{"actors":["Product owner for the solar-powered agricultural cold-room controller","Refrigeration systems engineer","Electrical and embedded-controls engineers","Compliance and functional-safety reviewer","Manufacturing and field-service technicians","Cold-room operators whose installations require continuity"],"affected_objective":"Deliver a certifiable, manufacturable, field-serviceable successor controller that preserves reliable single-zone cooling while correcting selected brownout and defrost-diagnostic failures.","arm":"COMMON_P1","authority_safety":{"authorized_first_step":"Conduct a read-only half-day scope audit using existing v1 drawings, service records, and the current v2 requirements list; classify up to 30 requirements and draft a constraint-function map without changing hardware, firmware, procurement, or certification artifacts.","decision_authority":"The designated product owner may park discretionary scope; the refrigeration lead and compliance reviewer jointly control admission of safety, refrigerant, electrical-protection, and continuity requirements through existing engineering-change procedures.","excluded_actions":["Bypassing protective interlocks or required safety analysis","Changing certified hardware, firmware, supplier orders, or field units during the audit","Reclassifying mandatory compliance work as optional to meet the budget","Forcing migration before the successor passes acceptance and service-readiness reviews"],"halt_rollback":"Halt scope admission if the core cooling contract, required protection functions, test coverage, commissioning procedure, or parallel-run path becomes indeterminate. Revert the candidate scope to the last approved charter and continue supporting v1 units while unresolved additions remain parked."},"baseline":"Continue the current v2 process in which parity, defect repair, technical-debt retirement, multi-zone support, alternative refrigerants, cloud telemetry, predictive control, grid-service modes, and modular expansion compete in one requirements backlog and are reviewed mainly for individual merit.","candidate_id":"second_system_complexity_restraint__engineering_design__COMMON_P1","causal_chain":["The v1 controller succeeds partly because it supports one refrigeration topology, one zone, fixed protection logic, few configuration states, and manual field commissioning.","Those constraints also leave real shortcomings and a visible stockpile of postponed requests.","Authorization of v2 provides more budget and design freedom, causing old exclusions to lose their focusing force.","Parity, selected defect correction, architecture generalization, telemetry, new operating modes, and cleanup enter one successor backlog.","Each locally defensible addition introduces coupled hardware variants, firmware states, validation cases, manufacturing instructions, and service knowledge.","Cumulative configuration and verification burden makes the replacement harder to certify, commission, support, and safely migrate into than the proven predecessor.","A predecessor-constraint inventory and successor core contract recover the useful functions of the old boundaries.","A scope firewall, admission rubric, and explicit complexity budget keep the launch tier limited to parity, mandatory obligations, brownout resilience, and defrost-fault observability.","A staged ladder gives other ambitions named review triggers, while parallel operation of v1 preserves an escape path.","Launchability reviews can then expose whether the bounded successor remains buildable, testable, manufacturable, migratable, and serviceable before further scope is admitted."],"cell_id":"second_system_complexity_restraint__engineering_design","consequence":"The successor can become a highly configurable controller with a combinatorial verification and commissioning burden, delaying replacement of aging v1 units and increasing the possibility of installation errors, unfamiliar failure modes, and unsupported field configurations.","diversity_from_prior_proposals":"Not assessed against other proposals because runtime isolation prohibits inspecting them; this candidate is specifically instantiated as governance of a physical refrigeration-controller successor, including certification, manufacturing, commissioning, and field rollback constraints.","experiment_id":"eoa_inverse_innovation_exp13_second_slot_policy60_20260806","intervention":"Create a v2 successor charter that preserves v1 single-zone cooling, electrical and refrigeration protections, existing actuator compatibility, and manual commissioning; admits only brownout ride-through and defrost-fault logging as current-cycle improvements; separates parity, safety, defect repair, debt, validated improvement, and speculative options; records the useful function of each lifted v1 constraint; caps configuration variants, interfaces, operating modes, verification cases, and new service procedures; parks multi-zone control, alternative-refrigerant generality, cloud optimization, grid services, and modular expansion behind evidence and capacity triggers; and requires recurring launchability reviews plus a parallel-run migration seam.","mechanism_mapping":[{"counterfactual_removal":"Without it, the team can describe every v1 limitation as obsolete and lose the boundaries that reduced configuration and verification burden.","mechanism_slug":"constraint_release_inventory","role":"Records each predecessor constraint, the problem it caused, the focusing or safety function it performed, and any deliberate replacement control."