Temporal Animation + Renaming Entities/Other Features

[ClaireBookworm]

• added support for renaming entities, enabling a video example for showing graph
• showing graph_viz_server, to show a way to see the graphed relationships between entiites

[greptile-apps]

Greptile Overview

Greptile Summary

This PR adds entity renaming capabilities and visualization tools to the temporal memory system. The main additions include:

• Entity Renaming: New rename_entity() RPC method allows updating entity descriptors and metadata. The VLM can automatically extract rename commands from user queries using regex pattern matching (RENAME_ENTITY: entity_id="..." new_name="...").
• Graph Visualization Server: New Flask-based web server (graph_viz_server.py) provides real-time visualization of entity graphs using vis.js, with interactive controls for relations, distances, and time information.
• Video Example: New example script demonstrating temporal memory usage with video files, including a query endpoint on port 8081.
• Rerun Integration: Added Rerun visualization support with camera view blueprints and image logging.
• G1 Blueprint Integration: Temporal memory now included in full_featured blueprint with clear_memory_on_start=True.

The implementation correctly uses parameterized SQL queries to prevent injection attacks in update_entity(). The Flask visualization server appropriately binds to 127.0.0.1 for localhost-only access. Previous review comments about module-level imports have been addressed - re and time modules are now imported at the top level.

Confidence Score: 4/5

• This PR is safe to merge with minor considerations for testing
• The code is well-structured with proper security practices (parameterized SQL, localhost binding). Previous review comments have been addressed. Score of 4 reflects that this is experimental code adding significant new functionality that would benefit from thorough testing, particularly the regex-based rename extraction and the interaction between VLM responses and the rename system.
• Focus testing on temporal_memory.py rename logic and the regex pattern matching for RENAME_ENTITY commands to ensure it handles edge cases properly

Important Files Changed

Filename	Overview
dimos/perception/experimental/temporal_memory/entity_graph_db.py	Added update_entity method for renaming/updating entities; SQL injection safe via parameterized query
dimos/perception/experimental/temporal_memory/graph_viz_server.py	New Flask-based visualization server for entity graphs; binds to localhost only
dimos/perception/experimental/temporal_memory/video_temporal_example.py	New example demonstrating temporal memory with video files and query endpoints
dimos/perception/experimental/temporal_memory/temporal_memory.py	Added rename_entity RPC method, query-based renaming via regex, Rerun integration, and view blueprints

Sequence Diagram

sequenceDiagram
    participant User
    participant TemporalMemory
    participant VLM
    participant EntityGraphDB
    participant FlaskViz
    
    Note over TemporalMemory,EntityGraphDB: Entity Renaming Flow
    
    User->>TemporalMemory: query("rename person in brown jacket to john")
    TemporalMemory->>TemporalMemory: Build prompt with rename instructions
    TemporalMemory->>VLM: query(frame, prompt)
    VLM-->>TemporalMemory: Response with RENAME_ENTITY command
    TemporalMemory->>TemporalMemory: Extract rename via regex pattern
    TemporalMemory->>TemporalMemory: rename_entity(entity_id="E8", new_name="john")
    TemporalMemory->>EntityGraphDB: get_entity(entity_id)
    EntityGraphDB-->>TemporalMemory: entity data
    TemporalMemory->>TemporalMemory: Build new descriptor: "john (person wearing brown jacket)"
    TemporalMemory->>EntityGraphDB: update_entity(entity_id, descriptor, metadata)
    EntityGraphDB->>EntityGraphDB: Merge metadata with existing
    EntityGraphDB->>EntityGraphDB: Execute SQL UPDATE with params
    EntityGraphDB-->>TemporalMemory: Success
    TemporalMemory->>TemporalMemory: Update entity roster in state
    TemporalMemory->>TemporalMemory: Remove RENAME_ENTITY from response
    TemporalMemory-->>User: Cleaned response text
    
    Note over FlaskViz,EntityGraphDB: Visualization Flow
    
    FlaskViz->>FlaskViz: Poll /api/graph every 1s
    FlaskViz->>EntityGraphDB: get_all_entities()
    EntityGraphDB-->>FlaskViz: entities list
    FlaskViz->>EntityGraphDB: get_recent_relations()
    EntityGraphDB-->>FlaskViz: relations list
    FlaskViz->>EntityGraphDB: get_distance(e1, e2) for all pairs
    EntityGraphDB-->>FlaskViz: distance data
    FlaskViz->>FlaskViz: Render graph with vis.js
    FlaskViz-->>User: Display updated entity names

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[greptile-apps]

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[greptile-apps]

re module imported inside method instead of at module level - move to top imports for better performance

[greptile-apps]

Flask server binds to 0.0.0.0 making it accessible from any network interface - this could expose the temporal memory database to unauthorized access. Consider binding to 127.0.0.1 for localhost-only access unless external access is specifically required.

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