{
  "context": "This criteria evaluates how well the engineer utilizes the IKeyChain interface from @walletconnect/types to implement a secure credential manager. The focus is exclusively on proper usage of the package's secure storage abstractions.",
  "type": "weighted_checklist",
  "checklist": [
    {
      "name": "IKeyChain Implementation",
      "description": "Uses IKeyChain interface from @walletconnect/types as the storage mechanism, either by implementing it or composing with an IKeyChain instance",
      "max_score": 30
    },
    {
      "name": "set Method Usage",
      "description": "Correctly uses IKeyChain.set(key: string, value: string) method to store credentials securely",
      "max_score": 15
    },
    {
      "name": "get Method Usage",
      "description": "Correctly uses IKeyChain.get(key: string) method to retrieve credentials, properly handling the return value",
      "max_score": 15
    },
    {
      "name": "getAll Method Usage",
      "description": "Correctly uses IKeyChain.getAll() or IKeyChain.getKeys() method to list all stored credential keys",
      "max_score": 15
    },
    {
      "name": "delete Method Usage",
      "description": "Correctly uses IKeyChain.delete(key: string) or IKeyChain.del(key: string) method to remove specific credentials",
      "max_score": 15
    },
    {
      "name": "Type Safety",
      "description": "Properly types all interactions with IKeyChain interface, leveraging TypeScript types from @walletconnect/types",
      "max_score": 10
    }
  ]
}