{"schema_version":1,"experiment_id":"eoa_inverse_innovation_exp05_complete_proposal_portfolio20_20260803","cell_id":"layer_decay_and_expiration_management__environmental_climate","arm":"COMPLETE_PROPOSAL_PORTFOLIO","candidate_id":"ecocontrol-mat-lifecycle-registry","proposal_index":1,"version":0,"title":"Lifecycle-Governed Retirement of Wetland Erosion-Control Mats","problem":"Wetland and streambank restoration sites may receive successive erosion-control blankets, coir mats, synthetic netting, and anchoring layers as repairs are repeated. Earlier installations can remain exposed or buried after their stabilizing role, material integrity, and removal assumptions have changed. Without an identity map, inspection date, dependency record, or disposition state, an old mat remains functionally active by default: crews may cover it with another layer, wildlife may encounter fragmenting mesh, and later managers cannot tell whether removal would protect habitat or destabilize rooted sediment.","actors":["Wetland or stream restoration manager","Field ecologist","Erosion-control contractor","Landowner or site steward","Permitting or environmental regulator","Maintenance crew","Downstream habitat and wildlife receptors"],"observable_state":"At a restoration reach, multiple distinguishable generations of erosion-control material occupy the same bank or marsh surface. Some have unknown installation dates or specifications; some are exposed, torn, buried beneath newer work, incorporated into roots, or no longer associated with an identifiable owner. Work records do not consistently connect each physical layer to its location, current condition, ecological dependencies, inspection deadline, or authorized disposition.","consequence":"Managers may repeatedly add material because old layers cannot be evaluated safely, leaving deteriorated netting or fragments in habitat and obscuring the actual condition of the bank. Conversely, an undifferentiated cleanup can remove a layer that still supports vegetation or sediment, causing erosion and destroying the evidence needed to reconstruct why it was installed.","affected_objective":"Maintain bank stability and restoration continuity while preventing obsolete erosion-control materials from remaining indefinitely active or being removed without ecological dependency checks and an auditable reconstruction path.","intervention":"Install a lifecycle register for each erosion-control layer at one bounded restoration reach. Assign every mapped installation a stable identity, geospatial footprint, material class, deposition order, known or estimated installation date, condition, access history, and lifecycle state: active, inspection-due, dependency-review, retire-in-place, staged-retrieval, removed, or preservation-exception. At installation, assign a class-specific inspection TTL that triggers reassessment rather than automatic removal. Rank inspection-due layers with an age-weighted value-and-risk score, but require a field dependency check for rooted vegetation, sediment retention, adjacent structures, and permit obligations before any disposition recommendation. A named restoration manager may then authorize continued use, refreshed inspection, retirement in place with a marker, or a separately permitted staged retrieval. Record exceptions, successor layers, and removal evidence; retain a small material specimen and site record when needed for later interpretation.","structural_mapping":[{"archetype_element":"Sequential deposits","domain_realization":"Successive blankets, meshes, mats, anchors, and repair overlays installed on the same restored bank or wetland surface."},{"archetype_element":"Layer identity and age index","domain_realization":"A geospatially indexed record links each physical installation to its material, footprint, deposition order, installer, and known or estimated installation date."},{"archetype_element":"Changed usefulness or validity","domain_realization":"A mat may cease contributing to erosion control, become fragmented or exposed, or remain structurally important after vegetation grows through it."},{"archetype_element":"Stale layer remaining active by default","domain_realization":"An unclassified old installation is covered, ignored, or treated as still required because no explicit retirement decision exists."},{"archetype_element":"Decay or expiration trigger","domain_realization":"A material-class inspection TTL and observed deterioration trigger reassessment, not automatic physical removal."},{"archetype_element":"Value and risk comparison","domain_realization":"Age, current stabilizing function, wildlife-contact condition, recoverability, and uncertainty produce a review ranking."},{"archetype_element":"Dependency and reconstruction check","domain_realization":"Field review tests whether roots, sediment, adjacent repairs, monitoring interpretation, or permit conditions still depend on the layer."},{"archetype_element":"Differentiated disposition pathways","domain_realization":"Continue active use, set a new inspection date, retire in place, conduct staged retrieval, or preserve by exception."