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      "code": "levelset.MaxConcurrentResource.v1",
      "family": "constraint",
      "tier": "estimator",
      "doc": {
        "nl": "At most N tasks may simultaneously demand the named resource on any working day.",
        "pseudocode": "forall day d: count(t demanding r and active(t,d)) <= max"
      },
      "defaultShadow": {
        "resourceUniqueId": 0,
        "max": 1
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      "assumptionTemplate": "at most {max} concurrent tasks on resource {resourceUniqueId}",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "type": "object",
        "properties": {
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      "code": "levelset.PeakCap.v1",
      "family": "constraint",
      "tier": "estimator",
      "doc": {
        "nl": "Summed fractional unit demand on the named resource may not exceed the cap on any working day (optionally within a day window).",
        "pseudocode": "forall day d [in window]: sum(units of active tasks demanding r) <= cap"
      },
      "defaultShadow": {
        "resourceUniqueId": 0,
        "cap": 1
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      "assumptionTemplate": "peak demand on resource {resourceUniqueId} capped at {cap} units",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
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        "properties": {
          "resourceUniqueId": {
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          "cap": {
            "type": "number",
            "exclusiveMinimum": 0
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                "type": "integer",
                "minimum": 0,
                "maximum": 9007199254740991
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                "type": "integer",
                "minimum": 0,
                "maximum": 9007199254740991
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              "toDay"
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        "required": [
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          "path": "resourceUniqueId",
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          "label": "resourceUniqueId",
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        {
          "path": "cap",
          "kind": "number",
          "label": "cap",
          "min": 0,
          "integer": false,
          "defaultValue": 1
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        {
          "path": "window.fromDay",
          "kind": "number",
          "label": "fromDay",
          "min": 0,
          "integer": true
        },
        {
          "path": "window.toDay",
          "kind": "number",
          "label": "toDay",
          "min": 0,
          "integer": true
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      "variadic": [],
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      "code": "levelset.ConcurrentUnitsLimit.v1",
      "family": "constraint",
      "tier": "estimator",
      "doc": {
        "nl": "At most N work units may have active work on any single day (optionally scoped to one discipline) — a WIP cap that prioritizes finishing open units before starting more.",
        "pseudocode": "forall day d: count(u in units where any task of u active on d) <= max"
      },
      "defaultShadow": {
        "unitIds": [],
        "max": 1
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      "assumptionTemplate": "at most {max} work units open at once",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "type": "object",
        "properties": {
          "unitIds": {
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              "type": "integer",
              "minimum": -9007199254740991,
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      "code": "levelset.Deadline.v1",
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      "tier": "estimator",
      "doc": {
        "nl": "The task must finish on or before the given day index; later placements are rejected.",
        "pseudocode": "finish(task) <= latestFinish"
      },
      "defaultShadow": {
        "taskUniqueId": 0,
        "latestFinish": 0
      },
      "assumptionTemplate": "task {taskUniqueId} finishes by day {latestFinish}",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "type": "object",
        "properties": {
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          "latestFinish": {
            "type": "integer",
            "minimum": 0,
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      "fields": [
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          "label": "taskUniqueId",
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          "defaultValue": 0
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          "path": "latestFinish",
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          "min": 0,
          "integer": true,
          "defaultValue": 0
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    {
      "code": "levelset.Release.v1",
      "family": "constraint",
      "tier": "estimator",
      "doc": {
        "nl": "The task may not start before the given day index.",
        "pseudocode": "start(task) >= earliestStart"
      },
      "defaultShadow": {
        "taskUniqueId": 0,
        "earliestStart": 0
      },
      "assumptionTemplate": "task {taskUniqueId} starts no earlier than day {earliestStart}",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
