Improve pipeline editor UX: stage detail sheet, structured predicates, page reorganization

- Add Sheet UI component and StageDetailSheet with config/activity tabs
- Stage config opens in right-side sheet (always-editable, no collapsed summary)
- Replace JSON textarea in routing rules with structured PredicateBuilder form
- Remove StageTransitionsEditor from UI (transitions auto-managed)
- Promote Stage Management section to immediately after flowchart
- Conditionally hide Routing Rules (single track) and Award Governance (no awards)
- Add section headers with descriptions and increase spacing

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/app/(admin)/admin/rounds/pipeline/[id]/page.tsx

@@ -1,6 +1,6 @@
 'use client'
 
-import { useState, useEffect, useRef, useMemo } from 'react'
+import { useState, useEffect, useMemo } from 'react'
 import { useParams } from 'next/navigation'
 import Link from 'next/link'
 import { trpc } from '@/lib/trpc/client'
@@ -34,27 +34,17 @@ import {
 
 import { InlineEditableText } from '@/components/ui/inline-editable-text'
 import { PipelineFlowchart } from '@/components/admin/pipeline/pipeline-flowchart'
-import { StageConfigEditor } from '@/components/admin/pipeline/stage-config-editor'
+import { StageDetailSheet } from '@/components/admin/pipeline/stage-detail-sheet'
 import { usePipelineInlineEdit } from '@/hooks/use-pipeline-inline-edit'
 import { MainTrackSection } from '@/components/admin/pipeline/sections/main-track-section'
 import { AwardsSection } from '@/components/admin/pipeline/sections/awards-section'
 import { NotificationsSection } from '@/components/admin/pipeline/sections/notifications-section'
-import { FileRequirementsEditor } from '@/components/admin/file-requirements-editor'
-import { FilteringRulesEditor } from '@/components/admin/pipeline/filtering-rules-editor'
 import { RoutingRulesEditor } from '@/components/admin/pipeline/routing-rules-editor'
-import { StageTransitionsEditor } from '@/components/admin/pipeline/stage-transitions-editor'
 import { AwardGovernanceEditor } from '@/components/admin/pipeline/award-governance-editor'
 import { normalizeStageConfig } from '@/lib/stage-config-schema'
 import { defaultNotificationConfig } from '@/lib/pipeline-defaults'
 import type { WizardTrackConfig } from '@/types/pipeline-wizard'
 
-import { IntakePanel } from '@/components/admin/pipeline/stage-panels/intake-panel'
-import { FilterPanel } from '@/components/admin/pipeline/stage-panels/filter-panel'
-import { EvaluationPanel } from '@/components/admin/pipeline/stage-panels/evaluation-panel'
-import { SelectionPanel } from '@/components/admin/pipeline/stage-panels/selection-panel'
-import { LiveFinalPanel } from '@/components/admin/pipeline/stage-panels/live-final-panel'
-import { ResultsPanel } from '@/components/admin/pipeline/stage-panels/results-panel'
-
 const statusColors: Record<string, string> = {
   DRAFT: 'bg-gray-100 text-gray-700',
   ACTIVE: 'bg-emerald-100 text-emerald-700',
@@ -62,39 +52,6 @@ const statusColors: Record<string, string> = {
   CLOSED: 'bg-blue-100 text-blue-700',
 }
 
-function StagePanel({
-  stageId,
-  stageType,
-  configJson,
-}: {
-  stageId: string
-  stageType: string
-  configJson: Record<string, unknown> | null
-}) {
-  switch (stageType) {
-    case 'INTAKE':
-      return <IntakePanel stageId={stageId} configJson={configJson} />
-    case 'FILTER':
-      return <FilterPanel stageId={stageId} configJson={configJson} />
-    case 'EVALUATION':
-      return <EvaluationPanel stageId={stageId} configJson={configJson} />
-    case 'SELECTION':
-      return <SelectionPanel stageId={stageId} configJson={configJson} />
-    case 'LIVE_FINAL':
-      return <LiveFinalPanel stageId={stageId} configJson={configJson} />
-    case 'RESULTS':
-      return <ResultsPanel stageId={stageId} configJson={configJson} />
-    default:
-      return (
-        <Card>
-          <CardContent className="py-8 text-center text-sm text-muted-foreground">
-            Unknown stage type: {stageType}
-          </CardContent>
-        </Card>
-      )
-  }
-}
-
 function toWizardTrackConfig(
   track: {
     id: string
@@ -167,6 +124,7 @@ export default function PipelineDetailPage() {
 
   const [selectedTrackId, setSelectedTrackId] = useState<string | null>(null)
   const [selectedStageId, setSelectedStageId] = useState<string | null>(null)
+  const [sheetOpen, setSheetOpen] = useState(false)
   const [structureTracks, setStructureTracks] = useState<WizardTrackConfig[]>([])
   const [notificationConfig, setNotificationConfig] = useState<Record<string, boolean>>({})
   const [overridePolicy, setOverridePolicy] = useState<Record<string, unknown>>({
@@ -175,8 +133,6 @@ export default function PipelineDetailPage() {
   const [structureDirty, setStructureDirty] = useState(false)
   const [settingsDirty, setSettingsDirty] = useState(false)
 
