framework harness
Agentic Frameworks
VisIQ ships a harness for the frameworks agents are actually built on: LangChain, OpenClaw, Vercel AI SDK, Mastra, OpenAI Agents SDK, LlamaIndex.TS, and VoltAgent. One call where the agent is constructed puts every tool call and every retrieval in front of policy before execution.
One line where the agent is built
For LangChain, Vercel AI SDK, Mastra, OpenAI Agents SDK, LlamaIndex.TS, and VoltAgent, governance is a wrapper: call visiq() once on the executor at construction time and the harness instruments the agent's tools and retrievers in place. For OpenClaw it is a native plugin that registers hooks on the daemon and covers built-in and MCP-loaded tools through the same seam.
There is no proxy to route through and no rewrite of the agent. The framework keeps doing what it does; the harness sits on the seams the framework already exposes.
What the harness intercepts
Every tool call is observed with its full arguments before it executes, and a deny stops it there, pre-execution, with hard-stop semantics. Sensitive actions can route to a human instead of resolving automatically.
Every retrieval is intercepted between the source and the model. Policy can drop a document entirely or rewrite it to mask secrets and personal identifiers, and the masked version is what enters the model's context.
Decisions are local
The harness evaluates in-process against one locally cached rule bundle, refreshed in the background. Measured overhead is under a millisecond per tool call and per document; a cold fetch against a fresh bundle is the exception, and even that is tens of milliseconds.
The only decision that waits on the network is the one that should: a human approval.
Failure is a mode you choose
A blocked call does not crash the agent. The harness returns the denial as a structured tool result, so the agent reads it and reasons over it on its next turn.
If the harness itself cannot evaluate, agent-side behavior defaults to fail-open with loud telemetry, and teams that want the stricter posture opt into fail-closed. A policy deny enforces in either mode. The per-framework capability grid, with what each harness observes, blocks, and redacts, is published on the agent security matrix.