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      "code": "levelset.PhaseRelease.v1",
      "family": "constraint",
      "tier": "estimator",
      "doc": {
        "nl": "Every task in the phase may start no earlier than the shared day index.",
        "pseudocode": "for task in phase: start(task) >= earliestStart"
      },
      "defaultShadow": {
        "taskUniqueIds": [
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        "earliestStart": 0
      },
      "assumptionTemplate": "phase tasks start no earlier than day {earliestStart}",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "type": "object",
        "properties": {
          "taskUniqueIds": {
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            "minimum": 0,
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          "path": "earliestStart",
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          "label": "earliestStart",
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          "integer": true,
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      "code": "levelset.ModeSelection.v1",
      "family": "constraint",
      "tier": "engineer",
      "doc": {
        "nl": "The task runs in exactly one of the listed modes — alternative duration and resource-demand pairs. Order is preference: a later mode is chosen only when it starts the task strictly earlier.",
        "pseudocode": "(duration(task), demand(task)) = modes[chosen], chosen in modeIds"
      },
      "defaultShadow": {
        "taskUniqueId": 0,
        "modes": [
          {
            "modeId": 1,
            "durationDays": 1,
            "resourceDemand": []
          }
        ]
      },
      "assumptionTemplate": "task {taskUniqueId} chooses among its listed duration/crew modes",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
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        "properties": {
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            "type": "integer",
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                "modeId": {
                  "type": "integer",
                  "minimum": -9007199254740991,
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                "durationDays": {
                  "type": "integer",
                  "exclusiveMinimum": 0,
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                "resourceDemand": {
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                        "exclusiveMinimum": 0
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                }
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              "required": [
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                "resourceDemand"
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        "required": [
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          "label": "taskUniqueId",
          "integer": true,
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    {
      "code": "levelset.CrewBorrow.v1",
      "family": "constraint",
      "tier": "engineer",
      "doc": {
        "nl": "Listed tasks prefer their static home-crew assignment, but may substitute the borrow crew when that starts the task earlier.",
        "pseudocode": "modes(task) = [static demand, static demand with home resource replaced by borrow]"
      },
      "defaultShadow": {
        "taskUniqueIds": [
          0
        ],
        "homeResourceUniqueId": 0,
        "borrowResourceUniqueId": 1
      },
      "assumptionTemplate": "listed tasks may substitute resource {borrowResourceUniqueId} for home resource {homeResourceUniqueId}",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "type": "object",
        "properties": {
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          "homeResourceUniqueId": {
            "type": "integer",
            "minimum": -9007199254740991,
            "maximum": 9007199254740991
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          "borrowResourceUniqueId": {
            "type": "integer",
            "minimum": -9007199254740991,
            "maximum": 9007199254740991
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        },
        "required": [
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          "homeResourceUniqueId",
          "borrowResourceUniqueId"
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        "additionalProperties": false
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      "fields": [
        {
          "path": "homeResourceUniqueId",
          "kind": "number",
          "label": "homeResourceUniqueId",
          "integer": true,
          "defaultValue": 0
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        {
          "path": "borrowResourceUniqueId",
          "kind": "number",
          "label": "borrowResourceUniqueId",
          "integer": true,
          "defaultValue": 1
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      "variadic": [
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          "path": "taskUniqueIds",
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          "itemKind": "number",
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      "code": "levelset.ConcurrentResourceCost.v1",
      "family": "scorer",
      "tier": "estimator",
      "doc": {
        "nl": "Exponential per-day penalty on concurrent demand: each marginal worker beyond threshold costs growthBase× more than the previous one.",