-  const stagePanelRef = useRef<HTMLDivElement>(null)
-
   const { data: pipeline, isLoading } = trpc.pipeline.getDraft.useQuery({
     id: pipelineId,
   })
@@ -220,15 +176,11 @@ export default function PipelineDetailPage() {
       onError: (err) => toast.error(err.message),
     })
 
-  // Auto-select first track and stage on load
+  // Auto-select first track on load
   useEffect(() => {
     if (pipeline && pipeline.tracks.length > 0 && !selectedTrackId) {
       const firstTrack = pipeline.tracks.sort((a, b) => a.sortOrder - b.sortOrder)[0]
       setSelectedTrackId(firstTrack.id)
-      if (firstTrack.stages.length > 0) {
-        const firstStage = firstTrack.stages.sort((a, b) => a.sortOrder - b.sortOrder)[0]
-        setSelectedStageId(firstStage.id)
-      }
     }
   }, [pipeline, selectedTrackId])
 
@@ -280,13 +232,6 @@ export default function PipelineDetailPage() {
     setSettingsDirty(false)
   }, [pipeline])
 
-  // Scroll to stage panel when a stage is selected
-  useEffect(() => {
-    if (selectedStageId && stagePanelRef.current) {
-      stagePanelRef.current.scrollIntoView({ behavior: 'smooth', block: 'start' })
-    }
-  }, [selectedStageId])
-
   const trackOptionsForEditors = useMemo(
     () =>
       (pipeline?.tracks ?? [])
@@ -348,20 +293,17 @@ export default function PipelineDetailPage() {
     (s) => s.id === selectedStageId
   )
   const mainTrackDraft = structureTracks.find((track) => track.kind === 'MAIN')
+  const hasAwardTracks = pipeline.tracks.some((t) => t.kind === 'AWARD')
+  const hasMultipleTracks = pipeline.tracks.length > 1
 
   const handleTrackChange = (trackId: string) => {
     setSelectedTrackId(trackId)
-    const track = pipeline.tracks.find((t) => t.id === trackId)
-    if (track && track.stages.length > 0) {
-      const firstStage = track.stages.sort((a, b) => a.sortOrder - b.sortOrder)[0]
-      setSelectedStageId(firstStage.id)
-    } else {
-      setSelectedStageId(null)
-    }
+    setSelectedStageId(null)
   }
 
   const handleStageSelect = (stageId: string) => {
     setSelectedStageId(stageId)
+    setSheetOpen(true)
   }
 
   const handleStatusChange = async (newStatus: 'DRAFT' | 'ACTIVE' | 'CLOSED' | 'ARCHIVED') => {
@@ -426,7 +368,7 @@ export default function PipelineDetailPage() {
   const flowchartTracks = selectedTrack ? [selectedTrack] : []
 
   return (
-    <div className="space-y-6">
+    <div className="space-y-8">
       {/* Header */}
       <div className="space-y-3">
         <div className="flex items-start justify-between gap-2">
@@ -593,7 +535,7 @@ export default function PipelineDetailPage() {
       </div>
 
       {/* Track Switcher (only if multiple tracks) */}
-      {pipeline.tracks.length > 1 && (
+      {hasMultipleTracks && (
         <div className="flex items-center gap-2 flex-wrap overflow-x-auto pb-1">
           {pipeline.tracks
             .sort((a, b) => a.sortOrder - b.sortOrder)
@@ -627,11 +569,16 @@ export default function PipelineDetailPage() {
 
       {/* Pipeline Flowchart */}
       {flowchartTracks.length > 0 ? (
-        <PipelineFlowchart
-          tracks={flowchartTracks}
-          selectedStageId={selectedStageId}
-          onStageSelect={handleStageSelect}
-        />
+        <div>
+          <PipelineFlowchart
+            tracks={flowchartTracks}
+            selectedStageId={selectedStageId}
+            onStageSelect={handleStageSelect}
+          />
+          <p className="text-xs text-muted-foreground mt-2">
+            Click a stage to edit its configuration
+          </p>
+        </div>
       ) : (
         <Card>
           <CardContent className="py-8 text-center text-sm text-muted-foreground">
@@ -640,186 +587,160 @@ export default function PipelineDetailPage() {
         </Card>
       )}
 
-      {/* Selected Stage Detail */}
-      <div ref={stagePanelRef}>
-        {selectedStage ? (
-          <div className="space-y-4">
-            <div className="border-t pt-4">
-              <h2 className="text-lg font-semibold text-muted-foreground">
-                Selected Stage: <span className="text-foreground">{selectedStage.name}</span>
-              </h2>
+      {/* Stage Detail Sheet */}
+      <StageDetailSheet
+        open={sheetOpen}
+        onOpenChange={setSheetOpen}
+        stage={
+          selectedStage
+            ? {
+                id: selectedStage.id,
+                name: selectedStage.name,
+                stageType: selectedStage.stageType,
+                configJson: selectedStage.configJson as Record<string, unknown> | null,
+              }
+            : null
+        }
+        onSaveConfig={updateStageConfig}
+        isSaving={isUpdating}
+        pipelineId={pipelineId}
+        materializeRequirements={(stageId) =>
+          materializeRequirementsMutation.mutate({ stageId })
+        }
+        isMaterializing={materializeRequirementsMutation.isPending}
+      />
+
+      {/* Stage Management */}
+      <div>
+        <h2 className="text-lg font-semibold border-b pb-2 mb-4">Stage Management</h2>
+        <p className="text-sm text-muted-foreground mb-4">
+          Add, remove, reorder, or change stage types. Click a stage in the flowchart to edit its settings.
+        </p>
+        <Card>
+          <CardContent className="pt-4 space-y-6">
+            <div className="flex items-center justify-between gap-2">
+              <h3 className="text-sm font-semibold">Pipeline Structure</h3>
+              <Button
+                type="button"
+                size="sm"
+                onClick={handleSaveStructure}
+                disabled={!structureDirty || updateStructureMutation.isPending}
+              >
+                {updateStructureMutation.isPending ? (
+                  <Loader2 className="mr-1.5 h-3.5 w-3.5 animate-spin" />
+                ) : (
+                  <Save className="mr-1.5 h-3.5 w-3.5" />
+                )}
+                Save Structure
+              </Button>
             </div>
 
