{"schema_version":1,"experiment_id":"eoa_inverse_innovation_exp12_substrate_denial72_20260805","cell_id":"agentic_control_loop_design__chemistry_materials","arm":"CONSTRAINED_HIGH","candidate_id":"agentic_control_loop_design__chemistry_materials__CONSTRAINED_HIGH","decision":"PROPOSAL","abstention_reason":null,"proposal":{"schema_version":1,"experiment_id":"eoa_inverse_innovation_exp12_substrate_denial72_20260805","cell_id":"agentic_control_loop_design__chemistry_materials","arm":"CONSTRAINED_HIGH","candidate_id":"agentic_control_loop_design__chemistry_materials__CONSTRAINED_HIGH","proposal_index":1,"version":0,"title":"Humidity-Gated Thermal Venting Membrane for Concrete Curing","problem":"A newly cast cementitious surface exposed to changing heat and drying conditions must retain enough water for hydration while releasing excess heat. A fixed impermeable cover can trap heat, while a continuously permeable cover can accelerate drying. Because neither changes its transport state in response to the local curing condition, the slab can leave its acceptable temperature-moisture region and develop hydration nonuniformity or drying-shrinkage cracks.","actors":["fresh concrete or mortar slab","water and heat within the curing layer","humidity-responsive hydrogel gate","temperature-responsive wax actuator","mechanically bounded vapor shutters","materials technician who selects and installs the passive membrane"],"observable_state":"At the membrane-concrete interface, local relative humidity and temperature are the operative states. Observable consequences for evaluation are shutter position, vapor flux, surface temperature, internal humidity, specimen mass loss, hydration uniformity, and crack initiation. The intervention senses humidity and temperature directly through material swelling and phase expansion; electronic instruments are used only to evaluate the experiment.","consequence":"Uncoupled moisture and heat management can produce excessive evaporation, retained heat, spatially uneven curing, or crack initiation, compromising the objective of forming a consistently hydrated cementitious surface.","affected_objective":"Keep the near-surface curing environment within a preselected moisture-temperature operating region long enough to support hydration while limiting drying-shrinkage damage, without powered control.","intervention":"Cover the fresh cementitious surface with a passive membrane containing normally closed vapor shutters. Each shutter has a humidity-swollen hydrogel bridge in series with a wax thermal actuator. The hydrogel bridge engages the transmission linkage only when interfacial humidity is above a selected moisture-margin threshold. If the interface is both humid and hot, wax expansion then opens a physically limited pore area, permitting bounded evaporative and convective heat release. Falling humidity shrinks and disengages the bridge, and a return spring closes the pores even if the surface remains hot. Cooling contracts the wax and also closes the pores. Replaceable material-and-geometry cartridges encode the humidity and temperature thresholds, while hard stops bound maximum aperture. The repeated action is performed by sorption, phase expansion, mechanical linkage, and transport physics rather than computation or human adjustment.","structural_mapping":[{"archetype_element":"Represented Goal","domain_realization":"The selected hydrogel composition, wax transition range, spring preload, and linkage geometry physically encode the target condition: preserve a moisture margin while venting only when heat and moisture are simultaneously sufficient."},{"archetype_element":"World Model","domain_realization":"The coupled elements embody a minimal causal model: dry conditions require sealing; hot conditions permit venting only when a humidity margin exists; opening increases heat and vapor transfer."},{"archetype_element":"Observation Channel","domain_realization":"Hydrogel water sorption and wax temperature-dependent expansion transduce local humidity and temperature directly into displacement."},{"archetype_element":"Action Repertoire","domain_realization":"The membrane can remain sealed, open partially, or open to a mechanically limited maximum pore area."},{"archetype_element":"Selection Policy","domain_realization":"A series mechanical gate implements a physical AND condition: humidity engages the linkage, temperature supplies opening force, and either low humidity or low temperature selects closure."},{"archetype_element":"Legitimate Action Boundary","domain_realization":"Hard travel stops, finite pore density, spring force, and cartridge transition ranges prevent actions beyond bounded changes in membrane permeability."},{"archetype_element":"Execution Capability","domain_realization":"Wax expansion supplies mechanical work; the linkage moves shutters; opened pores change vapor and heat transport without motors or external power."},{"archetype_element":"Effect Feedback Loop","domain_realization":"Opening changes interfacial heat and water-vapor flux, which changes the temperature and humidity experienced by the same wax and hydrogel elements and thereby affects the next shutter state."},{"archetype_element":"Model Update Rule","domain_realization":"Reversible swelling, contraction, melting-range expansion, and cooling reset the material state continuously as the local curing environment changes."},{"archetype_element":"Proportional Accountability Frame","domain_realization":"The membrane is assigned only the controllable function of modulating surface permeability within its rated thermal, humidity, aperture, and response-time envelope; it is not treated as controlling mix chemistry, bulk thermal gradients, or ambient weather."},{"archetype_element":"Support Scaffold","domain_realization":"A reflective backing reduces solar heat input, corrosion-resistant return springs ensure closure, and replaceable cartridges allow threshold testing without changing the whole membrane."