sync from monorepo @ 2452e92e

crates/dirigent_tools/src/tool/mod.rs

@@ -0,0 +1,14 @@
+//! Tool trait, registry-facing types, and per-call context.
+
+pub mod kinds;
+pub mod events;
+pub mod context;
+pub mod erase;
+pub mod macros;
+
+pub use kinds::{ClientKind, ProtocolKind, ToolKind};
+pub use events::{
+    PermissionRequestId, ToolEvent, ToolEventSink, ToolLocation, ToolResultContent,
+};
+pub use context::ToolContext;
+pub use erase::{AnyTool, AnyToolInput, Erased, Tool, ToolInput};