Tool abstraction layer for the [Skill Agent](https://github.com/clebermasters/faster-agent-rs) framework.
Provides the `ToolRegistry`, `ToolBox` enum, and built-in tools: `bash`, `read`, `write`, and `run_skill` (executes any skill by ID).
See the [main repository](https://github.com/clebermasters/faster-agent-rs) for full documentation.