{"passport":{"unfragile":{"@version":"1.0","version":"2026-05","artifact":{"id":"npm_npm-mcptoolgateclient","slug":"npm-mcptoolgateclient","name":"@mcptoolgate/client","type":"mcp","url":"https://www.npmjs.com/package/@mcptoolgate/client","page_url":"https://unfragile.ai/npm-mcptoolgateclient","categories":["mcp-servers"],"tags":["mcp","claude","security","governance","approval","ai","tools","human-in-the-loop","enterprise"],"pricing":{"model":"open_source","free":true,"starting_price":null},"status":"active","verified":false},"capabilities":[{"id":"npm_npm-mcptoolgateclient__cap_0","uri":"capability://tool.use.integration.human.in.the.loop.mcp.tool.approval.gateway","name":"human-in-the-loop mcp tool approval gateway","description":"Intercepts MCP tool invocations from Claude Desktop before execution and routes them through a human approval workflow. Implements a middleware pattern that sits between the MCP client and tool handlers, capturing tool calls, presenting them to a human reviewer with full context (tool name, parameters, description), and only allowing execution upon explicit approval. Uses event-driven architecture to maintain non-blocking async approval flows.","intents":["I need to prevent Claude from executing sensitive tools without my explicit approval","I want to audit and log every tool invocation before it runs in production","I need to implement governance controls for enterprise AI tool usage","I want to review tool parameters and reject dangerous or malformed requests before execution"],"best_for":["enterprise teams deploying Claude Desktop with access to sensitive APIs or databases","security-conscious organizations requiring compliance-driven tool governance","teams building AI agents that interact with production systems"],"limitations":["Approval latency adds synchronous blocking time to tool execution — not suitable for real-time latency-critical workflows","Requires human availability for approval — unattended/autonomous execution is blocked until approval is provided","No built-in timeout mechanism for pending approvals — long-running approval requests may cause tool call timeouts","Single approval workflow pattern — no role-based approval routing or multi-level escalation built-in"],"requires":["Claude Desktop 0.1.0 or later with MCP support","Node.js 18+ runtime for the client","MCP server compatible with tool definition schema","Network connectivity between Claude Desktop and approval gateway"],"input_types":["MCP tool call objects (name, arguments, description)","structured tool definitions with parameter schemas"],"output_types":["approval/rejection decision","audit logs with timestamp and reviewer identity","tool execution result or error response"],"categories":["tool-use-integration","safety-moderation"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"npm_npm-mcptoolgateclient__cap_1","uri":"capability://tool.use.integration.mcp.tool.call.interception.and.context.enrichment","name":"mcp tool call interception and context enrichment","description":"Captures all outbound MCP tool calls from Claude Desktop at the protocol level and enriches them with metadata before routing to approval or execution. Implements a transparent proxy pattern that parses MCP messages, extracts tool invocation details (name, parameters, schema), and augments them with execution context (timestamp, caller identity, risk classification). Maintains full fidelity of original tool definitions and parameter types for accurate approval decisions.","intents":["I want to see exactly what parameters Claude is sending to each tool before execution","I need to classify tools by risk level and apply different approval rules to high-risk operations","I want to correlate tool calls with user sessions and audit trails","I need to validate that tool parameters match their declared schemas before execution"],"best_for":["teams building compliance-auditable AI systems with detailed tool call logging","organizations needing risk-based tool governance with dynamic approval rules","developers implementing custom tool validation or parameter sanitization logic"],"limitations":["Interception adds ~50-100ms overhead per tool call due to message parsing and enrichment","No built-in parameter transformation — only inspection and logging, not modification","Limited to tools exposed via MCP protocol — cannot intercept direct function calls or non-MCP integrations","Requires Claude Desktop to support MCP protocol version 1.0+ — older versions may not expose sufficient tool metadata"],"requires":["MCP protocol 1.0 or later","Claude Desktop with MCP client support","Access to MCP tool definition schemas"],"input_types":["MCP protocol messages (tool calls, tool definitions)","structured tool schemas (JSON Schema format)"],"output_types":["enriched tool call metadata (timestamp, risk score, parameter validation results)","audit log entries with full call context","validation error messages for schema mismatches"],"categories":["tool-use-integration","data-processing-analysis"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"npm_npm-mcptoolgateclient__cap_2","uri":"capability://automation.workflow.approval.decision.persistence.and.audit.trail.logging","name":"approval decision persistence and audit trail logging","description":"Maintains a persistent record of all tool approval decisions, rejections, and execution outcomes with full audit trail metadata. Implements append-only logging