        "pseudocode": "sum_d (load[d] > threshold ? basePrice * (growthBase^(load[d] - threshold) - 1) : 0)"
      },
      "defaultShadow": {
        "resourceUniqueId": 0,
        "basePrice": 100,
        "growthBase": 2,
        "threshold": 0
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          "basePrice": {
            "type": "number",
            "exclusiveMinimum": 0
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            "type": "number",
            "exclusiveMinimum": 1
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          "threshold": {
            "default": 0,
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            "minimum": 0,
            "maximum": 9007199254740991
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        "required": [
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          "growthBase"
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      "fields": [
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          "path": "resourceUniqueId",
          "kind": "number",
          "label": "resourceUniqueId",
          "integer": true,
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        {
          "path": "basePrice",
          "kind": "number",
          "label": "basePrice",
          "min": 0,
          "integer": false,
          "defaultValue": 100
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        {
          "path": "growthBase",
          "kind": "number",
          "label": "growthBase",
          "min": 1,
          "integer": false,
          "defaultValue": 2
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        {
          "path": "threshold",
          "kind": "number",
          "label": "threshold",
          "min": 0,
          "integer": true,
          "defaultValue": 0
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    {
      "code": "levelset.OpenUnitPenalty.v1",
      "family": "scorer",
      "tier": "estimator",
      "doc": {
        "nl": "Soft WIP penalty: prices each open-unit-day beyond a free allowance (softMax), where a unit is open across its whole span including idle gaps. Pressures the schedule to finish units before opening more.",
        "pseudocode": "sum_d weight * max(0, count(u open on d) - softMax)"
      },
      "defaultShadow": {
        "unitIds": [],
        "softMax": 0,
        "weight": 1
      },
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
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          "unitIds": {
            "type": "array",
            "items": {
              "type": "integer",
              "minimum": -9007199254740991,
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          },
          "discipline": {
            "type": "integer",
            "minimum": -9007199254740991,
            "maximum": 9007199254740991
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          "softMax": {
            "default": 0,
            "type": "integer",
            "minimum": 0,
            "maximum": 9007199254740991
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          "weight": {
            "default": 1,
            "type": "number",
            "exclusiveMinimum": 0
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        },
        "required": [
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      "fields": [
        {
          "path": "discipline",
          "kind": "number",
          "label": "discipline",
          "integer": true
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        {
          "path": "softMax",
          "kind": "number",
          "label": "softMax",
          "min": 0,
          "integer": true,
          "defaultValue": 0
        },
        {
          "path": "weight",
          "kind": "number",
          "label": "weight",
          "min": 0,
          "integer": false,
          "defaultValue": 1
        }
      ],
      "variadic": [
        {
          "path": "unitIds",
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    {
      "code": "levelset.HiringLagPenalty.v1",
      "family": "scorer",
      "tier": "estimator",
      "doc": {
        "nl": "Penalty for headcount increases on a resource: each week-over-week rise counts as new hires that cost (trainingWeeks × costPerCrewWeek) before becoming productive.",
        "pseudocode": "hires = profile[0] + sum_{w>0} max(0, profile[w] - profile[w-1]); penalty = hires * trainingWeeks * costPerCrewWeek"
      },
      "defaultShadow": {
        "resourceUniqueId": 0,
        "trainingWeeks": 2,
        "costPerCrewWeek": 1000
      },
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "type": "object",
        "properties": {
          "resourceUniqueId": {
            "type": "integer",
            "minimum": -9007199254740991,
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          "trainingWeeks": {
            "type": "number",
            "exclusiveMinimum": 0
          },
          "costPerCrewWeek": {
            "type": "number",
            "minimum": 0
          }
        },
        "required": [
          "resourceUniqueId",
          "trainingWeeks",
          "costPerCrewWeek"
        ]
      },
      "fields": [
        {
          "path": "resourceUniqueId",
          "kind": "number",
          "label": "resourceUniqueId",
          "integer": true,
          "defaultValue": 0
        },
        {
          "path": "trainingWeeks",
          "kind": "number",