},{"archetype_element":"Preservation exception","domain_realization":"A layer remains protected when removal could destabilize habitat, violate a permit condition, or erase a necessary reference installation."},{"archetype_element":"Deletion audit and tombstone","domain_realization":"After authorized removal, the register retains the former footprint, removal date, reason, evidence, and successor-layer link so absence is not mistaken for nonexistence."},{"archetype_element":"Revalidation loop","domain_realization":"Inspection dates and exception holds return to a named manager for periodic review rather than becoming permanent silently."}],"mechanism_mapping":[{"mechanism_slug":"stale_layer_detection_dashboard","role":"Provides the identity-resolved map and field worklist, surfacing layers whose physical condition, ownership, specification, or stabilizing rationale may no longer match current site conditions.","counterfactual_removal":"Without the inventory and staleness surface, managers cannot reliably distinguish sequential layers or direct review toward installations whose meaning or condition has changed."},{"mechanism_slug":"time_to_live_ttl_policy","role":"Assigns an inspection lifetime when a layer is installed; expiry changes the layer to inspection-due but cannot authorize retrieval or destruction.","counterfactual_removal":"Without a preassigned trigger, reassessment depends on incidental discovery and an old layer can remain active indefinitely."},{"mechanism_slug":"age_weighted_value_score","role":"Ranks inspection-due layers using age together with stabilizing value, wildlife-contact risk, condition, replacement history, uncertainty, and reconstruction value; it is only a triage input.","counterfactual_removal":"Without comparable ranking, limited field-inspection capacity is allocated ad hoc and the oldest, most visible, or easiest layers may receive attention regardless of ecological consequence."},{"mechanism_slug":"dependency_safe_delete_check","role":"Acts as a mandatory pre-retrieval gate by tracing physical, ecological, documentary, and regulatory dependencies and blocking removal when a live dependency or unresolved uncertainty remains.","counterfactual_removal":"Without this gate, an apparently obsolete mat could be extracted while still retaining sediment, supporting roots, anchoring another repair, or satisfying a permit condition."},{"mechanism_slug":"retention_schedule","role":"Maps material and installation classes to minimum observation periods, inspection cadence, permitted disposition routes, and named stability or evidentiary exceptions.","counterfactual_removal":"Without class-level rules and exception authority, comparable layers receive inconsistent treatment and temporary caution can become an undocumented permanent hold."},{"mechanism_slug":"tombstone_or_deletion_marker","role":"Preserves the former layer identity, footprint, disposition, reason, and successor relation after authorized physical removal.","counterfactual_removal":"Without a tombstone, later crews may interpret an empty footprint as never treated, repeat an unsuitable installation, or lose the site's reconstruction history."}],"causal_chain":["Repeated repairs deposit successive erosion-control layers faster than their ongoing role is reassessed.","Missing identities, ages, and lifecycle states make old installations hard to distinguish and leave them active by default.","The lifecycle register resolves each installation and exposes layers with elapsed inspection TTLs or condition-based staleness signals.","Age-weighted scoring orders those candidates for scarce field review without deciding their fate.","The dependency-safe gate tests whether vegetation, sediment, adjacent infrastructure, monitoring interpretation, or permit obligations still rely on each candidate.","Authorized reviewers select continued use, renewed inspection, retirement in place, preservation by exception, or separately approved staged retrieval.","Disposition records and geospatial tombstones prevent removed layers from disappearing from site history and force exceptions back into review.","The managed cycle reduces silent layering while preserving the ability to interpret prior interventions and avoiding unexamined removal of load-bearing material."],"baseline":"Maintenance is organized around visible erosion or scheduled construction. Crews inspect the current surface, consult whatever project files are available, and may overlay, leave, or remove older material case by case. There is no unified layer identity, expiry-to-review trigger, dependency gate, exception register, or durable record of a removed layer's footprint.","nearest_rivals":["Material substitution that requires only biodegradable or wildlife-safer erosion-control products for future installations.","A fixed calendar requiring blanket removal after a specified interval.","Reactive removal of exposed or entangling netting during routine habitat inspections.","Avoidance of blankets through live staking, grading, or other vegetation- and soil-based stabilization.","A conventional asset-maintenance database that records installations and work orders but lacks explicit expiry, dependency, exception, and tombstone