-            {/* Stage Config Editor */}
-            <StageConfigEditor
-              stageId={selectedStage.id}
-              stageName={selectedStage.name}
-              stageType={selectedStage.stageType}
-              configJson={selectedStage.configJson as Record<string, unknown> | null}
-              onSave={updateStageConfig}
-              isSaving={isUpdating}
-            />
-
-            {selectedStage.stageType === 'INTAKE' && (
-              <div className="space-y-2">
-                <div className="flex items-center justify-between gap-2">
-                  <h3 className="text-sm font-medium">Intake File Requirements</h3>
-                  <Button
-                    type="button"
-                    size="sm"
-                    variant="outline"
-                    onClick={() =>
-                      materializeRequirementsMutation.mutate({
-                        stageId: selectedStage.id,
-                      })
-                    }
-                    disabled={materializeRequirementsMutation.isPending}
-                  >
-                    {materializeRequirementsMutation.isPending && (
-                      <Loader2 className="mr-1.5 h-3.5 w-3.5 animate-spin" />
-                    )}
-                    Import Legacy Requirements
-                  </Button>
-                </div>
-                <FileRequirementsEditor stageId={selectedStage.id} />
-              </div>
-            )}
-
-            {selectedStage.stageType === 'FILTER' && (
-              <FilteringRulesEditor stageId={selectedStage.id} />
-            )}
-
-            {/* Stage Activity Panel */}
-            <StagePanel
-              stageId={selectedStage.id}
-              stageType={selectedStage.stageType}
-              configJson={selectedStage.configJson as Record<string, unknown> | null}
-            />
-
-            {selectedTrack && (
-              <StageTransitionsEditor
-                trackId={selectedTrack.id}
-                stages={selectedTrack.stages.map((stage) => ({
-                  id: stage.id,
-                  name: stage.name,
-                  sortOrder: stage.sortOrder,
-                }))}
+            {mainTrackDraft ? (
+              <MainTrackSection
+                stages={mainTrackDraft.stages}
+                onChange={updateMainTrackStages}
               />
-            )}
-          </div>
-        ) : (
-          <Card>
-            <CardContent className="py-12 text-center">
+            ) : (
               <p className="text-sm text-muted-foreground">
-                Click a stage in the flowchart above to view its configuration and activity
+                No main track configured.
               </p>
-            </CardContent>
-          </Card>
-        )}
+            )}
+
+            <AwardsSection
+              tracks={structureTracks}
+              onChange={(tracks) => {
+                setStructureTracks(tracks)
+                setStructureDirty(true)
+              }}
+            />
+          </CardContent>
+        </Card>
       </div>
 
-      <RoutingRulesEditor
-        pipelineId={pipelineId}
-        tracks={trackOptionsForEditors}
-      />
+      {/* Routing Rules (only if multiple tracks) */}
+      {hasMultipleTracks && (
+        <div>
+          <h2 className="text-lg font-semibold border-b pb-2 mb-4">Routing Rules</h2>
+          <p className="text-sm text-muted-foreground mb-4">
+            Define conditions for routing projects between tracks.
+          </p>
+          <RoutingRulesEditor
+            pipelineId={pipelineId}
+            tracks={trackOptionsForEditors}
+          />
+        </div>
+      )}
 
-      <AwardGovernanceEditor
-        pipelineId={pipelineId}
-        tracks={pipeline.tracks
-          .filter((track) => track.kind === 'AWARD')
-          .map((track) => ({
-            id: track.id,
-            name: track.name,
-            decisionMode: track.decisionMode,
-            specialAward: track.specialAward
-              ? {
-                  id: track.specialAward.id,
-                  name: track.specialAward.name,
-                  description: track.specialAward.description,
-                  criteriaText: track.specialAward.criteriaText,
-                  useAiEligibility: track.specialAward.useAiEligibility,
-                  scoringMode: track.specialAward.scoringMode,
-                  maxRankedPicks: track.specialAward.maxRankedPicks,
-                  votingStartAt: track.specialAward.votingStartAt,
-                  votingEndAt: track.specialAward.votingEndAt,
-                  status: track.specialAward.status,
-                }
-              : null,
-          }))}
-      />
+      {/* Award Governance (only if award tracks exist) */}
+      {hasAwardTracks && (
+        <div>
+          <h2 className="text-lg font-semibold border-b pb-2 mb-4">Award Governance</h2>
+          <p className="text-sm text-muted-foreground mb-4">
+            Configure special awards, voting, and scoring for award tracks.
+          </p>
+          <AwardGovernanceEditor
+            pipelineId={pipelineId}
+            tracks={pipeline.tracks
+              .filter((track) => track.kind === 'AWARD')
+              .map((track) => ({
+                id: track.id,
+                name: track.name,
+                decisionMode: track.decisionMode,
+                specialAward: track.specialAward
+                  ? {
+                      id: track.specialAward.id,
+                      name: track.specialAward.name,
+                      description: track.specialAward.description,
+                      criteriaText: track.specialAward.criteriaText,
+                      useAiEligibility: track.specialAward.useAiEligibility,
+                      scoringMode: track.specialAward.scoringMode,
+                      maxRankedPicks: track.specialAward.maxRankedPicks,
+                      votingStartAt: track.specialAward.votingStartAt,
+                      votingEndAt: track.specialAward.votingEndAt,
+                      status: track.specialAward.status,
+                    }
+                  : null,
+              }))}
+          />
+        </div>
+      )}
 
