Struct PluginInstance 

pub struct PluginInstance {
    pub plugin: Arc<dyn Plugin>,
    pub handlers: Vec<(&'static str, Arc<dyn AnyHookHandler>)>,
}

The two types a host needs to accept a plugin it did not compile in: PolicyEngine::register_factory takes a Box<dyn PluginFactory>, and PluginInstance is what that factory returns.

Surfaced here so a host embedding the engine can name them without reaching through to praxis_policy_core. Plugin authors get the same two names from prelude. A created plugin instance — the plugin and its type-erased handlers.

Each handler is paired with the hook name it handles. A plugin that implements multiple hook types (e.g., ToolPreInvoke and ToolPostInvoke) returns one entry per hook.

Fields

plugin: Arc<dyn Plugin>

The plugin implementation.

handlers: Vec<(&'static str, Arc<dyn AnyHookHandler>)>

Type-erased handlers paired with their hook names. Each entry maps a hook name to the adapter for that hook type.