states."],"remaining_contrastive_claim":"The proposal's remaining contrast is a governed lifecycle for sequential physical installations: age triggers review, ranked candidates undergo an ecological dependency gate, disposition is differentiated, exceptions expire into revalidation, and removal leaves reconstructable evidence. It is not merely safer procurement, scheduled cleanup, incident response, or installation tracking.","authority_safety":{"decision_authority":"The designated restoration manager may classify and schedule inspections. Any physical retrieval requires the landowner's authority, applicable permit approval, and sign-off by a qualified field ecologist or engineer responsible for bank-stability assessment.","authorized_first_step":"Create a read-only inventory for one bounded reach using existing plans, surface observation, photographs, and non-destructive probing where already permitted; assign provisional identities and uncertainty labels, but make no disposition changes.","excluded_actions":["Automatic removal when a TTL expires or a score crosses a threshold","Excavation, cutting, pulling, or disturbing vegetation under the inventory-only authorization","Treating an unknown installation date as proof that a layer is obsolete","Overriding permit, habitat-protection, landowner, cultural-resource, or safety restrictions","Removing a layer with an unresolved physical, ecological, documentary, or regulatory dependency","Representing an unobserved buried layer as absent","Permanent destruction of specimens or records needed for an approved investigation"],"halt_rollback":"Halt field work if probing disturbs sediment, vegetation, wildlife, buried utilities, or an unidentified protected feature. Restore displaced surface material immediately where feasible, flag the location as unresolved, preserve the original record and photographs, and require specialist review before further inspection. Because the authorized first step changes no lifecycle state and removes no material, rollback consists of withdrawing provisional classifications while retaining the evidence and audit trail."},"negative_tests":{"strongest_counterevidence":"Across the bounded reach, installation records and field observations show that successive layers are already uniquely tracked and retrieved or safely degraded as specified, with no unknown overlays, exposed fragments, stale active classifications, or unresolved dependencies; observed ecological disturbance is better explained by hydrology, construction damage, or another cause.","problem_falsifier":"The inventory finds no sequential accumulation requiring lifecycle decisions: each location has at most one identifiable active layer, every inactive installation has a documented disposition, and no old layer remains discoverable or physically present without an explicit current role or exception.","intervention_falsifier":"Independent reviewers cannot reproducibly distinguish lifecycle states from the proposed observations, or the register repeatedly labels layers inspection-due without producing dependency information sufficient to choose among continued use, retirement in place, or a separately authorized retrieval trial.","risks":["Non-destructive observations may miss deeply buried or visually similar layers and create false confidence in inventory completeness.","An age-weighted score may encode subjective weights and falsely imply measurement precision.","Field probing may disturb habitat or expose material even when no retrieval is intended.","A retirement-in-place category may legitimize indefinite retention unless its exception and review date are enforced.","Mapping sensitive habitat or project features may create access and stewardship concerns.","Managers may treat an inspection TTL as a removal deadline despite the dependency gate.","A tombstone register can itself become stale if later repairs are not recorded.","Focusing on installed materials may divert attention from hydrologic or geomorphic causes of restoration failure."]},"next_evidence_step":"On one manager-selected restoration reach, reconcile existing drawings and work orders with a surface survey to produce a provisional layer inventory. Select a bounded set of mapped or suspected installations spanning known age, material, and overlay conditions; have two qualified reviewers independently assign lifecycle state, uncertainty, staleness signals, and dependency questions from the same non-destructive evidence. Compare agreement, inventory gaps, and whether each inspection-due case yields an actionable dependency checklist. The step ends with a review of the proposed classification rules and authorizes no material removal.","prior_art_status":"UNSEARCHED","diversity_from_prior_proposals":"The candidate is centered on the lifecycle of sequential, partly buried physical restoration materials and on the tension between habitat-facing deterioration and their continuing load-bearing role; it does not rely on informational records as the layers being retired.","revision_record":{"parent_version":null,"progress_targets_addressed":[],"conceptual_changes":[],"operational_changes":[],"evidence_changes":[],"claim_changes":[]}}