-      <Card>
-        <CardContent className="pt-4 space-y-6">
-          <div className="flex items-center justify-between gap-2">
-            <h2 className="text-sm font-semibold">Pipeline Configuration</h2>
-            <Button
-              type="button"
-              size="sm"
-              onClick={handleSaveStructure}
-              disabled={!structureDirty || updateStructureMutation.isPending}
-            >
-              {updateStructureMutation.isPending ? (
-                <Loader2 className="mr-1.5 h-3.5 w-3.5 animate-spin" />
-              ) : (
-                <Save className="mr-1.5 h-3.5 w-3.5" />
-              )}
-              Save Structure
-            </Button>
-          </div>
-
-          {mainTrackDraft ? (
-            <MainTrackSection
-              stages={mainTrackDraft.stages}
-              onChange={updateMainTrackStages}
+      {/* Settings */}
+      <div>
+        <h2 className="text-lg font-semibold border-b pb-2 mb-4">Settings</h2>
+        <Card>
+          <CardContent className="pt-4 space-y-4">
+            <div className="flex items-center justify-between gap-2">
+              <h3 className="text-sm font-semibold">Notifications and Overrides</h3>
+              <Button
+                type="button"
+                size="sm"
+                onClick={handleSaveSettings}
+                disabled={!settingsDirty || isUpdating}
+              >
+                {isUpdating ? (
+                  <Loader2 className="mr-1.5 h-3.5 w-3.5 animate-spin" />
+                ) : (
+                  <Save className="mr-1.5 h-3.5 w-3.5" />
+                )}
+                Save Settings
+              </Button>
+            </div>
+            <NotificationsSection
+              config={notificationConfig}
+              onChange={(next) => {
+                setNotificationConfig(next)
+                setSettingsDirty(true)
+              }}
+              overridePolicy={overridePolicy}
+              onOverridePolicyChange={(next) => {
+                setOverridePolicy(next)
+                setSettingsDirty(true)
+              }}
             />
-          ) : (
-            <p className="text-sm text-muted-foreground">
-              No main track configured.
-            </p>
-          )}
-
-          <AwardsSection
-            tracks={structureTracks}
-            onChange={(tracks) => {
-              setStructureTracks(tracks)
-              setStructureDirty(true)
-            }}
-          />
-        </CardContent>
-      </Card>
-
-      <Card>
-        <CardContent className="pt-4 space-y-4">
-          <div className="flex items-center justify-between gap-2">
-            <h2 className="text-sm font-semibold">Notifications and Overrides</h2>
-            <Button
-              type="button"
-              size="sm"
-              onClick={handleSaveSettings}
-              disabled={!settingsDirty || isUpdating}
-            >
-              {isUpdating ? (
-                <Loader2 className="mr-1.5 h-3.5 w-3.5 animate-spin" />
-              ) : (
-                <Save className="mr-1.5 h-3.5 w-3.5" />
-              )}
-              Save Settings
-            </Button>
-          </div>
-          <NotificationsSection
-            config={notificationConfig}
-            onChange={(next) => {
-              setNotificationConfig(next)
-              setSettingsDirty(true)
-            }}
-            overridePolicy={overridePolicy}
-            onOverridePolicyChange={(next) => {
-              setOverridePolicy(next)
-              setSettingsDirty(true)
-            }}
-          />
-        </CardContent>
-      </Card>
+          </CardContent>
+        </Card>
+      </div>
     </div>
   )
 }

