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Supports both synchronous and asynchronous middleware.","intents":["I want to add logging and monitoring to all tool invocations without modifying tool code","I need to enforce authentication or authorization policies across all MCP operations","I want to transform request/response formats or add custom headers/metadata"],"best_for":["Teams building production MCP servers with observability requirements","Organizations needing centralized security/policy enforcement","Developers extending MCP servers with cross-cutting concerns"],"limitations":["Middleware execution order is sequential — no parallel middleware support","Middleware errors can break the request chain — requires careful error handling","No built-in middleware for common patterns (auth, logging) — teams must implement custom"],"requires":["Understanding of middleware/chain-of-responsibility pattern","Async/await support for async middleware"],"input_types":["MCP request messages","Execution context"],"output_types":["Modified requests/responses","Middleware metadata"],"categories":["automation-workflow","safety-moderation"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"npm-transcend-io-mcp-server-core__cap_4","uri":"capability://safety.moderation.error.handling.and.standardized.error.responses","name":"error handling and standardized error responses","description":"Implements MCP-compliant error handling with standardized error codes, messages, and response formats. 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Supports error categorization (validation errors, not-found, permission denied, internal errors) with appropriate HTTP-like status codes.","intents":["I want tool execution errors to be returned to clients in a standard format they can handle","I need to distinguish between client errors (bad input) and server errors (internal failures)","I want to provide meaningful error messages without exposing internal implementation details"],"best_for":["Teams building robust MCP servers with proper error handling","Developers building MCP clients that need to handle errors gracefully","Organizations standardizing error responses across multiple MCP servers"],"limitations":["Error categorization is limited to standard MCP error types — custom error types require mapping","Stack traces are not included in error responses by default — requires custom middleware to add","No built-in error recovery or retry logic"],"requires":["MCP error specification understanding","Proper exception handling in tool implementations"],"input_types":["Application exceptions","Validation failures","Tool execution errors"],"output_types":["MCP error responses","Error codes and messages"],"categories":["safety-moderation","automation-workflow"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"npm-transcend-io-mcp-server-core__cap_5","uri":"capability://code.generation.editing.type.safe.tool.and.resource.definitions.with.typescript","name":"type-safe tool and resource definitions with typescript","description":"Leverages TypeScript's type system to provide compile-time safety for tool parameters, return types, and resource content. Tool definitions are written as TypeScript functions with full type annotations, and the framework automatically generates JSON Schema from these types and validates runtime values against the schema. Enables IDE autocomplete and type checking for tool implementations.","intents":["I want compile-time type checking for tool parameters and return values","I need to avoid manually writing JSON Schema — let TypeScript types generate it","I want IDE autocomplete when implementing tools"],"best_for":["TypeScript-first teams building MCP servers","Developers who want to catch type errors at compile time","Teams using strict TypeScript configurations"],"limitations":["TypeScript-only — no Python or Go support","Complex types (unions, generics) may not map cleanly to JSON Schema","Type inference requires explicit type annotations — implicit types won't generate schemas"],"requires":["TypeScript 4.5+","TypeScript compiler in build pipeline","Type definitions for all tool parameters"],"input_types":["TypeScript function signatures","Type annotations"],"output_types":["JSON Schema","Type-checked implementations"],"categories":["code-generation-editing","tool-use-integration"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"npm-transcend-io-mcp-server-core__cap_6","uri":"capability://automation.workflow.server.initialization.and.capability.negotiation","name":"server initialization and capability negotiation","description":"Handles MCP server initialization handshake, including protocol version negotiation, capability declaration, and client/server metadata exchange. Implements the MCP initialization sequence where the server declares which tools, resources, and prompts it supports, and the client declares its capabilities. 