@data360/tool-types
FrameworkFreeTypeScript types and runtime guards for Data360 MCP tool JSON payloads.
Capabilities5 decomposed
mcp tool payload type validation with typescript
Medium confidenceProvides TypeScript type definitions and runtime validation guards for Data360 MCP (Model Context Protocol) tool JSON payloads. Uses zod or similar schema validation libraries to enforce structural correctness at both compile-time (via TypeScript) and runtime (via guard functions), ensuring tool definitions conform to MCP specification before transmission to LLM clients.
Purpose-built for Data360 MCP tool payloads specifically, rather than generic MCP validation — encodes World Bank data tool conventions and constraints directly into type definitions and guards
More specialized than generic JSON schema validators because it understands Data360-specific tool semantics and provides pre-built guards for common World Bank data operations
runtime guard functions for mcp tool payload safety
Medium confidenceExports TypeScript guard functions (type predicates) that perform runtime validation of MCP tool payloads at execution time. These guards check payload structure, required fields, and type constraints using discriminated unions and exhaustive checking patterns, enabling safe narrowing of tool objects before passing them to LLM clients or executing tool logic.
Provides discriminated union-based guards that leverage TypeScript's type narrowing to create type-safe execution paths, rather than generic schema validation that requires manual type assertions
More ergonomic than manual instanceof checks or schema validation because guards integrate directly with TypeScript's type system, enabling IDE autocomplete after validation
data360-specific tool payload schema definitions
Medium confidenceEncodes the complete schema for Data360 MCP tool payloads as TypeScript interfaces and types, including World Bank data tool conventions such as parameter types, response formats, and metadata structures. These schemas serve as the source of truth for tool definition structure across Data360 deployments, enabling consistent tool implementation and validation.
Encodes World Bank data tool conventions directly into TypeScript types rather than generic MCP schemas, capturing domain-specific constraints like parameter naming, response pagination, and metadata requirements
More domain-aware than generic MCP type libraries because it reflects actual Data360 tool patterns and World Bank data API conventions, reducing friction for teams building within the ecosystem
typescript type inference for tool payload construction
Medium confidenceEnables TypeScript's type inference engine to validate tool payload construction at compile-time by providing strongly-typed interfaces and builder patterns. As developers construct tool payloads, TypeScript provides real-time feedback on missing or incorrect fields, preventing invalid tool definitions from being compiled or deployed.
Leverages TypeScript's structural typing and strict mode to provide compile-time validation of tool payloads, catching errors before runtime rather than relying on schema validation
More developer-friendly than runtime schema validation because errors appear in the IDE during development, with autocomplete guidance, rather than as runtime exceptions in production
mcp protocol compliance validation
Medium confidenceValidates that tool payloads conform to the Model Context Protocol specification, including required fields, field types, and protocol-level constraints. This ensures that tools built with @data360/tool-types can be safely transmitted to and executed by MCP-compliant clients and servers without protocol violations.
Validates against the MCP specification directly rather than generic JSON schema, ensuring tools are compatible with the specific protocol version and constraints that LLM clients expect
More precise than generic schema validation because it understands MCP-specific constraints like tool naming conventions, parameter requirements, and response format expectations
Capabilities are decomposed by AI analysis. Each maps to specific user intents and improves with match feedback.
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Best For
- ✓TypeScript developers building MCP servers for Data360 integrations
- ✓Teams deploying World Bank data tools requiring strict schema compliance
- ✓LLM application builders who need compile-time safety for tool definitions
- ✓MCP server implementations handling dynamic or user-provided tool definitions
- ✓Production systems requiring strict validation before tool invocation
- ✓Teams building defensive LLM applications that cannot trust tool payload sources
- ✓Data360 platform maintainers defining tool standards
- ✓Teams implementing multiple World Bank data tools requiring consistency
Known Limitations
- ⚠TypeScript-only — no Python, Go, or other language bindings provided
- ⚠Requires understanding of MCP specification and Data360 tool payload structure
- ⚠Runtime validation adds overhead for every tool invocation — no caching of validation results
- ⚠No built-in migration path if MCP specification evolves — manual type updates required
- ⚠Guard functions must be called explicitly — no automatic validation middleware provided
- ⚠Error messages depend on implementation quality — may not pinpoint exact validation failure
Requirements
Input / Output
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Package Details
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TypeScript types and runtime guards for Data360 MCP tool JSON payloads.
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