Server has 8 tools with explicit schemas and descriptions, but quality is inconsistent. Naming follows verb_noun convention (good). Descriptions are present but brief (avg ~40 chars, below 194-char baseline). Critical gaps: (1) Parameters lack type constraints and validation guidance. (2) No output schemas documented, LLMs cannot predict response structure. (3) Irreversible operations (deploy_*) lack confirmation/dry-run patterns. (4) Error handling is generic ('Tool X failed: {error}') with no recovery guidance. (5) call_contract accepts 'abi' as string, should be object or require pre-registration. (6) erc20_balance missing required 'account' parameter to specify whose balance. (7) No pagination, rate limiting, or result limits documented.

• Document output schemas for all tools. Example: erc20_balance should return {balance: string, decimals: number, symbol: string}. Include in tool definition or handler comments.
• Add confirmation/dry-run pattern to deploy_* tools. Implement a 'dry_run' boolean parameter (default false) that returns estimated gas and contract address preview without executing.
• Enhance error handling in CallToolRequestSchema handler. Catch specific error types (InvalidAddress, InsufficientBalance, NetworkError) and return structured {error_code, message, recovery_hint} instead of generic 'failed' message.
• Add format constraints to parameter descriptions. E.g., contractAddress: 'Ethereum address (0x-prefixed hex, 42 chars)', amount: 'Token amount as string in smallest unit (wei for ETH, token decimals for ERC20)'.
• Fix erc20_balance schema: add required 'account' parameter (type: string, description: 'Account address to check balance for'). Current tool is incomplete.