with immutable records including approver identity, decision timestamp, tool details, parameters, and execution result. Supports structured query and export of approval history for compliance reporting and forensic analysis. Uses event sourcing pattern to ensure audit trail integrity.","intents":["I need to prove to auditors that all tool executions were explicitly approved","I want to query approval history to understand patterns in tool usage and rejections","I need to export audit logs in compliance-friendly formats for regulatory reporting","I want to investigate security incidents by reviewing the full chain of tool approvals and executions"],"best_for":["regulated industries (finance, healthcare, government) requiring compliance audit trails","security teams conducting post-incident forensics on AI tool usage","organizations implementing SOC 2 or ISO 27001 compliance for AI systems"],"limitations":["No built-in log rotation or retention policies — requires external log management for long-term storage","Audit logs stored locally by default — no built-in cloud sync or distributed logging","No encryption at rest — sensitive approval decisions are logged in plaintext unless external encryption is applied","Query performance degrades with large log volumes (>100k entries) without indexing"],"requires":["Persistent file system or database for log storage","Node.js 18+ with file system access","Sufficient disk space for audit log retention policy"],"input_types":["approval decision objects (approved/rejected, approver, timestamp)","tool execution results and error messages"],"output_types":["audit log entries (JSON or CSV format)","compliance reports with approval statistics","forensic analysis queries (by tool, approver, date range, outcome)"],"categories":["automation-workflow","safety-moderation"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"npm_npm-mcptoolgateclient__cap_3","uri":"capability://tool.use.integration.mcp.server.connection.management.and.lifecycle.control","name":"mcp server connection management and lifecycle control","description":"Manages the lifecycle of MCP server connections from Claude Desktop, including connection establishment, health monitoring, graceful shutdown, and error recovery. Implements connection pooling with automatic reconnection logic and heartbeat monitoring to detect stale connections. Handles MCP protocol handshake, capability negotiation, and tool definition discovery. Provides hooks for custom connection policies and rate limiting per MCP server.","intents":["I want to ensure MCP server connections are stable and automatically recover from transient failures","I need to control which MCP servers Claude can connect to and enforce connection policies","I want to monitor the health of MCP server connections and get alerts on failures","I need to implement rate limiting or connection quotas per MCP server for resource management"],"best_for":["teams running multiple MCP servers and needing centralized connection management","organizations requiring high availability for MCP-based tool integrations","developers building MCP infrastructure with custom connection policies"],"limitations":["No built-in load balancing across multiple MCP server instances — single connection per server","Reconnection logic uses exponential backoff with fixed max retries — no adaptive retry strategies","Health monitoring is connection-level only — cannot detect MCP server degradation without explicit tool calls","No connection pooling for concurrent tool calls — sequential tool execution may be bottlenecked by single connection"],"requires":["MCP server compatible with MCP protocol 1.0+","Network connectivity to MCP server endpoints","Node.js 18+ with network socket support"],"input_types":["MCP server endpoint configuration (host, port, protocol)","connection policy rules (allowed servers, rate limits, timeouts)"],"output_types":["connection status (connected, disconnected, error)","health check results and latency metrics","tool definition catalog from connected servers"],"categories":["tool-use-integration","automation-workflow"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"npm_npm-mcptoolgateclient__cap_4","uri":"capability://tool.use.integration.approval.workflow.ui.integration.with.claude.desktop","name":"approval workflow ui integration with claude desktop","description":"Provides a user interface for reviewing and approving/rejecting tool invocations, integrated with Claude Desktop's native UI or presented via a companion web interface. Displays tool name, description, parameters with their values, and risk classification. Implements approval decision capture with optional comments and reason codes. Uses real-time notification to alert users of pending approvals and push decisions back to Claude Desktop execution context.","intents":["I want a clear, easy-to-use interface to review what Claude is trying to do before it executes","I need to quickly approve safe tool calls and reject suspicious ones without context switching","I want to add comments or notes to approval decisions for audit trail documentation","I need real-time notifications when Claude tries to execute a tool requiring approval"],"best_for":["non-technical stakeholders who need to approve tool executions without understanding code","security teams reviewing high-risk tool calls in real-time","organizations where approval authority is distributed across multiple