Sequential Cascade Structures in Cross-Primitive Coherence

Mechanism

The sequential cascade is implemented as a directed acyclic dependency graph over evaluation primitives, with the coherence engine acting as the dispatcher. Each primitive declares its input set and its output set; the engine computes a topological ordering and blocks any primitive from firing until every upstream input has been resolved within the current evaluation epoch. The primary cascade is a five-stage chain: affective state, confidence, integrity, capability, authorization. Auxiliary primitives such as structural-isomorphism alignment, salience weighting, and temporal coherence attach as side branches that feed into the main chain at specific junctions, but the main chain itself is strictly linear.

Within each stage, evaluation is atomic with respect to its inputs. The stage reads a frozen snapshot of upstream outputs, performs its computation, and emits a frozen output that downstream stages will read. No stage may observe partial or in-flight upstream state. If an upstream stage fails or returns an indeterminate result, the cascade aborts and the engine refuses to emit an authorization. This abort-on-incoherence behavior is what distinguishes the cascade from a best-effort pipeline: the cascade is designed to fail closed.

The structural-isomorphism primitive composes with the cascade by ensuring that each stage's representational format aligns with a corresponding human cognitive structure. Affective state aligns with valence-arousal axes; confidence aligns with subjective probability calibration; integrity aligns with commitment-consistency tracking; capability aligns with affordance recognition; authorization aligns with deliberate motor or speech-act commitment. The isomorphism is not decorative. It is the reason a human reviewer can audit the cascade's intermediate values and understand why the agent reached its conclusion.

Operating Parameters

The cascade operates within a bounded latency budget per evaluation epoch. Typical deployments target a budget on the order of tens of milliseconds for reactive agents and hundreds of milliseconds for deliberative agents, with stage budgets allocated proportionally to expected computational cost. Affective state and confidence are inexpensive and run early; integrity and capability dominate the budget; authorization is a thin gate that runs in microseconds once its inputs are present.

Each stage exposes a coherence threshold below which its output is marked indeterminate. Indeterminate outputs propagate downstream as cascade aborts rather than as low-confidence values, because passing low-quality affective state into confidence computation would silently corrupt every subsequent stage. The thresholds are configurable per deployment but must satisfy a monotonicity invariant: a downstream threshold cannot be looser than an upstream one, because doing so would admit decisions that rest on rejected premises.

The cascade epoch is clocked by external trigger (sensor frame, dialogue turn, planning tick) rather than by a free-running internal loop. This binds the cascade's temporal granularity to the granularity of the world it is reasoning about and prevents runaway recomputation during periods of stable input.

Alternative Embodiments

The five-stage primary cascade is the canonical embodiment, but the cascade structure generalizes. Embodiments with extended affective modeling may insert a meta-affective stage between affective state and confidence, in which the agent evaluates its affective state about its affective state. Embodiments targeting collaborative multi-agent settings may insert a social-coherence stage between integrity and capability, in which capability is gated on coherence with a peer's declared intent. Embodiments targeting safety-critical control may insert a redundancy stage between capability and authorization that requires concurrence from an independently-evaluated cascade.

Parallel execution of stages is permitted whenever the dependency graph admits it. Auxiliary primitives without mutual dependencies may execute concurrently with the main chain, and replicated cascades for redundancy may execute on independent compute substrates. The cascade order is a partial order, not a total order; the engine enforces only the minimal set of edges required for coherence.

Embodiments may also implement the cascade across heterogeneous compute, with affective state running on a low-latency edge accelerator, confidence and integrity running on a primary inference engine, and authorization running on a hardened policy enforcement module. The cascade contract is preserved across the substrate boundary by serializing the frozen inter-stage snapshots through an authenticated channel.

Composition

Sequential cascades compose with the structural-isomorphism primitive to produce the human-relatable behavior that this patent family targets. Structural isomorphism guarantees that each stage's internal representation is shaped like the corresponding human cognitive structure; the cascade guarantees that the stages fire in the order a human would fire them. Together, the two primitives produce evaluations that a human observer can not only audit but predict, because the agent reasons in a sequence the observer recognizes from introspection.

The cascade also composes with the disruption-modeling primitives by providing the evaluation backbone against which disruption challenges are applied. An attachment-challenge does not bypass the cascade; it perturbs an upstream stage and observes how the perturbation propagates downstream. Because the cascade order is fixed, the propagation pattern is predictable, and a deviation from the predicted pattern is itself diagnostic of a coherence failure.

Composition with policy gates is straightforward because authorization is the terminal stage. Any policy module that needs to constrain agent action attaches at the authorization boundary, where the upstream cascade has already produced the auditable evidence the policy needs to make a defensible decision. Policy modules do not need to re-derive affective state, confidence, or integrity; they consume the cascade's frozen outputs and apply their own predicates on top. This sharply reduces the surface area for policy-bypass attacks, because a policy that fires only at authorization can rely on the cascade's abort-on-incoherence property to ensure that no decision reaches the policy gate without coherent justification.

Finally, the cascade composes with explanation generation. Because each stage emits a frozen, structurally-isomorphic output, an explanation module can walk the cascade in reverse and generate a narrative that mirrors the way a human would describe the same decision: I felt, then I judged, then I committed, then I considered what I could do, then I acted. The narrative is not post-hoc rationalization; it is a literal trace of the evaluation, which is the property that the human-relatable-intelligence framing requires.

Prior-Art Distinction

Pipelined neural inference architectures order operations for throughput, not for coherence semantics. They do not abort on inter-stage incoherence and do not expose intermediate stages as auditable cognitive structures. Cognitive-architecture systems such as ACT-R and SOAR define stage orderings but do not bind those orderings to a coherence contract enforced by a dispatcher that fails closed. The sequential cascade described here is distinguished by the combination of structural-isomorphism alignment, atomic inter-stage snapshotting, monotone coherence thresholds, and abort-on-incoherence semantics.

Reactive control architectures based on subsumption define layered priority among behaviors but do not require a coherent multi-primitive evaluation; a higher layer simply preempts a lower layer. Behavior trees impose ordering on tactical action selection but do not model affective, confidence, or integrity primitives as first-class citizens. Recent agentic large-language-model architectures may produce text that resembles staged reasoning but produce it as autoregressive token emission, with no enforced separation between stages and no machinery for aborting on inter-stage incoherence. The disclosed cascade is distinguished from each of these by enforcing the order at the dispatcher level, by binding each stage to a structurally-isomorphic representation, and by treating the entire chain as an atomic evaluation that either produces a coherent authorization or none.

Disclosure Scope

This disclosure covers the sequential cascade as a structural element of the cross-primitive coherence engine, including the primary five-stage chain, the auxiliary side branches, the atomic inter-stage snapshotting, the monotone threshold invariant, and the composition with the structural-isomorphism primitive. The disclosure extends to embodiments with additional or reordered stages, heterogeneous-substrate implementations, and redundant cascades for safety-critical control. The cascade is claimed both as an apparatus (the dispatcher and its dependency graph) and as a method (the ordered evaluation procedure with abort-on-incoherence semantics). Equivalents within the scope of the disclosure include cascades whose stage labels differ but whose dependency semantics map onto the disclosed five-stage chain, cascades whose snapshotting is implemented through copy-on-write rather than explicit freezing, and cascades whose abort behavior is implemented through exception propagation rather than explicit dispatcher control, provided the resulting evaluation satisfies the abort-on-incoherence and monotone-threshold properties that distinguish the disclosed mechanism from prior pipelined or layered architectures.