src/components/admin/pipeline/predicate-builder.tsx

@@ -0,0 +1,196 @@
+'use client'
+
+import { useState, useEffect } from 'react'
+import { Input } from '@/components/ui/input'
+import { Label } from '@/components/ui/label'
+import { Badge } from '@/components/ui/badge'
+import { Button } from '@/components/ui/button'
+import { Textarea } from '@/components/ui/textarea'
+import {
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from '@/components/ui/select'
+import { Code } from 'lucide-react'
+
+const FIELD_OPTIONS = [
+  { value: 'competitionCategory', label: 'Competition Category' },
+  { value: 'oceanIssue', label: 'Ocean Issue' },
+  { value: 'country', label: 'Country' },
+  { value: 'geographicZone', label: 'Geographic Zone' },
+  { value: 'wantsMentorship', label: 'Wants Mentorship' },
+  { value: 'tags', label: 'Tags' },
+] as const
+
+const OPERATOR_OPTIONS = [
+  { value: 'equals', label: 'equals' },
+  { value: 'not_equals', label: 'not equals' },
+  { value: 'contains', label: 'contains' },
+  { value: 'in', label: 'in' },
+] as const
+
+type SimplePredicate = {
+  field: string
+  operator: string
+  value: string
+}
+
+type PredicateBuilderProps = {
+  value: Record<string, unknown>
+  onChange: (predicate: Record<string, unknown>) => void
+}
+
+function isSimplePredicate(obj: Record<string, unknown>): obj is SimplePredicate {
+  return (
+    typeof obj.field === 'string' &&
+    typeof obj.operator === 'string' &&
+    (typeof obj.value === 'string' || typeof obj.value === 'boolean')
+  )
+}
+
+function isCompound(obj: Record<string, unknown>): boolean {
+  return 'or' in obj || 'and' in obj || 'not' in obj
+}
+
+export function PredicateBuilder({ value, onChange }: PredicateBuilderProps) {
+  const [jsonMode, setJsonMode] = useState(false)
+  const [jsonText, setJsonText] = useState('')
+
+  const compound = isCompound(value)
+  const simple = !compound && isSimplePredicate(value)
+
+  useEffect(() => {
+    if (compound) {
+      setJsonMode(true)
+      setJsonText(JSON.stringify(value, null, 2))
+    }
+  }, [compound, value])
+
+  if (jsonMode) {
+    return (
+      <div className="space-y-2">
+        <div className="flex items-center justify-between gap-2">
+          <div className="flex items-center gap-2">
+            <Label className="text-xs">Predicate (JSON)</Label>
+            {compound && (
+              <Badge variant="secondary" className="text-[10px]">
+                Complex condition
+              </Badge>
+            )}
+          </div>
+          {!compound && (
+            <Button
+              type="button"
+              variant="ghost"
+              size="sm"
+              className="h-6 text-xs"
+              onClick={() => {
+                try {
+                  const parsed = JSON.parse(jsonText) as Record<string, unknown>
+                  onChange(parsed)
+                  setJsonMode(false)
+                } catch {
+                  // stay in JSON mode
+                }
+              }}
+            >
+              Switch to form
+            </Button>
+          )}
+        </div>
+        <Textarea
+          className="font-mono text-xs min-h-24"
+          value={jsonText}
+          onChange={(e) => {
+            setJsonText(e.target.value)
+            try {
+              const parsed = JSON.parse(e.target.value) as Record<string, unknown>
+              onChange(parsed)
+            } catch {
+              // don't update on invalid JSON
+            }
+          }}
+        />
+      </div>
+    )
+  }
+
+  const predicate: SimplePredicate = simple
+    ? { field: value.field as string, operator: value.operator as string, value: String(value.value) }
+    : { field: 'competitionCategory', operator: 'equals', value: '' }
+
+  const updateField = (field: string, val: string) => {
+    const next = { ...predicate, [field]: val }
+    onChange(next as unknown as Record<string, unknown>)
+  }
+
+  return (
+    <div className="space-y-2">
+      <div className="flex items-center justify-between gap-2">
+        <Label className="text-xs">Condition</Label>
+        <Button
+          type="button"
+          variant="ghost"
+          size="sm"
+          className="h-6 text-xs gap-1"
+          onClick={() => {
+            setJsonText(JSON.stringify(value, null, 2))
+            setJsonMode(true)
+          }}
+        >
+          <Code className="h-3 w-3" />
+          Edit as JSON
+        </Button>
+      </div>
+      <div className="grid gap-2 sm:grid-cols-3">
+        <div className="space-y-1">
+          <Label className="text-[10px] text-muted-foreground">Field</Label>
+          <Select
+            value={predicate.field}
+            onValueChange={(v) => updateField('field', v)}
+          >
+            <SelectTrigger className="h-8 text-xs">
+              <SelectValue />
+            </SelectTrigger>
+            <SelectContent>
+              {FIELD_OPTIONS.map((opt) => (
+                <SelectItem key={opt.value} value={opt.value}>
+                  {opt.label}
+                </SelectItem>
+              ))}
+            </SelectContent>
+          </Select>
+        </div>
+        <div className="space-y-1">
+          <Label className="text-[10px] text-muted-foreground">Operator</Label>
+          <Select
+            value={predicate.operator}
+            onValueChange={(v) => updateField('operator', v)}
+          >
+            <SelectTrigger className="h-8 text-xs">
+              <SelectValue />
+            </SelectTrigger>
+            <SelectContent>
+              {OPERATOR_OPTIONS.map((opt) => (
+                <SelectItem key={opt.value} value={opt.value}>
+                  {opt.label}
+                </SelectItem>
+              ))}
+            </SelectContent>
+          </Select>
+        </div>
+        <div className="space-y-1">
+          <Label className="text-[10px] text-muted-foreground">Value</Label>
+          <Input
+            className="h-8 text-xs"
+            value={predicate.value}
+            onChange={(e) => updateField('value', e.target.value)}
+            placeholder="e.g. STARTUP"
+          />
+        </div>
+      </div>
+    </div>
+  )
+}