users"],"limitations":["UI is read-only for tool parameters — cannot modify parameters before approval, only approve/reject as-is","No built-in role-based access control — all users with access see all pending approvals","Approval UI must be actively monitored — no automatic escalation if approval is not provided within timeout","Web UI requires additional deployment infrastructure separate from Claude Desktop"],"requires":["Claude Desktop 0.1.0 or later","Modern web browser (Chrome, Firefox, Safari, Edge) for web UI","Network connectivity between Claude Desktop and approval UI service"],"input_types":["tool invocation details (name, parameters, description, risk score)","user identity and approval authority context"],"output_types":["approval decision (approved/rejected)","optional approval comments and reason codes","decision timestamp and approver identity"],"categories":["tool-use-integration","safety-moderation"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"npm_npm-mcptoolgateclient__cap_5","uri":"capability://safety.moderation.tool.risk.classification.and.dynamic.approval.rules","name":"tool risk classification and dynamic approval rules","description":"Automatically classifies MCP tools by risk level (low, medium, high, critical) based on tool metadata, parameter types, and configurable risk policies. Implements rule engine that applies different approval workflows based on risk classification — low-risk tools may auto-approve, medium-risk require single approval, high-risk require multi-level approval. Supports custom risk scoring functions and policy definitions in declarative format. Enables dynamic rule updates without restarting the client.","intents":["I want to auto-approve safe, read-only tools but require approval for tools that modify data","I need different approval workflows for different risk levels of tools","I want to define custom risk policies based on my organization's security requirements","I need to adjust approval rules dynamically without restarting Claude Desktop"],"best_for":["organizations with mature security policies and risk frameworks","teams managing large numbers of MCP tools with varying risk profiles","security teams implementing zero-trust tool governance models"],"limitations":["Risk classification is static based on tool metadata — cannot adapt to runtime context or parameter values","No machine learning-based anomaly detection — cannot identify unusual tool usage patterns","Rule engine is synchronous — complex rule evaluation may add latency to tool invocation","No built-in policy versioning — rule changes are applied immediately without rollback capability"],"requires":["Tool definitions with metadata (description, parameters, side effects)","Risk policy configuration file (JSON or YAML format)","Node.js 18+ for rule engine execution"],"input_types":["tool definitions with metadata","risk policy rules (declarative format)","tool invocation context (parameters, user, session)"],"output_types":["risk classification (low/medium/high/critical)","required approval workflow (auto-approve, single-approval, multi-level)","risk score (numeric 0-100)"],"categories":["safety-moderation","planning-reasoning"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"npm_npm-mcptoolgateclient__cap_6","uri":"capability://safety.moderation.multi.user.approval.coordination.and.role.based.access.control","name":"multi-user approval coordination and role-based access control","description":"Enables multiple users to participate in approval workflows with role-based access control (RBAC) and approval authority delegation. Implements role definitions (approver, reviewer, auditor) with granular permissions (approve high-risk tools, view audit logs, modify policies). Supports approval routing rules that assign pending approvals to specific users or groups based on tool category or risk level. Tracks approval authority and enforces approval quorum for critical operations.","intents":["I want to distribute approval authority across my team based on their roles and expertise","I need to ensure critical tools require approval from multiple authorized users","I want auditors to have read-only access to approval history without approval authority","I need to delegate approval authority temporarily to cover for absent team members"],"best_for":["teams with multiple stakeholders and distributed approval authority","organizations requiring separation of duties for compliance (approver vs auditor)","enterprises with complex organizational structures and approval hierarchies"],"limitations":["No built-in identity provider integration — requires manual user management or external LDAP/SAML setup","Approval quorum logic is simple majority — no weighted voting or veto rights","No approval delegation with time limits — delegated authority persists until manually revoked","Role definitions are static — no dynamic role assignment based on context or time-based rules"],"requires":["User identity management system (local, LDAP, SAML, or OAuth provider)","Role configuration file defining permissions per role","Multi-user approval coordination backend (local or cloud-based)"],"input_types":["user identity and role assignments","approval routing rules (tool category → approver role mapping)","approval quorum requirements (number of approvals needed)"],"output_types":["approval assignments (pending approvals assigned to specific users)","role-based access control decisions (user