Wrong step, wrong tool? Impossible.
Finite state machines that control which MCP server tools the agent can see. Tools outside the current workflow state are removed from the API entirely. No prompt instruction. No guardrail. The tool does not exist. Enforced by the Vinkius.
Tool visibility governed by workflow state.
Define workflow states. Bind tools to each one. When the state advances, tools appear and disappear from the MCP server. The agent physically cannot call a tool that is not in the current state.
state → tools
Each workflow state declares which tools are visible. data_collection exposes db_query and api_fetch. analysis exposes compute_stats and generate_chart. No overlap unless you define it.
advance()
State transitions are explicit API calls. The agent requests a transition, the FSM validates preconditions, and the tool list updates atomically. No partial states.
state_log
Every state transition is logged with timestamp, actor, previous state, and new state. Full audit trail of which tools were available at every point in the workflow.
Hard constraint. Not a suggestion.
Prompt-based guardrails ask the model to behave. FSM gating removes the option entirely. Tools not bound to the current state are excluded from the MCP server's tool list - the model never sees them, never hallucinates them, never calls them.
Declarative Configuration
Define workflows in YAML or through the dashboard. States, transitions, and tool bindings are version-controlled alongside your MCP server configuration.
Persistent State
Workflow state survives disconnections. If an agent drops mid-workflow, the state is preserved in Redis. Reconnecting resumes from exactly where it left off.
Session Isolation
Each agent session gets its own FSM instance. Multiple agents can execute the same workflow independently without state interference.
Real-Time Enforcement
Tool list updates propagate in under 50ms via Redis pub/sub. The moment a state changes, the MCP server reflects the new tool set. Zero drift.
AI agents never stop.
MCP Servers need Vinkius.
Autonomous agents don't sleep. Every tool call hits a hardened isolation perimeter - cryptographic lockfiles, zero-trust RBAC, and hard execution quotas enforced at the payload level. No wrappers. Titanium-grade governance for autonomous compute.