},{"counterfactual_removal":"Without it, parity, mandatory protection work, cleanup, and speculative capability can continue entering through the same requirements channel.","mechanism_slug":"rewrite_scope_firewall","role":"Separates work classes and assigns different admission rules to continuity obligations, selected repairs, debt retirement, validated improvements, and future options."},{"counterfactual_removal":"Without it, individually attractive additions can accumulate without accounting for coupling, validation, manufacturing, or service consequences.","mechanism_slug":"feature_admission_rubric","role":"Requires each proposed addition to state present value, evidence, coupling, maintenance load, verification demand, migration effect, and release-tier fit."},{"counterfactual_removal":"Without it, no cumulative limit prevents small additions from producing an untestable configuration space.","mechanism_slug":"complexity_budget_review","role":"Tracks bounded counts of hardware variants, interfaces, control modes, configurable parameters, verification cases, and new field procedures."},{"counterfactual_removal":"Without it, stakeholders may smuggle deferred ambitions back into launch scope because parking appears equivalent to rejection.","mechanism_slug":"staged_release_ladder","role":"Places ambitions in launch, stabilization, expansion, or later-review tiers with owners and observable reopening triggers."},{"counterfactual_removal":"Without it, architectural readiness could be mistaken for product readiness even when manufacturing, migration, or support remains unresolved.","mechanism_slug":"parity_then_expansion_gate","role":"Blocks expansion until the bounded successor demonstrates its core cooling contract and passes certification, commissioning, manufacturing, and service-readiness reviews."}],"nearest_rivals":["Generic design-to-cost or complexity budgeting, which caps burden but need not recover how predecessor constraints enabled the first launch","Conventional requirements traceability and V-model verification, which can verify an overambitious successor without deciding which ambitions belong in its first release","Stage-gate product development, which reviews maturity but may leave parity, cleanup, and speculative expansion in one approved scope","Modular product architecture, which can contain coupling but can itself become speculative generality before current use cases justify it","FMEA and hazard analysis, which protect safety but do not govern the non-safety ambition released by predecessor success"],"negative_tests":{"intervention_falsifier":"In a shadow application to the current backlog, the intervention is undermined if the charter, class separation, and budgets cannot produce stable and auditable admit-or-park decisions, or if removing parked ambitions leaves the same configuration, verification, commissioning, and support burden.","problem_falsifier":"Reject this diagnosis if v1 did not create a postponed-ambition stockpile, if v2 is merely an incremental release, or if documented current operating and regulatory conditions independently require the proposed multi-zone, refrigerant, connectivity, and control complexity for the launch cohort.","risks":["Necessary safety or compliance work could be mislabeled as discretionary scope.","Budget metrics could encourage superficial counting while hiding high-coupling interactions.","Parking could become permanent neglect, provoking stakeholders to relabel ambitions as parity.","Overly strict retention of v1 boundaries could preserve obsolete constraints or defer a genuinely required architecture change.","Continued v1 support during staged migration could consume scarce engineering and field-service capacity."],"strongest_counterevidence":"A configuration-to-obligation matrix showing that nearly all proposed v2 generality is required by already selected launch installations, applicable standards, or verified field hazards—and that a narrower successor would require more interfaces, exceptions, or lifecycle burden than the broader design—would weigh strongly against the candidate."