src/components/admin/pipeline/routing-rules-editor.tsx

@@ -7,7 +7,7 @@ import { Button } from '@/components/ui/button'
 import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card'
 import { Input } from '@/components/ui/input'
 import { Label } from '@/components/ui/label'
-import { Textarea } from '@/components/ui/textarea'
+import { PredicateBuilder } from '@/components/admin/pipeline/predicate-builder'
 import {
   Select,
   SelectContent,
@@ -52,7 +52,7 @@ type RuleDraft = {
   destinationStageId: string | null
   priority: number
   isActive: boolean
-  predicateText: string
+  predicateJson: Record<string, unknown>
 }
 
 const DEFAULT_PREDICATE = {
@@ -119,7 +119,7 @@ export function RoutingRulesEditor({
         destinationStageId: rule.destinationStageId ?? null,
         priority: rule.priority,
         isActive: rule.isActive,
-        predicateText: JSON.stringify(rule.predicateJson ?? {}, null, 2),
+        predicateJson: (rule.predicateJson as Record<string, unknown>) ?? {},
       }
     }
     setDrafts(nextDrafts)
@@ -148,14 +148,6 @@ export function RoutingRulesEditor({
     const draft = drafts[id]
     if (!draft) return
 
-    let predicateJson: Record<string, unknown>
-    try {
-      predicateJson = JSON.parse(draft.predicateText) as Record<string, unknown>
-    } catch {
-      toast.error('Predicate must be valid JSON')
-      return
-    }
-
     await upsertRule.mutateAsync({
       id: draft.id,
       pipelineId,
@@ -166,7 +158,7 @@ export function RoutingRulesEditor({
       destinationStageId: draft.destinationStageId,
       priority: draft.priority,
       isActive: draft.isActive,
-      predicateJson,
+      predicateJson: draft.predicateJson,
     })
   }
 
@@ -370,19 +362,15 @@ export function RoutingRulesEditor({
                 </div>
               </div>
 
-              <div className="space-y-1">
-                <Label className="text-xs">Predicate (JSON)</Label>
-                <Textarea
-                  className="font-mono text-xs min-h-24"
-                  value={draft.predicateText}
-                  onChange={(e) =>
-                    setDrafts((prev) => ({
-                      ...prev,
-                      [rule.id]: { ...draft, predicateText: e.target.value },
-                    }))
-                  }
-                />
-              </div>
+              <PredicateBuilder
+                value={draft.predicateJson}
+                onChange={(predicate) =>
+                  setDrafts((prev) => ({
+                    ...prev,
+                    [rule.id]: { ...draft, predicateJson: predicate },
+                  }))
+                }
+              />
 
               <div className="flex items-center justify-between gap-2">
                 <div className="flex items-center gap-1">

src/components/admin/pipeline/stage-config-editor.tsx

@@ -3,6 +3,8 @@
 import { useState, useCallback, useEffect } from 'react'
 import { EditableCard } from '@/components/ui/editable-card'
 import { Badge } from '@/components/ui/badge'
+import { Button } from '@/components/ui/button'
+import { Loader2 } from 'lucide-react'
 
 import {
   Inbox,
@@ -45,6 +47,7 @@ type StageConfigEditorProps = {
   configJson: Record<string, unknown> | null
   onSave: (stageId: string, configJson: Record<string, unknown>) => Promise<void>
   isSaving?: boolean
+  alwaysEditable?: boolean
 }
 
 const stageIcons: Record<string, React.ReactNode> = {
@@ -255,6 +258,7 @@ export function StageConfigEditor({
   configJson,
   onSave,
   isSaving = false,
+  alwaysEditable = false,
 }: StageConfigEditorProps) {
   const [localConfig, setLocalConfig] = useState<Record<string, unknown>>(
     () => configJson ?? {}
@@ -375,6 +379,29 @@ export function StageConfigEditor({
     }
   }
 
+  if (alwaysEditable) {
+    return (
+      <div className="space-y-4">
+        <div className="flex items-center gap-2">
+          {stageIcons[stageType] && (
+            <span className="text-muted-foreground">{stageIcons[stageType]}</span>
+          )}
+          <h3 className="text-sm font-semibold">{stageName} Configuration</h3>
+          <Badge variant="outline" className="text-[10px]">
+            {stageType.replace('_', ' ')}
+          </Badge>
+        </div>
+        {renderEditor()}
+        <div className="flex justify-end pt-2 border-t">
+          <Button size="sm" onClick={handleSave} disabled={isSaving}>
+            {isSaving && <Loader2 className="h-3.5 w-3.5 mr-1.5 animate-spin" />}
+            Save Changes
+          </Button>
+        </div>
+      </div>
+    )
+  }
+
   return (
     <EditableCard
       title={`${stageName} Configuration`}

