Single tool 'execute_skill_action' has a minimal description (97 chars) that lacks actionable context for LLM selection. Input schema is present but parameter 'query_payload' has only a generic description ('Input execution payload for this skill') with no format, constraints, or examples of valid payloads. No output schema is documented, the tool returns a hardcoded JSON response with 'status' and 'message' fields, but this structure is not declared in the tool definition. No error handling guidance, no parameter validation rules, and no indication of what 'deterministic, zero-dependency' operations actually entails. The tool name 'execute_skill_action' is generic and does not follow verb_noun conventions clearly (what action? what skill?). No security considerations documented despite handling Web3/contract data.

• Rename tool to a specific action verb: 'validate_eip712_signature', 'detect_phishing_permit', or 'sanitize_typed_signature', match the actual domain operation.
• Document the output schema explicitly in the tool definition. Include field names, types, and descriptions: e.g., 'Returns object with fields: permit_scan_id (string), is_phishing_risk (boolean), signature_safety_grade (enum: SAFE_SCOPED_PERMIT|UNSAFE_UNLIMITED|PHISHING_DETECTED), sanitized_dossier_url (string)'.
• Add format and constraint documentation to 'query_payload' parameter. Specify: Is it a JSON string? A hex-encoded signature? A contract address? Provide an example structure or enum of valid payload types.
• Expand tool description to 50 - 150 characters with actionable context: 'Analyzes EIP-712 typed signatures to detect phishing risks and unlimited token allowances. Returns safety grade and reputation assessment. Call this before approving any permit transaction.'
• Add error handling guidance: Document what happens if the payload is malformed, if the contract is not found, or if the signature is invalid. Return structured errors with recovery hints (e.g., 'Invalid payload format. Expected JSON with keys: verifying_contract, spender_address, token_amount_wei').