},"next_evidence_step":"Run the authorized half-day audit on at most 30 current v2 requirements. Produce four read-only artifacts: a v1 constraint/function inventory, work-class labels, a draft core contract, and a configuration-to-test-burden matrix. The immediate decision is only whether the observed backlog contains enough deferrable successor ambition and preserved constraint function to justify a time-boxed shadow triage; no product change or efficacy conclusion follows from this step.","observable_state":"At each review, inspect the versioned successor charter; every requirement's work class and release tier; named v1 constraints and their retained or replacement functions; counts of hardware variants, external interfaces, operating modes, configuration parameters, verification cases, and new service procedures against approved caps; unresolved safety and compliance obligations; evidence and owner for each admitted improvement; parked-item review triggers; readiness status for build, certification, manufacturing, commissioning, support, and migration; and continued availability of the v1 parallel-run path.","prior_art_status":"UNSEARCHED","problem":"A successful fixed-topology controller for small solar-powered agricultural cold rooms is being replaced. Its narrow single-zone design, limited configuration, manual commissioning, and fixed refrigerant assumptions created service frustrations but also kept the hardware, control states, verification matrix, and technician training bounded. With v2 funding, accumulated requests for multi-zone control, alternative refrigerants, cloud telemetry, predictive energy dispatch, grid services, modular expansion, component substitutions, debt retirement, and core parity are being combined into one redesign, even though installed users still depend on the predecessor.","proposal_index":1,"remaining_contrastive_claim":"The candidate's distinctive testable claim is not that budgets or reviews are useful in general, but that at a successor transition they should be anchored to recovered predecessor constraint functions, separated work classes, a minimal continuity-preserving core contract, and a legitimate later path for postponed ambition.","revision_record":{"claim_changes":["Initial candidate; no prior-version claims exist."],"conceptual_changes":["Initial engineering-domain instantiation of the supplied successor-restraint archetype."],"evidence_changes":["No external evidence was searched or added."],"operational_changes":["Defined a read-only half-day audit, bounded to 30 requirements, as the first evidence step."],"parent_version":null,"progress_targets_addressed":["Concrete physical-system problem and actors","Observable cumulative-complexity state","Causal preservation of the constrained-predecessor and released-ambition structure","Explicit authority, exclusions, halt condition, and rollback path","Problem and intervention falsifiers","Bounded first evidence step"]},"schema_version":1,"structural_mapping":[{"archetype_element":"Successful but constrained predecessor","domain_realization":"The deployed v1 cold-room controller reliably operates one fixed refrigeration topology and zone using few control modes and manual commissioning."},{"archetype_element":"Predecessor constraint memory","domain_realization":"The design record distinguishes limitations that merely caused pain from boundaries that limited hardware variants, control states, test cases, and technician knowledge."},{"archetype_element":"Deferred ambition stockpile","domain_realization":"Requests for multi-zone operation, alternative refrigerants, telemetry, predictive dispatch, grid services, modular expansion, and cleanup accumulated while v1 remained narrow."},{"archetype_element":"Successor core contract","domain_realization":"V2 must first preserve cooling, protective functions, actuator compatibility, and commissioning continuity while addressing only brownout resilience and defrost-fault observability."},{"archetype_element":"Constraint-function replacement","domain_realization":"Where fixed v1 assumptions are lifted, explicit configuration caps, interface rules, verification requirements, and service-capacity checks replace their focusing function."},{"archetype_element":"Ambition triage and complexity budget","domain_realization":"Additions are admitted by current evidence and charged against hardware, firmware-state, validation, manufacturing, user-learning, and field-support budgets."},{"archetype_element":"Staged release ladder","domain_realization":"Launch and stabilization precede evidence-triggered reconsideration of multi-zone, refrigerant, connectivity, optimization, and grid-service capabilities."},{"archetype_element":"Launchability invariant","domain_realization":"The release remains buildable, certifiable, manufacturable, commissionable, supportable, and migratable with the available team and field network."},{"archetype_element":"Rollback or escape path","domain_realization":"V1 remains supported during limited-cohort v2 deployment, and installations retain a documented route back to the approved predecessor controller."}],"title":"Launch-Tier Scope Firewall for a Solar Cold-Room Controller Successor","version":0}