This note defines the comparison boundary for Fixture F-003. The fixture uses comparative-cognition tasks as diagnostic interventions, not as species rankings. Its central requirement is simple: performance can be compared only after the information, action, learning, and reward opportunities that produced it are explicit.
Episode contract
For episode , record
where is task and apparatus state, is the physically available sensory channel, is the feasible realized-action set, is training, rearing, prior-task, and social-exposure history, is the reward, punishment, deprivation, and stopping rule, is the intervention and control set, is the relevant time in seconds, and is the sampling unit such as episode, agent, dyad, or population. All fields except are typed records or sets rather than unit-bearing scalars.
The learner receives the causally available prefix
where and receipt time are seconds. Handler cues, apparatus sounds, demonstrator traces, residual odor, simulator metadata, and training-phase identifiers belong in when they are actually available. Protocol intention is not a measurement of the input channel.
For requested action and plant version , feasibility is
and realized action follows
is dimensionless. Requested and realized actions retain their native units, such as metres, radians, newtons, newton-metres, or a discrete tool identifier. A nominally identical task is not matched when one plant cannot sense while holding the required tool or cannot execute the required motion.
Opportunity-qualified performance
For method , success event , and declared opportunity stratum , define
is dimensionless. The paired contrast against baseline is
Report by morphology, actual channel, history, reward schedule, demonstrator exposure, site, and intervention family. A pooled contrast is admissible only after heterogeneity is shown rather than assumed away.
Use a transport contrast to test whether the learned relation survives a controlled change :
is dimensionless. Useful changes include material substitution, geometry change, causal inversion, perceptual-cue reversal, morphology or tool swap, history swap, demonstrator removal, partner turnover, and delayed future use. The sign is interpreted relative to a preregistered invariance: some changes should preserve performance; inversions should reverse the selected action.
Transfer lattice
Do not compress transfer into one difficulty axis. For task family , retain
Every component is a dimensionless paired effect. Surface and material changes test perceptual or affordance generalization; relation changes test functional sensitivity; history and plant changes test dependence on acquisition and embodiment; social changes identify copied content; and delay changes test the lifetime of retained state. The vector prevents terminal success on one familiar apparatus from standing in for causal, prospective, or cross-plant transfer.
First-trial transfer after the held change is reported separately:
Later trial curves estimate adaptation, not prior transfer. Both are retained.
Social acquisition decomposition
A demonstration is represented as
where is action form, is end state, is trajectory, is demonstrator identity and reliability, is the demonstrated functional relation, and is provenance. These are typed variables.
For component , its causal uptake effect is
where is a declared dimensionless learner outcome and holds the other components fixed. Ghost, result-only, novel-action, inefficient-action, and causal-relevance controls approximate these interventions. Matching the end state does not establish copying of action form.
Prospective and event memory
For stored event or resource ,
where is content, location, time in seconds from a declared origin, quality or perishability state, social or task context, and provenance. At future time , a conventional reservation null uses
where availability probability is dimensionless and reward and retrieval/carrying cost use the same declared utility unit. A proposed prospective trace earns credit only beyond value tables, successor representations, POMDP planning, and retrieval with equal state and rollout budgets.
Bound-event memory is tested against factorized semantic and spatial state. For query over unique event , report exact-answer rate, calibration, update propagation, retrieval latency in seconds, and memory bytes. Subjective recollection is not an observable in this contract.
Costed uncertainty control
For optional observation or query with cost , the ordinary value-of-information null is
where belief and latent state are dimensionless, while utility and use the same declared unit. The policy acquires only when VOI is positive. Risk–coverage–cost surfaces must also include calibrated confidence, ensembles, conformal/selective prediction, learned difficulty cues, and response-strength policies.
Local, central, and mechanical contribution
For a compliant plant with local segments, let the central policy send message and segment receive local observation . The realized control is
where local state is dimensionless, plant version is , and control retains its native actuator unit. Compare this with a centralized policy receiving the same causally available observations and with a passive- mechanics arm receiving no learned local state.
Communication load over horizon is
and total control energy is
Peripheral credit requires a quality, recovery, latency, or energy gain after passive compliance, actuator work, sensor power, communication, and local hardware are charged. Anatomical distribution alone supplies no credit.
Outcome and lifecycle boundary
Keep the confirmatory result as a vector:
, , and are dimensionless; unsafe events and attempts are counts; latencies and are seconds; memory and communication are bytes; human effort is person-hours; and lifecycle energy is joules.
For method over all development and confirmatory work,
The fixture accepts the composed residual only if it improves a preregistered subset of literal outcomes without violating non-inferiority margins on the others, survives at least two task families, plant geometries, histories, model families, and hardware classes, and beats the complete conventional null stack at the same episodes, interventions, search, storage, communication, human effort, and energy. Otherwise retain the observation contract and retire the architectural story.
Editable system diagram: opportunity-history-qualified-action.mmd.