The tip.md MCP server has moderate definition quality with significant gaps. Tool names follow verb_noun convention (check_, get_, tip_, withdraw_, export_) which is good, but several critical issues emerge: (1) Parameter descriptions are present but often lack actionable constraints, e.g., 'amount' parameters don't specify minimum/maximum or decimal precision despite being financial operations. (2) Output schemas are NOT documented in the visible source, the server returns structured JSON responses but the tool definitions don't declare what fields will be present, forcing LLMs to guess. (3) Error handling is minimal, no recovery guidance in descriptions. (4) Five tools (check_tipping_balance, crypto_tipping, get_user_wallet_types, export_tipping_wallet, withdraw_tipping_funds) include security-sensitive operations (private key export, wallet withdrawal) but lack explicit confirmation/dry-run patterns and don't warn about irreversible consequences in descriptions. (5) The ping tool is deprecated per 2026-07-28 spec. Tool descriptions range 20 - 250 chars, within acceptable bounds, but lack specific 'when to use' guidance. Schemas are present for all tools (Zod objects visible in source) but are not formally documented as return types.

• Document return types for every tool. Add a 'Returns' section to each tool description listing the expected JSON structure: 'Returns: {success: boolean, data: {userId, address, balance, ...}, error?: {code, message}}'.
• Add numeric constraints to amount/value parameters. Change 'amount':{'type':'number'} to include 'minimum': 0.01, 'maximum': 1000000 (or domain-appropriate bounds). Document in description: 'Amount in USDC (0.01 - 1000000 per transaction)'.
• Implement confirmation pattern for irreversible operations. Add optional 'confirm' boolean parameter (default false). E.g., 'withdraw_tipping_funds' requires confirm=true or returns a 'requires_confirmation' response with operation_id. Prevents accidental agent mistakes.
• Remove private keys and secrets from response schemas. If export_tipping_wallet must return a key, use a server-side secure storage pattern: return a reference/handle instead, e.g. {'keyHandle': 'key_abc123'} and provide a separate 'retrieve_private_key' tool that requires additional auth.
• Add error recovery hints to descriptions. E.g., 'tip_on_base' description: 'Returns transaction details on success. On failure (insufficient balance, invalid recipient), the error message will suggest check_tipping_balance or crypto_tipping for verification.'
• Standardize enum values. Ensure blockchain names, token symbols, and other enums are consistently documented with examples: 'blockchain: "base" (options: ethereum, base, solana)'.
• Clarify optional parameter behavior. For tipMdUserId, update description: 'Your tip.md user ID. If omitted, a new secure ID is generated and your wallets are created automatically. Return this ID for future calls.'

Inferred effective spec: <=2025-11-25.

• Relies on Logging (deprecated) - log to stderr or use OpenTelemetry