This is a moderately-quality MCP server with solid fundamentals but notable gaps. 24 tools are registered with descriptions and input schemas using Zod validation. Tool naming follows verb_noun convention consistently (portkey_create_wallet, portkey_transfer, etc.), which aids discoverability. Descriptions are present for all tools and many exceed the 10-char minimum, but quality varies significantly, some are comprehensive (e.g., portkey_create_wallet with 450+ chars covering password behavior and mnemonic safety), while others are minimal (e.g., portkey_get_token_list, portkey_get_token_balance with no visible schema or parameter descriptions in the provided source). Input schemas are declared via Zod but only tools 1-8 have visible parameter details in the excerpt; tools 9-24 lack visible parameter documentation, making it impossible to verify if they have proper enum constraints, required/optional flags, and descriptions. Output schemas are not documented anywhere, the `ok()` helper returns raw JSON without specifying what fields clients should expect. Error handling exists (the `fail()` helper) but is not shown in detail, without seeing its implementation, we cannot assess if it provides recovery guidance. The server declares tool annotations (readOnlyHint, destructiveHint for appropriate tools), which is good, but no other protocol features are present. For production use, parameter schemas for tools 9-24 must be completed, output schemas must be documented, and error responses must guide recovery.

• Complete and expose the input schemas for all tools 9 - 24. Add Zod definitions with enum constraints for network/chain/tokenSymbol/collectionId, required/optional flags, and descriptions for every parameter. Reference src/core/query.ts, src/core/transfer.ts, src/core/contract.ts, and src/core/bridge.ts to extract parameter details.
• Document output schemas for all 24 tools. Create a schema file or JSDoc comments specifying what fields each tool returns (e.g., portkey_create_wallet returns { address, mnemonic?, privateKey?, publicKey, name, password?, network }). Use structured TypeScript interfaces and expose them in the MCP server definition.
• Expand descriptions for tools 9 - 24 to 100 - 250 characters. Include: what the tool does, when to call it (e.g., 'Call after retrieving wallet address'), any prerequisites, and what data it returns. Example: 'Get current token balance for an EOA wallet. Call after identifying the token symbol. Returns balance as a decimal string and token decimals.' (not just 'Get token balance for a wallet address on a specific chain.')
• Implement and document error handling recovery paths. Modify the `fail()` helper to return structured errors: { code, message, userFacingMessage, retryable, suggestedNextSteps }. For 'token not found', suggest calling portkey_get_token_list(). For 'invalid address', explain the expected format.
• Add a confirmation-request pattern for irreversible tools. Before executing portkey_transfer, portkey_cross_chain_transfer, portkey_call_send_method, and portkey_ebridge_transfer, return a structured response asking the user to confirm: 'Send 100 USDC from 0xabc... to 0xdef...? Reply with confirm_transfer(id=<returned_id>) to proceed.' Implement the confirm_* tools to finalize the operation.