Mechanism

Confidence-governed embodied execution applies the confidence governor to an embodied agent: an agent that controls physical actuators, robotic systems, or other mechanisms that produce effects in the physical world. The confidence governor is the same structural subsystem disclosed for computational agents. It continuously evaluates whether the conditions for execution remain satisfied and withdraws execution authorization when those conditions are no longer met. For an embodied agent the governor is not advisory; it is a hard gate. When the governor determines that execution authorization should be withdrawn, execution ceases, and the agent cannot override the withdrawal through self-assessment, affective escalation, or policy reinterpretation.

Embodied execution introduces additional dimensions to the confidence computation that are not present in purely computational agents: physical safety constraints, mechanical wear and failure risk, environmental unpredictability in the physical domain, and the heightened irreversibility of physical actions. A physical action, once taken, cannot be retracted the way a computational mutation can be reversed, so the confidence computation that gates a physical action carries a correspondingly heavier consequence.

Sensor Reliability as a Confidence Input

The confidence computation for embodied agents incorporates sensor reliability inputs: measures of the accuracy and reliability of the agent's sensory systems, including visual sensors, proximity sensors, force-torque sensors, and proprioceptive feedback. When sensor reliability degrades, due to environmental interference, sensor fouling, calibration drift, or hardware degradation, the agent's confidence in its ability to execute physical actions safely decreases.

The sensor reliability contribution ensures that an embodied agent does not attempt physical actions based on unreliable sensory data. This input joins the agent state and task state inputs that the confidence evaluation function already consumes, including capability sufficiency, resource availability, internal integrity state, affective modulation state, and the experiential record in the memory field. Degraded perception lowers confidence even when the agent's capabilities and resources are otherwise sufficient, because the agent cannot trust the state estimate on which a physical action would depend.

The Physical Safety Floor

The confidence governor for embodied agents implements a physical safety floor: a minimum confidence threshold below which no physical action is permitted regardless of task urgency, intent priority, or external command. The physical safety floor is set higher than the general execution authorization threshold. It cannot be overridden by the agent's own deliberation or by delegation commands from parent agents.

The physical safety floor reflects the architectural recognition that physical actions carry risks, to the agent, to nearby persons, and to the environment, that are categorically more severe than the risks of computational actions, and that the confidence threshold for physical action must accordingly be more conservative. Where a computational agent gates execution at the general authorization threshold, an embodied agent must clear a stricter bar before any actuator may move.

Transition to a Safe Physical State

When an embodied agent's confidence drops below the physical safety floor, the agent transitions to a safe physical state: a predefined configuration in which all actuators are brought to a controlled stop, all end effectors are moved to safe positions, and the agent's physical presence is made inert. The transition to the safe physical state is immediate and overrides any in-progress physical action.

The transition is a structural prohibition rather than a flag the agent may choose to respect. Because execution authorization gating decouples the execution subsystem's output pathway when authorization is withdrawn, the embodied agent cannot produce physical effects regardless of its internal state or the urgency of its intent. The agent does not coast or improvise to completion; it halts to the predefined safe configuration.

Cognition Continues While Embodiment Stops

After transitioning to the safe physical state, the agent remains cognitively active in the non-executing cognitive mode. The architecture enforces a structural separation between the agent's execution subsystem and its cognitive subsystems, so the withdrawal of execution authorization does not impair the agent's ability to think, reason, forecast, plan, inquire, or evaluate. Execution suspension is not cognitive suspension.

In the non-executing cognitive mode the embodied agent continues to construct and evaluate planning graphs, generate inquiry requests to resolve the uncertainty or capability gaps contributing to low confidence, perform introspective analysis of its own state, and forecast the consequences of alternative action sequences that might be available when authorization is restored. The agent cannot produce any physical effects until confidence is restored above the physical safety floor, but its deliberation proceeds throughout the suspension.

Recovery of Physical Execution Authorization

Recovery of physical execution authorization follows the same structured process disclosed for the confidence governor generally: confidence restoration, stability verification, and reauthorization. Confidence restoration may result from resolution of the adverse conditions that caused the original drop, such as restored sensor reliability, restored resources, reduced uncertainty, or integrity repair. Stability verification monitors the confidence value and its trajectory over a verification period to confirm that the restored confidence is stable and not merely a transient spike near the threshold.

Recovery of execution authorization requires that the confidence value exceed the authorization threshold by a hysteresis margin, ensuring that the agent does not oscillate between authorized and suspended states when its confidence fluctuates near the threshold. For an embodied agent the relevant bar is the physical safety floor: confidence must be restored above the floor before any actuator may move again, and the conservative setting of the floor means physical reauthorization is held to a stricter standard than computational reauthorization.

Distinctions From Prior Art

Conventional autonomous and robotic systems, including runtime environments that provide pause and resume capabilities, suspend execution reactively in response to external failures or resource interruptions. The confidence governor suspends physical execution proactively, based on the agent's own continuously computed assessment of its sufficiency, enabling the embodied agent to stop itself before damage occurs rather than recovering after damage has occurred.

The distinction is structural. Execution is treated as a revocable permission that must be continuously earned, not as a default state interrupted only by failure. The physical safety floor is a hard gate that the agent cannot override through urgency, intent priority, or delegation, and the safe physical state is a predefined inert configuration to which the agent transitions immediately when the floor is breached, while cognition continues uninterrupted in the non-executing cognitive mode.

Disclosure Scope

This article describes the application of the confidence governor to embodied and robotic execution as disclosed in the cognition filing (U.S. Application No. 19/647,395 and its international counterpart). The disclosure covers the sensor reliability inputs to the confidence computation for embodied agents, the physical safety floor set above the general execution authorization threshold and not overridable by the agent or by delegation commands, the immediate transition to a predefined safe physical state in which actuators are brought to a controlled stop and end effectors are moved to safe positions, the continuation of the non-executing cognitive mode during physical suspension, and the recovery of physical execution authorization through confidence restoration, stability verification, and a hysteresis margin.

The disclosure applies to agents controlling physical actuators, robotic systems, and other mechanisms that produce effects in the physical world, and composes with the broader confidence-governor architecture, including execution authorization gating, the structural separation of execution from cognition, and the confidence-integrity feedback loop, of which embodied execution is one disclosed embodiment.