          "label": "trainingWeeks",
          "min": 0,
          "integer": false,
          "defaultValue": 2
        },
        {
          "path": "costPerCrewWeek",
          "kind": "number",
          "label": "costPerCrewWeek",
          "min": 0,
          "integer": false,
          "defaultValue": 1000
        }
      ],
      "variadic": [],
      "complexParams": []
    },
    {
      "code": "levelset.PhaseLateness.v1",
      "family": "scorer",
      "tier": "estimator",
      "doc": {
        "nl": "Completion-priority penalty: for each phase, the working days its latest task finishes past the phase's target day, weighted by the phase's completion-priority weight and summed. A finish boundary at or before the target costs nothing — note the boundary is the exclusive finishDay index (finishDay d+1 for last work on day d), not the calendar date of that last work.",
        "pseudocode": "sum_p weight_p * workingDays(target_p, max(finish(t) for t in phase_p)) when that finish is late"
      },
      "defaultShadow": {
        "phases": []
      },
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "type": "object",
        "properties": {
          "phases": {
            "type": "array",
            "items": {
              "type": "object",
              "properties": {
                "name": {
                  "type": "string"
                },
                "taskUniqueIds": {
                  "type": "array",
                  "items": {
                    "type": "integer",
                    "minimum": -9007199254740991,
                    "maximum": 9007199254740991
                  }
                },
                "targetDay": {
                  "type": "integer",
                  "minimum": 0,
                  "maximum": 9007199254740991
                },
                "weight": {
                  "default": 1,
                  "type": "number",
                  "exclusiveMinimum": 0
                }
              },
              "required": [
                "taskUniqueIds",
                "targetDay"
              ]
            }
          }
        },
        "required": [
          "phases"
        ]
      },
      "fields": [],
      "variadic": [],
      "complexParams": [
        "phases"
      ]
    },
    {
      "code": "levelset.PhaseEarliness.v1",
      "family": "scorer",
      "tier": "estimator",
      "doc": {
        "nl": "Early-start penalty: for each phase, the working days its earliest task starts before the phase's target day, weighted by the phase's completion-priority weight and summed. Starting on or after target costs nothing.",
        "pseudocode": "sum_p weight_p * workingDays(min(start(t) for t in phase_p), target_p) when that start is early"
      },
      "defaultShadow": {
        "phases": []
      },
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "type": "object",
        "properties": {
          "phases": {
            "type": "array",
            "items": {
              "type": "object",
              "properties": {
                "name": {
                  "type": "string"
                },
                "taskUniqueIds": {
                  "type": "array",
                  "items": {
                    "type": "integer",
                    "minimum": -9007199254740991,
                    "maximum": 9007199254740991
                  }
                },
                "targetDay": {
                  "type": "integer",
                  "minimum": 0,
                  "maximum": 9007199254740991
                },
                "weight": {
                  "default": 1,
                  "type": "number",
                  "exclusiveMinimum": 0
                }
              },
              "required": [
                "taskUniqueIds",
                "targetDay"
              ]
            }
          }
        },
        "required": [
          "phases"
        ]
      },
      "fields": [],
      "variadic": [],
      "complexParams": [
        "phases"
      ]
    },
    {
      "code": "levelset.UnimodalDeviation.v1",
      "family": "scorer",
      "tier": "engineer",
      "doc": {
        "nl": "Magnitude of off-pattern dips before the dominant peak and bumps after it. Zero for a strictly unimodal profile within jitter tolerance.",
        "pseudocode": "sum(drop_i for i ≤ peak if drop_i > tol) + sum(rise_i for i > peak after descent if !allowSecondPeak || nth>1)"
      },
      "defaultShadow": {
        "resourceUniqueId": 0,
        "allowSecondPeak": false,
        "jitterTolerance": 1
      },
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "type": "object",
        "properties": {
          "resourceUniqueId": {
            "type": "integer",
            "minimum": -9007199254740991,
            "maximum": 9007199254740991
          },
          "allowSecondPeak": {
            "default": false,
            "type": "boolean"
          },
          "jitterTolerance": {
            "default": 1,
            "type": "integer",
            "minimum": 0,
            "maximum": 9007199254740991
          }
        },
        "required": [
          "resourceUniqueId"
        ]
      },
      "fields": [
        {
          "path": "resourceUniqueId",
          "kind": "number",
          "label": "resourceUniqueId",
          "integer": true,
          "defaultValue": 0
        },
        {
          "path": "allowSecondPeak",
          "kind": "checkbox",
          "label": "allowSecondPeak",
          "defaultValue": false
