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vinkius-labs/mcp-fusion

v3.1.16 Breaking

This release includes breaking changes for platform teams planning a safe upgrade.

Published 3mo MCP Developer Tools
✓ No known CVEs patched
Read the diff → Tool health → What is this tool? →

✓ No known CVEs patched in this version

Topics

mcp mcp-framework mcp-server model-context-protocol

Summary

AI summary

Fixed prompt pagination cursor handling and ZodNumber empty-string coercion, preventing crashes from file watcher errors.

Full changelog

Fixed

  • Empty-string coercion for ZodNumber fields in prompt args now correctly rejects instead of silently producing 0
  • Prompt pagination cursor gracefully handles removed entries between pages (no more restart from page 1)
  • isToolResponse type guard now verifies content element structure, preventing domain objects from bypassing MVA pipeline
  • Flat-mode tool dispatch reuses compiled exposition instead of double-compiling per call
  • CJS hot-reload now propagates through transitive dependency chains
  • File watcher error handler prevents unhandled filesystem errors from crashing the process
  • Exported resetXStateCache() for test environments to re-trigger xstate dynamic import

28 new regression tests | 4573 total tests passing | 0 regressions

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About vinkius-labs/mcp-fusion

A TypeScript framework for building production-ready MCP servers with automatic tool discovery, multi-transport support (stdio/SSE/HTTP), built-in validation, and zero-config setup.

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Related context

Earlier breaking changes

  • v4.0.0 All packages now published under the `@mcpfusion` npm scope.
  • v4.0.0 GitHub repository renamed to vinkius-labs/mcpfusion; npm packages under @mcpfusion scope.
  • v4.0.0 All source code, documentation, CLI output, workflows, and npm packages now use the @mcpfusion scope.

Beta — feedback welcome: [email protected]