tier property
Capability tier consulted by the approval gate (see
lib/src/approval/): read-only tools declare ApprovalTier.read,
workspace-mutating tools ApprovalTier.write, and code-executing tools
ApprovalTier.exec. The default — ApprovalTier.exec — is the safe
choice for unknown custom tools (omp semantics).
Implementation
final ApprovalTier tier;