Compare

LLMs as tools, not drivers.

JacqOS replaces autonomous observe-decide-act loops with candidate and proposal relays gated by ontology rules and shared derived state.

Where this approach helps

Flexible exploration

ReAct loops are effective when the goal is broad tool exploration with relatively soft failure costs.

Rapid experimentation

Teams can learn quickly when they do not yet need strong replay, audit, or authority boundaries.

Where it breaks down

The model becomes the driver

Once the loop owns observation, planning, and action, it is hard to separate good reasoning from dangerous authority.

Hard to inspect decisions cleanly

The causal path is often smeared across prompts, tool calls, and mutable scratchpads.

Multi-agent coordination becomes brittle

Each agent develops its own working story about the world instead of reading one durable truth surface.

What JacqOS changes

Make authority, truth, and replay first-class.

The core difference is not cosmetic. JacqOS changes the system's authority model so the LLM can participate without becoming the unbounded driver of truth and action.

Candidate facts for fallible sensing

Model interpretations of the world stay provisional until the ontology accepts them.

Proposal relations for fallible decisions

Model-generated actions stay proposals until explicit domain rules ratify them.

Effects close the loop through observations

Real-world execution comes back into the system as new observations, keeping truth append-only and replayable.

Choose ReAct when

You want a flexible reasoning loop and the cost of a wrong action is low enough to absorb.

Choose JacqOS when

You need the model inside the system, but you do not want the model to be the system's authority boundary.

Next step

Use a proof surface to make the comparison real.

Category language is useful, but conviction usually comes from a specific example or evaluation path. Take the comparison into something inspectable.