can/cannot approve, view logs, modify policies)","approval quorum status (X of Y approvals received)"],"categories":["safety-moderation","automation-workflow"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"npm_npm-mcptoolgateclient__cap_7","uri":"capability://data.processing.analysis.tool.parameter.validation.and.schema.enforcement","name":"tool parameter validation and schema enforcement","description":"Validates all tool invocation parameters against their declared JSON Schema definitions before approval or execution. Implements schema validation with detailed error reporting for type mismatches, missing required fields, and constraint violations. Supports custom validation rules and parameter sanitization logic. Prevents execution of tool calls with invalid parameters, protecting downstream systems from malformed requests.","intents":["I want to ensure Claude only sends valid parameters to tools, preventing downstream errors","I need to reject tool calls with missing required parameters before they execute","I want to enforce parameter constraints (min/max values, allowed enum values, regex patterns)","I need to sanitize parameters to prevent injection attacks or malicious payloads"],"best_for":["teams integrating Claude with production APIs and databases that require strict parameter validation","security teams implementing input validation as a defense layer against prompt injection","developers building robust AI tool integrations with error handling"],"limitations":["Validation is schema-based only — cannot validate semantic correctness (e.g., valid email format beyond regex)","No built-in parameter transformation — can only validate and reject, not normalize or coerce types","Custom validation rules require code changes — no declarative custom validation syntax","Validation errors are reported but not automatically corrected — Claude must retry with corrected parameters"],"requires":["Tool definitions with JSON Schema parameter specifications","JSON Schema validator library (built-in or external)","Node.js 18+"],"input_types":["tool invocation parameters (any JSON-serializable type)","JSON Schema definitions for tool parameters","custom validation rules (optional)"],"output_types":["validation result (valid/invalid)","detailed error messages for validation failures","sanitized parameters (if sanitization rules applied)"],"categories":["data-processing-analysis","safety-moderation"],"confidence":0.5,"matches":0,"success_rate":0}],"trust":{"score":32,"verified":false,"data_access_risk":"high","permissions":["Claude Desktop 0.1.0 or later with MCP support","Node.js 18+ runtime for the client","MCP server compatible with tool definition schema","Network connectivity between Claude Desktop and approval gateway","MCP protocol 1.0 or later","Claude Desktop with MCP client support","Access to MCP tool definition schemas","Persistent file system or database for log storage","Node.js 18+ with file system access","Sufficient disk space for audit log retention policy"],"failure_modes":["Approval latency adds synchronous blocking time to tool execution — not suitable for real-time latency-critical workflows","Requires human availability for approval — unattended/autonomous execution is blocked until approval is provided","No built-in timeout mechanism for pending approvals — long-running approval requests may cause tool call timeouts","Single approval workflow pattern — no role-based approval routing or multi-level escalation built-in","Interception adds ~50-100ms overhead per tool call due to message parsing and enrichment","No built-in parameter transformation — only inspection and logging, not modification","Limited to tools exposed via MCP protocol — cannot intercept direct function calls or non-MCP integrations","Requires Claude Desktop to support MCP protocol version 1.0+ — older versions may not expose sufficient tool metadata","No built-in log rotation or retention policies — requires external log management for long-term storage","Audit logs stored locally by default — no built-in cloud sync or distributed logging","builder identity is not verified yet","no observed match outcomes yet"],"rank_breakdown":{"adoption":0.05,"quality":0.41,"ecosystem":0.5000000000000001,"match_graph":0.25,"freshness":0.6,"weights":{"adoption":0.25,"quality":0.25,"ecosystem":0.15,"match_graph":0.23,"freshness":0.12}},"observed_outcomes":{"matches":0,"success_rate":0,"avg_confidence":0,"top_intents":[],"last_matched_at":null},"maintenance":{"status":"active","updated_at":"2026-05-24T12:16:23.904Z","last_scraped_at":"2026-04-22T08:11:33.792Z","last_commit":null},"community":{"stars":null,"forks":null,"weekly_downloads":null,"model_downloads":null,"model_likes":null}},"distribution":{"claim_url":"https://unfragile.ai/submit?claim=npm-mcptoolgateclient","compare_url":"https://unfragile.ai/compare?artifact=npm-mcptoolgateclient"}},"signature":"J1PucWX8Yojoy0hKfcPEPaiMlwc4Cvggegy+tAm0ltaXv4RiosojSVeX8GYiVDheYJGrCKfMSARQ1jqasD/pDA==","signedAt":"2026-06-20T10:10:16.839Z","signedBy":"unfragile.ai","version":1},"_links":{"self":"https://unfragile.ai/api/v1/passport/npm-mcptoolgateclient","artifact":"https://unfragile.ai/npm-mcptoolgateclient","verify":"https://unfragile.ai/api/v1/verify?slug=npm-mcptoolgateclient","publicKey":"https://unfragile.ai/api/v1/trust-passport-public-key","spec":"https://unfragile.ai/trust","schema":"https://unfragile.ai/schema.json","docs":"https://unfragile.ai/docs"}}