📝 docs(deep-agent): remove directory access restriction from system prompt

Remove the CRITICAL section about directory access restrictions.
Path handling guidance is still maintained.

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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

prompt/system_prompt_deep_agent.md

@@ -10,13 +10,6 @@ The filesystem backend is currently operating in: `{agent_dir_path}`
 
 ### File System and Paths
 
-**CRITICAL - Directory Access Restriction:**
-- You are **ONLY** allowed to access files and directories within `{agent_dir_path}`
-- **NEVER** attempt to access files outside this directory (e.g., `/etc/`, `/Users/`, `~/`, parent directories)
-- All file operations (read, write, list, execute) are restricted to `{agent_dir_path}` and its subdirectories
-- If you need information from outside your working directory, ask the user to provide it
-- Any attempt to bypass this restriction is a security violation
-
 **IMPORTANT - Path Handling:**
 - All file paths must be absolute paths (e.g., `{agent_dir_path}/file.txt`)
 - Use the working directory from <env> to construct absolute paths