Add comprehensive user memory block management tools

- Add user_note_append: Append text to user memory blocks
- Add user_note_replace: Find and replace text in blocks
- Add user_note_set: Completely set block content
- Add user_note_view: View block content

These tools provide fine-grained control over user-specific
memory blocks, allowing the agent to view, append, replace,
or completely rewrite user information as needed.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[e-mail]>

register_tools.py

···
 from tools.search import search_bluesky_posts, SearchArgs
 from tools.post import create_new_bluesky_post, PostArgs
 from tools.feed import get_bluesky_feed, FeedArgs
-from tools.blocks import attach_user_blocks, detach_user_blocks, user_note_append, user_note_replace, user_note_set, AttachUserBlocksArgs, DetachUserBlocksArgs, UserNoteAppendArgs, UserNoteReplaceArgs, UserNoteSetArgs
+from tools.blocks import attach_user_blocks, detach_user_blocks, user_note_append, user_note_replace, user_note_set, user_note_view, AttachUserBlocksArgs, DetachUserBlocksArgs, UserNoteAppendArgs, UserNoteReplaceArgs, UserNoteSetArgs, UserNoteViewArgs
 from tools.reply import bluesky_reply, ReplyArgs
 from tools.halt import halt_activity, HaltArgs
 
···
         "args_schema": UserNoteSetArgs,
         "description": "Set the complete content of a user's memory block.",
         "tags": ["memory", "blocks", "user", "set"]
+    },
+    {
+        "func": user_note_view,
+        "args_schema": UserNoteViewArgs,
+        "description": "View the content of a user's memory block.",
+        "tags": ["memory", "blocks", "user", "view"]
     },
     {
         "func": bluesky_reply,

tools/blocks.py

···
     content: str = Field(..., description="Complete content to set for the user's memory block")
 
 
+class UserNoteViewArgs(BaseModel):
+    handle: str = Field(..., description="User Bluesky handle (e.g., 'cameron.pfiffer.org')")
+
+
 
 def attach_user_blocks(handles: list, agent_state: "AgentState") -> str:
     """
···
         raise Exception(f"Error setting user block content: {str(e)}")
 
 
+def user_note_view(handle: str, agent_state: "AgentState") -> str:
+    """
+    View the content of a user's memory block.
+    
+    Args:
+        handle: User Bluesky handle (e.g., 'cameron.pfiffer.org')
+        agent_state: The agent state object containing agent information
+        
+    Returns:
+        String containing the user's memory block content
+    """
+    import os
+    import logging
+    from letta_client import Letta
+    
+    logger = logging.getLogger(__name__)
+    
+    try:
+        client = Letta(token=os.environ["LETTA_API_KEY"])
+        
+        # Sanitize handle for block label
+        clean_handle = handle.lstrip('@').replace('.', '_').replace('-', '_').replace(' ', '_')
+        block_label = f"user_{clean_handle}"
+        
+        # Check if block exists
+        blocks = client.blocks.list(label=block_label)
+        
+        if not blocks or len(blocks) == 0:
+            return f"No memory block found for user: {handle}"
+            
+        block = blocks[0]
+        logger.info(f"Retrieved content for block: {block_label}")
+        
+        return f"Memory block for {handle}:\n\n{block.value}"
+        
+    except Exception as e:
+        logger.error(f"Error viewing user block: {e}")
+        raise Exception(f"Error viewing user block: {str(e)}")
+
+