Guard Yuzu's stable C plugin ABI, descriptor contract, and loader compatibility. Use when changing `sdk/include/yuzu/plugin.h`, `plugin.hpp`, plugin descriptors, `agents/core/src/plugin_loader.cpp`, built-in plugins, or plugin action surfaces that affect compatibility.
Installation
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Guard Yuzu's stable C plugin ABI, descriptor contract, and loader compatibility. Use when changing `sdk/include/yuzu/plugin.h`, `plugin.hpp`, plugin descriptors, `agents/core/src/plugin_loader.cpp`, built-in plugins, or plugin action surfaces that affect compatibility.
Yuzu Plugin ABI
Treat The Boundary As Hard
Treat sdk/include/yuzu/plugin.h as the stable C ABI.
Do not reorder or remove struct fields.
Append new struct fields only at the end.
Do not let C++ types, exceptions, or STL containers cross the C boundary.
Bump YUZU_PLUGIN_ABI_VERSION when the binary contract changes.
Keep The Runtime Contract Aligned
Keep plugin.hpp convenience wrappers aligned with plugin.h.
Keep agents/core/src/plugin_loader.cpp compatibility checks aligned with the declared ABI range.
Preserve yuzu_plugin_descriptor() expectations and exported symbol names.
Watch Action Surface Changes
If a plugin adds, removes, or renames actions, inspect corresponding instruction definitions under content/definitions/.
Keep descriptor strings, action arrays, and tests consistent.
Recheck plugin loader diagnostics if the descriptor layout or SDK version fields change.
Validate
Build the agent targets.
Run descriptor and loader coverage first, especially tests/unit/test_new_plugins.cpp and tests/unit/test_plugin_loader.cpp.
Run the narrowest relevant agent suite before expanding outward.
Invoke Sibling Skills
Invoke $yuzu-meson for build-graph changes.
Invoke $yuzu-windows-msvc if the change affects Windows export or loading behavior.
