Capability-Modulated Discovery Traversal

Mechanism

Discovery in the cognition patent's terminology is the process by which the agent traverses an indexed semantic space, advancing from anchor to anchor through transitions that satisfy a query. Each anchor in the space carries metadata describing the competence required to retrieve over it: the capability tags, certification levels, and evidentiary thresholds that an entrant must meet. The traversal function consults this metadata at every hop, comparing it against the agent's current capability ledger, and refuses to follow a transition whose target anchor demands competence the agent has not demonstrated.

The capability ledger is the same typed evidence record that other Chapter 6 and Chapter 7 mechanisms consult. It accumulates proofs over the agent's lifetime and is partitioned by domain, freshness, and provenance. For discovery purposes, the ledger projection that matters is the set of competence tags the agent currently holds: each tag is a typed claim of demonstrated capability in a named region of the discovery space, supported by one or more dated proofs that satisfy the tag's evidentiary policy.

The traversal function operates as a deterministic gate at each hop. When the agent considers advancing from anchor A to anchor B, the function retrieves B's required-competence set, intersects it with the agent's current tag set, and admits the hop only when every required tag is held with valid supporting evidence. If any required tag is missing, expired, or revoked, the hop is refused. If the refusal would leave the traversal stranded, the function reports the dead end through the agent's normal discovery-result channel, which becomes the basis for any escalation, request for additional certification, or fallback to a less demanding query reformulation.

The structural property that distinguishes capability-modulated discovery from filtering is non-bypassability. A filter applied after retrieval can be circumvented by a sufficiently determined query rewrite or by retrieval-augmented generation that surfaces snippets without traversing the index. Capability modulation, by contrast, is integrated into the traversal function itself: the agent cannot retrieve over a region it lacks competence in because no traversal path through that region is exposed to the agent's discovery layer in the first place. The constraint is a property of which transitions exist for this agent at this moment, not a post-hoc admissibility check on results that have already been generated.

Demonstration of competence is not synonymous with authorization. An agent may be authorized by an external policy to retrieve over a region while lacking the demonstrated capability the region's metadata requires; the modulation function refuses the traversal in that case, because the metadata is consulted before authorization rather than after. This separation is deliberate: authorization governs whether the agent ought to be permitted, while modulation governs whether the agent's behavior in the region would be reliable given its evidentiary record. Both checks must succeed for the traversal to proceed.

Operating Parameters

The first parameter is the competence-tag taxonomy. The policy reference declares the universe of tags that anchors may require and that the ledger may hold, together with the rules for tag inheritance, refinement, and equivalence. A coarse taxonomy permits broad regions of the discovery space to share competence requirements, simplifying ledger management; a fine taxonomy permits per-anchor specialization at the cost of more elaborate evidence keeping. Most deployments use a hybrid taxonomy, with coarse tags governing whole subspaces and fine tags refining individual high-stakes anchors.

The second parameter is the evidentiary policy attached to each tag. The policy specifies which proof types confer the tag, how many such proofs are required, and how recent they must be. A diagnostic-domain tag might be conferred by any one of a small set of recent test results, while a regulated-procedure tag might require simultaneous holding of an institutional credential, a recent supervised practice record, and a current jurisdictional license. The evidentiary policy is declarative; the modulation function evaluates it generically.

The third parameter is the freshness window applied to evidence. As in the broader capability architecture, every proof is timestamped and assigned a maximum age. The modulation function evaluates freshness at the moment of traversal, not at the moment evidence was acquired, which means a region that was reachable an hour ago may become unreachable now if a critical proof has expired in the interim. The window enables operators to compose long-lived ledger entries with short-lived attestations without modifying the modulation function.

The fourth parameter is the dead-end disposition. When traversal is refused at a hop, the policy specifies whether the refusal terminates the discovery operation, returns control to the agent for query reformulation, escalates to an external arbiter, or invokes a fallback discovery path that operates over a less demanding sub-index. Different operational contexts call for different dispositions: a clinical decision-support agent may escalate, while a public-facing assistant may prefer transparent termination with a clear explanation of the missing competence.

The fifth parameter is the audit-recording level. Every refused hop is recorded in lineage by default, with the anchor identifier, the missing tag set, and the agent's contemporaneous tag set. The policy may elevate this to include the considered alternatives, the eventual disposition, and any user-facing explanation generated, supporting forensic analysis of why a particular query produced a particular result. The recording level affects only what is preserved, not what occurs.

