Type Alias SharedSandboxRoots 

pub type SharedSandboxRoots = Arc<RwLock<Vec<(PathBuf, AccessTier)>>>;

Shared, session-scoped sandbox roots. This is the runtime-mutable companion to the static extra_roots baked into each tool at build time: the TUI’s /add-dir command (and, in future, an interactive out-of-scope-read grant) appends entries here, and every structured filesystem tool consults the snapshot in resolve_within_any on each call so newly added roots take effect immediately — without rebuilding the agent runtime.

Uses std::sync::RwLock (not tokio) because tools only take a brief read snapshot inside execute; no .await is held across the guard.

Aliased Type

pub struct SharedSandboxRoots { /* private fields */ }