MCP DuckDB Knowledge Graph Memory Server
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| MEMORY_FILE_PATH | No | The path to your memory data file (DuckDB database file) |
Instructions
Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.
This server publishes no instructions, or was last inspected before Glama recorded them.
Capabilities
Server capabilities have not been inspected yet.
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| create_entitiesC | Create multiple new entities in the knowledge graph |
| create_relationsC | Create multiple new relations between entities in the knowledge graph. Relations should be in active voice |
| add_observationsC | Add new observations to existing entities in the knowledge graph |
| delete_entitiesC | Delete multiple entities and their associated relations from the knowledge graph |
| delete_observationsC | Delete specific observations from entities in the knowledge graph |
| delete_relationsC | Delete multiple relations from the knowledge graph |
| search_nodesC | Search for nodes in the knowledge graph based on a query |
| open_nodesC | Open specific nodes in the knowledge graph by their names |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
TDQS
Scored across 8 tools
Most tools have distinct purposes targeting different aspects of the knowledge graph (entities, relations, observations, nodes), though 'open_nodes' and 'search_nodes' could potentially overlap in functionality if opening involves searching. The descriptions clarify that 'open_nodes' accesses specific named nodes while 'search_nodes' performs query-based lookup, but agents might still confuse them in some scenarios.
All tools follow a consistent verb_noun pattern with snake_case naming (e.g., add_observations, create_entities, delete_relations). The verbs are clear and appropriate for the actions (add, create, delete, open, search), and there are no deviations in style or convention throughout the set.
With 8 tools, this server is well-scoped for a knowledge graph memory system. Each tool appears to serve a specific and necessary function for managing entities, relations, observations, and nodes, without being overly sparse or bloated. The count aligns well with the domain's typical CRUD and query operations.
The tool set provides strong coverage for core knowledge graph operations, including creation, deletion, and querying of entities, relations, and observations. A minor gap is the lack of update tools (e.g., update_entities or update_relations), which might require workarounds like delete-and-recreate, but the surface is otherwise comprehensive for the stated purpose.