src/components/admin/pipeline/stage-detail-sheet.tsx

@@ -0,0 +1,178 @@
+'use client'
+
+import { Badge } from '@/components/ui/badge'
+import { Button } from '@/components/ui/button'
+import {
+  Sheet,
+  SheetContent,
+  SheetHeader,
+  SheetTitle,
+  SheetDescription,
+} from '@/components/ui/sheet'
+import { Tabs, TabsContent, TabsList, TabsTrigger } from '@/components/ui/tabs'
+import { Loader2 } from 'lucide-react'
+
+import { StageConfigEditor } from '@/components/admin/pipeline/stage-config-editor'
+import { FileRequirementsEditor } from '@/components/admin/file-requirements-editor'
+import { FilteringRulesEditor } from '@/components/admin/pipeline/filtering-rules-editor'
+
+import { IntakePanel } from '@/components/admin/pipeline/stage-panels/intake-panel'
+import { FilterPanel } from '@/components/admin/pipeline/stage-panels/filter-panel'
+import { EvaluationPanel } from '@/components/admin/pipeline/stage-panels/evaluation-panel'
+import { SelectionPanel } from '@/components/admin/pipeline/stage-panels/selection-panel'
+import { LiveFinalPanel } from '@/components/admin/pipeline/stage-panels/live-final-panel'
+import { ResultsPanel } from '@/components/admin/pipeline/stage-panels/results-panel'
+
+type StageType = 'INTAKE' | 'FILTER' | 'EVALUATION' | 'SELECTION' | 'LIVE_FINAL' | 'RESULTS'
+
+type StageDetailSheetProps = {
+  open: boolean
+  onOpenChange: (open: boolean) => void
+  stage: {
+    id: string
+    name: string
+    stageType: StageType
+    configJson: Record<string, unknown> | null
+  } | null
+  onSaveConfig: (stageId: string, configJson: Record<string, unknown>) => Promise<void>
+  isSaving: boolean
+  pipelineId: string
+  materializeRequirements?: (stageId: string) => void
+  isMaterializing?: boolean
+}
+
+function StagePanelContent({
+  stageId,
+  stageType,
+  configJson,
+}: {
+  stageId: string
+  stageType: string
+  configJson: Record<string, unknown> | null
+}) {
+  switch (stageType) {
+    case 'INTAKE':
+      return <IntakePanel stageId={stageId} configJson={configJson} />
+    case 'FILTER':
+      return <FilterPanel stageId={stageId} configJson={configJson} />
+    case 'EVALUATION':
+      return <EvaluationPanel stageId={stageId} configJson={configJson} />
+    case 'SELECTION':
+      return <SelectionPanel stageId={stageId} configJson={configJson} />
+    case 'LIVE_FINAL':
+      return <LiveFinalPanel stageId={stageId} configJson={configJson} />
+    case 'RESULTS':
+      return <ResultsPanel stageId={stageId} configJson={configJson} />
+    default:
+      return (
+        <p className="text-sm text-muted-foreground py-4">
+          Unknown stage type: {stageType}
+        </p>
+      )
+  }
+}
+
+const stageTypeLabels: Record<string, string> = {
+  INTAKE: 'Intake',
+  FILTER: 'Filter',
+  EVALUATION: 'Evaluation',
+  SELECTION: 'Selection',
+  LIVE_FINAL: 'Live Final',
+  RESULTS: 'Results',
+}
+
+export function StageDetailSheet({
+  open,
+  onOpenChange,
+  stage,
+  onSaveConfig,
+  isSaving,
+  pipelineId: _pipelineId,
+  materializeRequirements,
+  isMaterializing = false,
+}: StageDetailSheetProps) {
+  if (!stage) return null
+
+  return (
+    <Sheet open={open} onOpenChange={onOpenChange}>
+      <SheetContent
+        side="right"
+        className="w-full sm:w-[540px] lg:w-[640px] sm:max-w-[640px] overflow-y-auto p-0"
+      >
+        <div className="p-6 pb-0">
+          <SheetHeader>
+            <div className="flex items-center gap-2">
+              <SheetTitle className="text-base">{stage.name}</SheetTitle>
+              <Badge variant="outline" className="text-[10px]">
+                {stageTypeLabels[stage.stageType] ?? stage.stageType}
+              </Badge>
+            </div>
+            <SheetDescription>
+              Configure settings and view activity for this stage
+            </SheetDescription>
+          </SheetHeader>
+        </div>
+
+        <div className="px-6 pt-4 pb-6">
+          <Tabs defaultValue="configuration">
+            <TabsList className="w-full">
+              <TabsTrigger value="configuration" className="flex-1">
+                Configuration
+              </TabsTrigger>
+              <TabsTrigger value="activity" className="flex-1">
+                Activity
+              </TabsTrigger>
+            </TabsList>
+
+            <TabsContent value="configuration" className="space-y-4 mt-4">
+              <StageConfigEditor
+                stageId={stage.id}
+                stageName={stage.name}
+                stageType={stage.stageType}
+                configJson={stage.configJson}
+                onSave={onSaveConfig}
+                isSaving={isSaving}
+                alwaysEditable
+              />
+
+              {stage.stageType === 'INTAKE' && (
+                <div className="space-y-2">
+                  <div className="flex items-center justify-between gap-2">
+                    <h3 className="text-sm font-medium">Intake File Requirements</h3>
+                    {materializeRequirements && (
+                      <Button
+                        type="button"
+                        size="sm"
+                        variant="outline"
+                        onClick={() => materializeRequirements(stage.id)}
+                        disabled={isMaterializing}
+                      >
+                        {isMaterializing && (
+                          <Loader2 className="mr-1.5 h-3.5 w-3.5 animate-spin" />
+                        )}
+                        Import Legacy Requirements
+                      </Button>
+                    )}
+                  </div>
+                  <FileRequirementsEditor stageId={stage.id} />
+                </div>
+              )}
+
+              {stage.stageType === 'FILTER' && (
+                <FilteringRulesEditor stageId={stage.id} />
+              )}
+            </TabsContent>
+
+            <TabsContent value="activity" className="mt-4">
+              <StagePanelContent
+                stageId={stage.id}
+                stageType={stage.stageType}
+                configJson={stage.configJson}
+              />
+            </TabsContent>
+          </Tabs>
+        </div>
+      </SheetContent>
+    </Sheet>
+  )
+}

