TensorFold PR fixes MCP servers blocked by macOS sandbox over dyld framework loading
AIFlow_ML · x · 2026-11-15
Developer AIFlowML submitted PR #3423 to TensorFold fixing bundled MCP servers aborting before the MCP handshake inside macOS apps.
- Root cause: the sandbox permits Contents/MacOS, but dyld loading @rpath dylibs also needs the sibling Contents/Frameworks directory.
- Fix: let the selected executable read its own app's Contents (bundled frameworks and resources), keeping the bundle read-only and other app bundles inaccessible.
- Regression test: builds a tiny native app bundle with an @rpath dylib and launches it through the real MCP sandbox; negative controls require an actual permission-denied result so timeouts can't false-pass.
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