> 
 
</project_context>

Fixes: #4691