Crate turul_mcp_server_state_storage 

Server-Global State Storage for MCP Entity Registries

Provides pluggable persistence for server-global entity activation state (tools, resources, prompts) across different backends.

This crate follows the same pattern as turul-mcp-session-storage and turul-mcp-task-storage. Session state is client-scoped; server state is instance-global and shared across a cluster.

Backends

• InMemory — test double (single-process only)
• SQLite — local durable mode (feature: sqlite)
• PostgreSQL — shared relational deployments (feature: postgres)
• DynamoDB — serverless/AWS deployments (feature: dynamodb)

Re-exports

pub use error::ServerStateError;

pub use traits::BoxedServerStateStorage;

pub use traits::EntityState;

pub use traits::RegistrySnapshot;

pub use traits::ServerStateStorage;

pub use in_memory::InMemoryServerStateStorage;

Modules

error

Unified error types for server state storage operations.

in_memory

In-memory server state storage implementation.

traits

Core server state storage trait and data models.