Every model-to-tool integration used to be bespoke
Before a shared protocol, every model-to-database, model-to-API, or model-to-file-system connection was a one-off integration with its own auth, its own schema, its own failure modes. The Model Context Protocol standardizes how a model discovers and calls tools — the same way REST standardized how services talk to each other.
Reference architectures
MCP Servers & Clients
Exposing internal systems as MCP servers with typed tool schemas, and connecting them to any MCP-compatible client.
Scoped Tool Permissions
Least-privilege tool access per agent session, with explicit human approval for write or destructive actions.
Multi-Agent Orchestration
Planner/worker and supervisor patterns for coordinating multiple specialized agents on a shared task.
Agent Action Audit Trail
Immutable logging of every tool call an agent makes, so autonomous actions are as reviewable as a change ticket.
Circuit Breakers
Rate limits, budget caps, and kill-switches to bound what an autonomous loop can do before a human is notified.
Tool & Connector Registry
A central catalog of approved MCP servers and connectors, so teams reuse vetted integrations instead of re-building them.
Before an agent goes into production
- Every tool the agent can call has a documented blast radius if misused.
- Actions with side effects (send, delete, pay, publish) require explicit confirmation.
- The agent's context window boundary is defined — it cannot silently pull data it isn't scoped to see.
- There is a single place to audit what an agent did, when, and why.
— Viswa