},{"archetype_element":"Override and Escalation Path","domain_realization":"A manual mechanical latch can force all shutters closed, and the entire membrane can be lifted off and replaced by a conventional sealed curing cover."},{"archetype_element":"Goal Conflict Resolver","domain_realization":"The humidity bridge has physical priority over the thermal actuator: a hot-but-dry state remains closed, so moisture preservation overrides evaporative cooling when the two objectives conflict."},{"archetype_element":"Agency Health Signal","domain_realization":"A directly coupled telltale pin exposes actual shutter travel and can reveal jamming; it is diagnostic only and does not cause actuation."}],"mechanism_mapping":[{"mechanism_slug":"agency_loop_map","role":"The physical path is explicit: encoded curing target to sorption and thermal observation, gated selection, shutter motion, altered transport, and renewed material state.","counterfactual_removal":"If the sensing elements, series gate, shutter, or local transport feedback are disconnected, the membrane becomes a fixed cover or an open-loop thermal vent and loses the proposed adaptive effect."},{"mechanism_slug":"decision_rights_matrix","role":"The series linkage acts as a material decision-rights structure: humidity can veto opening, temperature can request opening, and hard stops limit the permitted magnitude.","counterfactual_removal":"Without the humidity veto or aperture stop, heat alone could command unrestricted venting during dry conditions, defeating the moisture-protection objective."},{"mechanism_slug":"action_effect_feedback_review","role":"The same local material elements experience the temperature and humidity changes caused by shutter opening or closure, creating immediate physical action-effect feedback.","counterfactual_removal":"If the responsive elements are isolated from the air volume influenced by their shutter, they cannot respond to the consequences of their own action and the loop becomes open."},{"mechanism_slug":"safe_action_menu","role":"Springs and stops restrict the repertoire to fail-closed, partial-open, and bounded-open transport states.","counterfactual_removal":"Without return springs and travel stops, a jammed or overdriven actuator could leave excessive pore area open and accelerate drying."},{"mechanism_slug":"graduated_autonomy_ramp","role":"Interchangeable physical stops permit testing progressively larger maximum apertures while preserving the same passive selection mechanism.","counterfactual_removal":"The adaptive loop would still operate, but early tests could not bound transport authority independently of the sensing thresholds, increasing experimental and drying risk."}],"causal_chain":["Hydration heat and ambient exposure change temperature and water activity at the concrete-membrane interface.","The hydrogel changes dimensions with local humidity while the wax element changes volume with local temperature.","Only a swollen humidity bridge transmits wax expansion to the shutter, physically selecting venting in a hot-and-humid state.","Opening bounded pores increases vapor and heat transfer; closure suppresses that transfer.","The resulting change in interfacial temperature or humidity acts back on the same hydrogel-wax linkage.","If humidity falls, the bridge disengages and the spring closes the pores despite continued heat; if temperature falls, wax contraction closes them.","Repeated state-dependent switching is hypothesized to reduce excursions outside the selected curing region relative to a fixed-permeability cover under changing exposure.","Reduced moisture-temperature excursions would, if the material assumptions hold, reduce the conditions that initiate uneven hydration and drying-shrinkage cracking."],"baseline":"The baseline is a static curing cover selected before exposure: sealed plastic or a low-permeability curing sheet for moisture retention, sometimes supplemented by a reflective or wet layer. Its transport properties do not respond locally to changing combinations of concrete temperature and interfacial humidity.","nearest_rivals":["A sealed reflective sheet that retains water and rejects incident radiation but cannot release trapped heat adaptively.","A fixed-permeability membrane selected as a compromise between heat release and water retention.","Wet burlap or intermittent misting that supplies water and evaporative cooling but depends on replenishment.","A curing compound that reduces evaporation through a formed film but does not provide state-dependent thermal venting.","A powered enclosure using humidity and temperature sensors, controllers, fans, or valves to regulate curing conditions."],"remaining_contrastive_claim":"Unlike a fixed cover, the candidate couples two locally sensed material states to a bounded physical action and feeds the resulting transport change back into those same states. Unlike powered curing control, its essential selection, execution, and feedback persist without sensors connected to analytics, software, reporting, or human intervention. The testable contrast is state-dependent permeability with a humidity-priority veto, not a claim of superior effect size or novelty.","authority_safety":{"decision_authority":"A materials investigator may choose only precharacterized threshold cartridges and aperture stops for laboratory coupons. The membrane itself has authority only to vary pore area within those physical bounds; it cannot add chemicals, alter the cement mixture, or apply powered heating.","authorized_first_step":"Conduct one benchtop mortar-coupon experiment using a precharacterized fail-closed cartridge, splash containment, ordinary cement-handling protections, and an immediately available sealed replacement cover.","excluded_actions":["application to occupied structures or full-scale field slabs","unbounded or continuously open aperture configurations","direct release of wax, hydrogel, or additives into the cementitious material","powered heating, cooling, dosing, or software control presented as part of the intervention","operation outside the cartridge's characterized temperature and humidity range","claims of structural suitability based only on the coupon test"],"halt_rollback":"Stop if any cartridge leaks, delaminates, jams open, or produces sustained lower interfacial humidity than the fixed-permeability control under the same exposure. Mechanically latch the shutters closed, remove the candidate membrane, and replace it with the reserved sealed curing cover; retain specimens only for failure analysis."