Anda
A Rust framework for building composable AI agent runtimes that combine models, tools, memory and other agents into a single, type-safe, asynchronous runtime.
Anda lets developers register agents and tools through stable traits and function definitions, route model requests by capability labels such as primary, pro, flash or lite across provider-specific adapters, call local or remote functions, and isolate context state per agent or tool. Its runner handles iterative model turns, tool and agent calls, usage accounting, cancellation and compact continuation handoffs for long-running sessions, and subagents add root-scoped identity, bounded messaging and shared budgets.
A scoped execution context provides isolated state, cache, object storage, HTTP and signed calls, and child contexts per agent or tool. Optional extensions add conversation storage, memory tools, filesystem access, shell execution, notes, todos and file-backed skills, with bounded output and optional process sandboxing on macOS and Linux for coding agents. It is released under the Apache 2.0 license.