{
  "context": "This criteria evaluates how well the engineer uses the @walletconnect/types package to implement a session proposal manager. The focus is on proper usage of ProposalTypes interfaces, particularly ProposalTypes.Struct and its nested type properties for validation and management of WalletConnect session proposals.",
  "type": "weighted_checklist",
  "checklist": [
    {
      "name": "ProposalTypes.Struct Usage",
      "description": "Uses ProposalTypes.Struct as the type for proposal parameters and return values throughout the implementation",
      "max_score": 15
    },
    {
      "name": "Required Namespaces Validation",
      "description": "Accesses and validates the requiredNamespaces property of ProposalTypes.Struct, checking for proper structure of ProposalTypes.RequiredNamespaces",
      "max_score": 15
    },
    {
      "name": "Namespace Properties Check",
      "description": "Validates namespace properties including chains, methods, and events arrays within the namespace structures (ProposalTypes.BaseNamespace or SessionTypes.Namespace)",
      "max_score": 15
    },
    {
      "name": "Relay Protocol Validation",
      "description": "Validates the relays property of ProposalTypes.Struct, checking for proper RelayerTypes.ProtocolOptions structure",
      "max_score": 10
    },
    {
      "name": "Proposer Metadata Validation",
      "description": "Accesses and validates the proposer.metadata property, checking for CoreTypes.Metadata fields (name, description, url, icons)",
      "max_score": 15
    },
    {
      "name": "Proposal ID Handling",
      "description": "Correctly uses the id property from ProposalTypes.Struct for storage and retrieval operations",
      "max_score": 10
    },
    {
      "name": "Expiry Management",
      "description": "Uses the expiry property from ProposalTypes.Struct for timestamp comparison and expiration checking",
      "max_score": 10
    },
    {
      "name": "Type Safety",
      "description": "Maintains type safety throughout by using TypeScript types from @walletconnect/types rather than any or loosely typed objects",
      "max_score": 10
    }
  ]
}