Signett
Reliable, agent-ready web interfaces through native WebMCP.
Discover and call capabilities through native WebMCP.
Validate, authorize, coordinate, verify, and observe.
Keep identity, policy, application state, and interface changes.
Problem
Web interfaces were designed to be seen and operated by people. Agents can attempt to navigate those interfaces visually, but the result is often brittle: capabilities are hard to discover, consequential actions are difficult to retry safely, and success can be mistaken for a reassuring response rather than a verified outcome.
Approach
Signett turns capabilities already present in a website into a native WebMCP interface. It keeps the agent responsible for planning and the website responsible for identity, policy, business logic, data, and UI state, while adding the execution semantics needed to make that boundary dependable.
System
The open-source TypeScript toolkit combines runtime validation, trusted application context, authorization, confirmation, idempotency, operation journals, outcome verification, privacy-conscious telemetry, and deterministic testing. Each tool opts into only the controls warranted by its effects, keeping simple reads lightweight while giving consequential operations stronger guarantees.