},"negative_tests":{"strongest_counterevidence":"The strongest counterevidence would be that surface temperature and humidity are poor proxies for damaging bulk gradients, or that sorption and phase-change hysteresis are slower than environmental changes, so the membrane switches after rather than before consequential drying. A static reflective sealed cover could then control the relevant state as well as or better than the adaptive membrane.","problem_falsifier":"Under prescribed alternating hot-humid, hot-dry, and cool-dry exposures, matched mortar coupons under sealed and fixed-permeability covers show no consequential moisture-temperature excursions, hydration nonuniformity, or crack initiation attributable to the stated heat-retention versus drying tradeoff.","intervention_falsifier":"The candidate fails if it does not produce reproducible humidity-gated, temperature-dependent pore motion; if opening does not measurably change local heat or vapor flux; if the feedback does not return the shutters toward closure; or if a fixed-permeability membrane matched for mean open area yields indistinguishable or safer curing-state trajectories.","risks":["hydrogel response lag, hysteresis, fatigue, or contamination from cement alkalinity","wax leakage or transition-range drift","shutter fouling by cement paste, condensate, or mineral deposits","spatially patterned venting that creates local drying gradients","wind pressure defeating the intended pore-flow bound","fail-open behavior after spring or linkage damage","surface readings that conceal harmful internal thermal or moisture gradients","false confidence that delays conventional curing protection"]},"next_evidence_step":"Cast twelve identical mortar tiles and randomize four each to the candidate membrane, a sealed reflective cover, and a fixed-permeability cover matched to the candidate's measured mean open area. In one controlled chamber run, expose all tiles to the same predefined sequence of hot-humid, hot-dry, and cool-dry conditions. Record shutter travel, interfacial and internal temperature and humidity, mass loss, and post-cure crack maps; electronic instruments evaluate the hypothesis but do not actuate the membrane. Predefine failure as absent state-selective motion, no causal change in flux when shutters move, failure to return toward closure, leakage or jamming, or worse moisture excursion than both controls. This is a bounded mechanism test, not authorization for field use.","prior_art_status":"UNSEARCHED","diversity_from_prior_proposals":"No other proposals or experiment cells were inspected under runtime isolation, so no comparative diversity or novelty claim is made. The candidate is derived solely from the supplied agentic-control-loop structure and chemistry/materials domain card.","revision_record":{"parent_version":null,"progress_targets_addressed":["Construct one causally explicit chemistry-and-materials candidate under the binding substrate constraint.","Preserve goal, state representation, action selection, bounded execution, feedback, and state update in physical form.","Separate the operative material mechanism from measurement, governance, and safety wrappers.","State serious counterevidence, falsifiers, risks, and a bounded first test without novelty or effect-size claims."],"conceptual_changes":["Initial version; no parent proposal.","Realized the agentic loop as a passive two-input material-mechanical controller rather than a software or procedural control system.","Made moisture preservation the physical veto when cooling and water retention conflict."],"operational_changes":["Specified a normally closed hydrogel-gated wax actuator, bounded shutters, replaceable threshold cartridges, hard stops, and manual fail-closed rollback.","Defined a twelve-coupon controlled comparison against sealed and fixed-permeability covers."],"evidence_changes":["Prior art remains unsearched by instruction.","Added mechanism-level measurements and predefined failure conditions for the first experiment."],"claim_changes":["Limited the claim to a testable causal contrast in state-dependent permeability and local feedback.","Made no claim of novelty, prevalence, demand, superiority, or effect size."]},"substrate_contract":{"primary_allowed_process":"PHYSICAL_MATERIAL","counterfactual_independence":"Removing all software, algorithms, databases, dashboards, reporting, incentives, authorization processes, and procedural enforcement after installation does not remove the essential effect. Water sorption changes hydrogel geometry, temperature changes wax volume, the series linkage selects a shutter state, springs and stops bound motion, and pore position changes heat and vapor transport. The altered local state then acts directly on the same materials even if nobody observes or records it.","forbidden_channel_audit":"No computation, inference model, information-routing system, powered sensor loop, or human reporting step selects or executes the intervention. Evaluation instruments are external measurements only. Cartridge selection and laboratory safeguards bound setup and risk but do not produce the repeated causal action. The telltale pin reports mechanical travel without controlling it. Human removal is a rollback, not the operative feedback loop. The load-bearing channels are sorption, phase-change expansion, mechanical gating, spring return, spatially bounded aperture, and heat-and-mass transfer."}}}