MCP servers / @modelcontextprotocol/server-memory
1 of its last 1 updates changed what the agent reads: 0 tool descriptions rewritten, up to 2.0.0.
npm package · npm page · recorded on 24 October 2026 on a clean machine with placeholder settings; only tools/list was sent. A changed description is not a vulnerability. Method and limits.
add_observations: input schema changed
create_entities: input schema changed
create_relations: input schema changed
delete_entities: input schema changed
delete_observations: input schema changed
delete_relations: input schema changed
open_nodes: input schema changed
read_graph: input schema changed
search_nodes: input schema changed
Releases tried: 1.0.0 (2026-10-11); 2.0.0 (2026-10-19).
The pin is the SHA-256 of the tool's name, description and input schema, as verfy.lock records it. The same pin in your lock means your agent reads this exact definition.
| Tool | Description | Pin |
|---|---|---|
| create_entities | Create multiple new entities in the knowledge graph. An entity whose name already exists, or repeats an earlier entity in the same call, is skipped and its observations are not added; the result lists the skipped names in `skipped`. Use add_observations to add observations to an existing entity. | ede9d1a91884 |
| create_relations | Create multiple new relations between entities in the knowledge graph. Relations should be in active voice | 2500c10a4128 |
| add_observations | Add new observations to existing entities in the knowledge graph | bbd49e484386 |
| delete_entities | Delete multiple entities and their associated relations from the knowledge graph | a8feb774050d |
| delete_observations | Delete specific observations from entities in the knowledge graph | 59e61ad4e74b |
| delete_relations | Delete multiple relations from the knowledge graph | c5820782ccc9 |
| read_graph | Read the entire knowledge graph | 3e08ef42a9f9 |
| search_nodes | Search for nodes in the knowledge graph based on a query | 2ff72986e657 |
| open_nodes | Open specific nodes in the knowledge graph by their names | 218720d82f1e |
Pin what @modelcontextprotocol/server-memory serves you today, commit the lock, and a pull request fails when a tool changes, with the text before and after. Pin the package version in your MCP config as well.
$ pip install verfy
$ verfy lock check --update # shows each tool, then writes verfy.lock
$ git add verfy.lock# .github/workflows/verfy.yml, after actions/checkout
- uses: anvarbekovjavohir277-dot/verfy-action@v1Maintain this server? Run the same check on your releases and add the Locked by Verfy badge to your README.