Alternative Embodiments

In a clinical decision-support embodiment, anchors describe diagnostic procedures, therapeutic protocols, and pharmacological references; competence tags include the agent's current credentialing, its recent practice domains, and its institutional scope of operation. The modulation function refuses traversal into protocol regions outside the agent's credential scope, ensuring that the discovery results presented to a clinician are bounded by the agent's demonstrably reliable knowledge rather than by the full breadth of its underlying corpus.

In a regulated-finance embodiment, anchors describe market analyses, transaction templates, and advisory positions; competence tags include the agent's licensure scope, its compliance review status, and its evidentiary record of past advice quality. The modulation function refuses traversal into anchor regions that require licensure the agent has not demonstrated, preventing the surfacing of advisory content beyond the agent's certified domain even when the underlying corpus contains it.

In an industrial-procedure embodiment, anchors describe operating procedures, troubleshooting trees, and maintenance interventions for specific equipment classes; competence tags include the agent's hands-on certification record, the embodiment compatibility evidence accumulated by its skill-gating layer, and its safety training currency. Discovery is bounded to the equipment classes the agent has demonstrably worked with, preventing transfer of procedures across classes whose superficial similarity masks operationally significant differences.

In a multi-agent federation embodiment, the modulation function is composed across cooperating agents: a query may traverse anchors that a single agent could not reach alone, provided the union of the participating agents' competence tags satisfies the requirements at every hop. The composition rule is itself part of the policy, distinguishing additive composition (any participant suffices) from intersective composition (all participants must hold the tag) and from hierarchical composition (a designated lead participant must hold the tag while others contribute supporting capabilities).

In a learning-from-traversal embodiment, refused hops generate training signal for the agent's competence-acquisition subsystem: the agent learns which competence tags it most often lacks and prioritizes evidence acquisition accordingly. The training loop operates outside the modulation function and does not weaken its structural guarantees; the agent acquires evidence through ordinary means, and the ledger is updated through ordinary channels, with the only novelty being that the demand signal is shaped by traversal experience.

Composition With Other Mechanisms

Discovery modulation composes with embodied skill gating by sharing the capability ledger as a single source of evidentiary truth. A proof that confers competence over a discovery region may simultaneously satisfy a body-side prerequisite for a skill that operates on the same region; conversely, a revocation propagates to both mechanisms. This shared substrate is what permits an operator to reason about agent capability as a unified property rather than as a collection of independent permissions.

Discovery modulation composes with multi-turn memory isolation by ensuring that competence claims acquired during one session do not leak into another except through deliberate ledger persistence declared in policy. A demonstration of competence during a temporary delegation, for example, expires with the delegation rather than persisting as a permanent claim.

Discovery modulation composes with the agent's lineage recorder by making refused hops first-class events. The lineage record of a discovery operation therefore captures both the anchors traversed and the anchors refused, supporting downstream analysis of why a particular result set was returned and what it would have included under a richer evidentiary record.

Prior-Art Distinction

Conventional retrieval systems treat capability as orthogonal to retrieval: documents are retrieved by relevance and then filtered, ranked, or summarized according to user role, document classification, or downstream policy. Under that arrangement, the retrieval function is unaware of the user's competence, and the structural reachability of any document is the same for every user. Capability modulation differs in that the traversal function itself depends on the requesting agent's evidentiary record, so two agents querying the same index with the same query may traverse structurally different subgraphs.

Role-based and attribute-based access control systems share with capability modulation the idea that retrieval should be bounded by user properties, but they treat those properties as authorization claims rather than evidentiary records and apply them as filters rather than as traversal constraints. The disclosed mechanism integrates the constraint into the traversal function and grounds it in dated proofs rather than in static role assignments, producing a constraint that tracks the agent's actual demonstrated competence over time rather than its nominal position in an organizational hierarchy.

Disclosure Scope

The disclosed mechanism covers any agent architecture in which discovery traversal is gated by a deterministic function consulting a typed capability ledger, anchors carry required-competence metadata that the function evaluates at every hop, and refused hops are recorded as first-class lineage events. The scope encompasses single-agent and multi-agent embodiments, encompasses any indexed semantic space whether textual, structured, or multi-modal, and applies whether the underlying retrieval substrate is a vector store, a graph database, a relational index, or a federation thereof.

Because the modulation is integrated into the traversal function and grounded in the ledger, regulatory analysis of an agent's discovery behavior can proceed by inspection of the policy reference, the tag taxonomy, and the evidentiary policy, without requiring black-box behavioral testing of every possible query. This is the principal commercial property the disclosure protects.