        },
        {
          "path": "jitterTolerance",
          "kind": "number",
          "label": "jitterTolerance",
          "min": 0,
          "integer": true,
          "defaultValue": 1
        }
      ],
      "variadic": [],
      "complexParams": []
    },
    {
      "code": "levelset.Makespan.v1",
      "family": "scorer",
      "tier": "sales",
      "doc": {
        "nl": "The latest finish day across all tasks — the schedule's total length.",
        "pseudocode": "max(finish(task) for task in tasks)"
      },
      "defaultShadow": {},
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "type": "object",
        "properties": {}
      },
      "fields": [],
      "variadic": [],
      "complexParams": []
    },
    {
      "code": "levelset.SerialSGS.v1",
      "family": "search",
      "tier": "engineer",
      "doc": {
        "nl": "Greedy serial schedule-generation scheme: topological order, earliest feasible placement per task. Deterministic, single schedule per run.",
        "pseudocode": "for task in topo order: place at earliest day satisfying precedence + caps"
      },
      "defaultShadow": {},
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "type": "object",
        "properties": {}
      },
      "fields": [],
      "variadic": [],
      "complexParams": []
    },
    {
      "code": "levelset.KBest.v1",
      "family": "collector",
      "tier": "engineer",
      "doc": {
        "nl": "Keeps the best k schedules, ranked lexicographically over the referenced scorers (order matters).",
        "pseudocode": "sort(candidates, lex(by)).slice(0, k)"
      },
      "defaultShadow": {
        "k": 3,
        "by": [
          "makespan"
        ]
      },
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "type": "object",
        "properties": {
          "k": {
            "type": "integer",
            "exclusiveMinimum": 0,
            "maximum": 9007199254740991
          },
          "by": {
            "minItems": 1,
            "type": "array",
            "items": {
              "type": "string"
            }
          }
        },
        "required": [
          "k",
          "by"
        ]
      },
      "fields": [
        {
          "path": "k",
          "kind": "number",
          "label": "k",
          "min": 1,
          "integer": true,
          "defaultValue": 3
        }
      ],
      "variadic": [
        {
          "path": "by",
          "label": "by",
          "itemKind": "text",
          "integer": false,
          "minItems": 1,
          "emptySeed": "",
          "defaultValues": [
            "makespan"
          ]
        }
      ],
      "complexParams": []
    },
    {
      "code": "levelset.Pareto.v1",
      "family": "collector",
      "tier": "engineer",
      "doc": {
        "nl": "Keeps the non-dominated set across the referenced scorers — the Pareto frontier.",
        "pseudocode": "candidates.filter(c => !candidates.some(o => dominates(o, c, over)))"
      },
      "defaultShadow": {
        "over": [
          "makespan",
          "cost"
        ]
      },
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "type": "object",
        "properties": {
          "over": {
            "minItems": 1,
            "type": "array",
            "items": {
              "type": "string"
            }
          }
        },
        "required": [
          "over"
        ]
      },
      "fields": [],
      "variadic": [
        {
          "path": "over",
          "label": "over",
          "itemKind": "text",
          "integer": false,
          "minItems": 1,
          "emptySeed": "",
          "defaultValues": [
            "makespan",
            "cost"
          ]
        }
      ],
      "complexParams": []
    },
    {
      "code": "levelset.Gate.v1",
      "family": "collector",
      "tier": "engineer",
      "doc": {
        "nl": "Keeps only schedules that satisfy every limit; when none pass, returns nothing or the single least-bad schedule.",
        "pseudocode": "pass = candidates.filter(within all limits); pass.length ? pass : (fallback == 'leastBad' ? [leastViolating(candidates)] : [])"
      },
      "defaultShadow": {
        "limits": [
          {
            "scorer": "makespan",
            "max": 0
          }
        ],
        "fallback": "none"
      },
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "type": "object",
        "properties": {
          "limits": {
            "minItems": 1,
            "type": "array",
            "items": {
              "type": "object",
              "properties": {
                "scorer": {
                  "type": "string"
                },
                "max": {
                  "type": "number"
                },
                "min": {
                  "type": "number"
                }
              },
              "required": [
                "scorer"
              ]
            }
          },
          "fallback": {
            "type": "string",
            "enum": [
              "leastBad",
              "none"
            ]
          }
        },
        "required": [
          "limits",
          "fallback"
        ]
      },
      "fields": [
        {
          "path": "fallback",
          "kind": "dropdown",
          "label": "fallback",
          "options": [
            "leastBad",
            "none"
          ],
          "defaultValue": "none"
        }
      ],
      "variadic": [],
      "complexParams": [
        "limits"
      ]
    }
  ]
}