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Supports pluggable logger implementations and structured logging with context propagation. Enables teams to integrate with observability platforms (DataDog, New Relic, etc.) by providing hooks for metrics, traces, and logs.","intents":["I want to log all tool invocations with context (caller, parameters, duration)","I need to integrate my MCP server with observability platforms for monitoring","I want structured logs that can be parsed and analyzed by log aggregation tools"],"best_for":["Teams running MCP servers in production with observability requirements","Developers needing to debug tool invocation issues","Organizations using centralized logging platforms"],"limitations":["No built-in logger implementation — requires integration with external logging libraries","Logging overhead is not optimized — high-volume logging may impact performance","No built-in metrics collection — requires custom middleware for metrics"],"requires":["Logging library (winston, pino, etc.)","Structured logging format (JSON recommended)"],"input_types":["Tool invocations","Server events","Error conditions"],"output_types":["Structured logs","Observability events"],"categories":["automation-workflow","safety-moderation"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"npm-transcend-io-mcp-server-core__cap_9","uri":"capability://text.generation.language.prompt.definition.and.management","name":"prompt definition and management","description":"Enables registration and management of reusable prompts that MCP clients can discover and use. Prompts are defined with templates, arguments, and descriptions, allowing clients to request specific prompts and provide argument values. Supports prompt versioning and metadata. Handles prompt discovery and argument validation.","intents":["I want to expose reusable prompt templates that LLM clients can discover and use","I need to provide prompts with configurable arguments that clients can customize","I want to version prompts and manage prompt lifecycle"],"best_for":["Teams building prompt-centric MCP servers","Developers creating reusable prompt libraries","Organizations standardizing on prompt templates"],"limitations":["Prompt templating is basic — no support for complex conditional logic","No built-in prompt versioning — requires manual version management","Prompt arguments are string-based — no type validation"],"requires":["MCP SDK with prompt support","Prompt template definitions"],"input_types":["Prompt templates","Prompt metadata","Argument definitions"],"output_types":["Prompt listings","Rendered prompts with arguments"],"categories":["text-generation-language","tool-use-integration"],"confidence":0.5,"matches":0,"success_rate":0}],"trust":{"score":40,"verified":false,"data_access_risk":"high","permissions":["Node.js 16+","TypeScript 4.5+ (for type definitions)","@modelcontextprotocol/sdk or compatible MCP SDK","TypeScript 4.5+","JSON Schema compatible definitions","MCP SDK with tool support","MCP SDK with resource support","Content type definitions (MIME types)","URI template syntax understanding","Understanding of middleware/chain-of-responsibility pattern"],"failure_modes":["Tightly coupled to Transcend's architectural patterns — may require refactoring if using alternative MCP implementations","No built-in persistence layer for server state — requires external storage for stateful operations","Limited to TypeScript/Node.js runtime — no Python or Go implementations provided","Schema validation is JSON Schema only — no support for custom validation logic without extending the framework","Tool execution is synchronous by default — async operations require explicit Promise handling","No built-in rate limiting or quota management per tool","Resources are read-only — no built-in write/update mechanisms","Streaming assumes client supports MCP streaming protocol — older clients may not work","No built-in caching layer — each resource request re-reads from source","Middleware execution order is sequential — no parallel middleware support","builder identity is not verified yet","no observed match outcomes yet"],"rank_breakdown":{"adoption":0.5614907687885283,"quality":0.3,"ecosystem":0.39999999999999997,"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":"2026-05-24T12:16:23.902Z","last_scraped_at":"2026-04-22T08:08:13.650Z","last_commit":null},"community":{"stars":null,"forks":null,"weekly_downloads":32094,"model_downloads":null,"model_likes":null}},"distribution":{"claim_url":"https://unfragile.ai/submit?claim=transcend-io-mcp-server-core","compare_url":"https://unfragile.ai/compare?artifact=transcend-io-mcp-server-core"}},"signature":"IsNBRabqDE16qnY4+0p3DnivjGjehCzONO3/z8B5Awdr+IDRth9YTWefWQpMYLwh0CganQ6QUoUVfk9940DgDA==","signedAt":"2026-06-20T14:09:11.006Z","signedBy":"unfragile.ai","version":1},"_links":{"self":"https://unfragile.ai/api/v1/passport/transcend-io-mcp-server-core","artifact":"https://unfragile.ai/transcend-io-mcp-server-core","verify":"https://unfragile.ai/api/v1/verify?slug=transcend-io-mcp-server-core","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"}}