vinkius-labs/mcp-fusion

v3.1.26 Bugfix

This release fixes issues for SREs watching stability and regressions.

Published 3mo MCP Developer Tools

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✓ No known CVEs patched in this version

Topics

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

Summary

AI summary

Fixed bug where PromptRegistry prependSystem() and appendSystem() emitted role 'assistant' instead of 'user'.

Full changelog

Fixed

Bug #109 — \FluentToolBuilder\ now rejects tool names with more than one dot-separated segment (e.g. 'admin.users.list') at build time
Bug #110 — \ContextDerivation\ (\defineMiddleware) now blocks \constructor\ and \prototype\ keys alongside _proto_\
Bug #111 — \PromptRegistry\ \prependSystem()\ and \ppendSystem()\ now emit
ole: 'user'\ instead of 'assistant'\
Bug #112 — \GroupedToolBuilder.action()\ now throws on duplicate action names
Bug #113 — \FluentPromptBuilder.tags()\ now appends via \push(...tags)\ instead of replacing the array
Bug #114 — \StateSyncBuilder.layer\ getter now caches the built instance and invalidates on mutation

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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

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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.