Scored across 3 tools
Each tool serves a distinct phase: site.context manages browser targets, site.discover retrieves operation schemas, and site.execute performs operations. The descriptions clearly delineate their roles, leaving little room for confusion.
All tools use a consistent 'site.' prefix and lowercase dot notation, but site.context is a noun while the others are verbs, a minor deviation from a uniform verb-based pattern.
Three tools are well-scoped for a meta-execution model: one to establish context, one to discover available operations, and one to execute them. This minimal surface avoids redundancy and each tool earns its place.
The set covers the core workflow of target selection, schema discovery, and execution, but lacks explicit tools for tab management (e.g., closing tabs) or direct page state inspection, which are minor gaps agents might work around via discovered operations.