src/components/ui/sheet.tsx

@@ -0,0 +1,135 @@
+'use client'
+
+import * as React from 'react'
+import * as SheetPrimitive from '@radix-ui/react-dialog'
+import { cva, type VariantProps } from 'class-variance-authority'
+import { X } from 'lucide-react'
+import { cn } from '@/lib/utils'
+
+const Sheet = SheetPrimitive.Root
+const SheetTrigger = SheetPrimitive.Trigger
+const SheetClose = SheetPrimitive.Close
+const SheetPortal = SheetPrimitive.Portal
+
+const SheetOverlay = React.forwardRef<
+  React.ElementRef<typeof SheetPrimitive.Overlay>,
+  React.ComponentPropsWithoutRef<typeof SheetPrimitive.Overlay>
+>(({ className, ...props }, ref) => (
+  <SheetPrimitive.Overlay
+    className={cn(
+      'fixed inset-0 z-50 bg-black/80 data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0',
+      className
+    )}
+    {...props}
+    ref={ref}
+  />
+))
+SheetOverlay.displayName = SheetPrimitive.Overlay.displayName
+
+const sheetVariants = cva(
+  'fixed z-50 gap-4 bg-background p-6 shadow-lg transition ease-in-out data-[state=closed]:duration-300 data-[state=open]:duration-500 data-[state=open]:animate-in data-[state=closed]:animate-out',
+  {
+    variants: {
+      side: {
+        top: 'inset-x-0 top-0 border-b data-[state=closed]:slide-out-to-top data-[state=open]:slide-in-from-top',
+        bottom:
+          'inset-x-0 bottom-0 border-t data-[state=closed]:slide-out-to-bottom data-[state=open]:slide-in-from-bottom',
+        left: 'inset-y-0 left-0 h-full w-3/4 border-r data-[state=closed]:slide-out-to-left data-[state=open]:slide-in-from-left sm:max-w-sm',
+        right:
+          'inset-y-0 right-0 h-full w-3/4 border-l data-[state=closed]:slide-out-to-right data-[state=open]:slide-in-from-right sm:max-w-sm',
+      },
+    },
+    defaultVariants: {
+      side: 'right',
+    },
+  }
+)
+
+type SheetContentProps = React.ComponentPropsWithoutRef<typeof SheetPrimitive.Content> &
+  VariantProps<typeof sheetVariants>
+
+const SheetContent = React.forwardRef<
+  React.ElementRef<typeof SheetPrimitive.Content>,
+  SheetContentProps
+>(({ side = 'right', className, children, ...props }, ref) => (
+  <SheetPortal>
+    <SheetOverlay />
+    <SheetPrimitive.Content
+      ref={ref}
+      className={cn(sheetVariants({ side }), className)}
+      {...props}
+    >
+      <SheetPrimitive.Close className="absolute right-4 top-4 rounded-xs opacity-70 ring-offset-background transition-opacity hover:opacity-100 focus:outline-none focus:ring-2 focus:ring-ring focus:ring-offset-2 disabled:pointer-events-none data-[state=open]:bg-secondary">
+        <X className="h-4 w-4" />
+        <span className="sr-only">Close</span>
+      </SheetPrimitive.Close>
+      {children}
+    </SheetPrimitive.Content>
+  </SheetPortal>
+))
+SheetContent.displayName = SheetPrimitive.Content.displayName
+
+const SheetHeader = ({
+  className,
+  ...props
+}: React.HTMLAttributes<HTMLDivElement>) => (
+  <div
+    className={cn(
+      'flex flex-col space-y-2 text-center sm:text-left',
+      className
+    )}
+    {...props}
+  />
+)
+SheetHeader.displayName = 'SheetHeader'
+
+const SheetFooter = ({
+  className,
+  ...props
+}: React.HTMLAttributes<HTMLDivElement>) => (
+  <div
+    className={cn(
+      'flex flex-col-reverse sm:flex-row sm:justify-end sm:space-x-2',
+      className
+    )}
+    {...props}
+  />
+)
+SheetFooter.displayName = 'SheetFooter'
+
+const SheetTitle = React.forwardRef<
+  React.ElementRef<typeof SheetPrimitive.Title>,
+  React.ComponentPropsWithoutRef<typeof SheetPrimitive.Title>
+>(({ className, ...props }, ref) => (
+  <SheetPrimitive.Title
+    ref={ref}
+    className={cn('text-lg font-semibold text-foreground', className)}
+    {...props}
+  />
+))
+SheetTitle.displayName = SheetPrimitive.Title.displayName
+
+const SheetDescription = React.forwardRef<
+  React.ElementRef<typeof SheetPrimitive.Description>,
+  React.ComponentPropsWithoutRef<typeof SheetPrimitive.Description>
+>(({ className, ...props }, ref) => (
+  <SheetPrimitive.Description
+    ref={ref}
+    className={cn('text-sm text-muted-foreground', className)}
+    {...props}
+  />
+))
+SheetDescription.displayName = SheetPrimitive.Description.displayName
+
+export {
+  Sheet,
+  SheetPortal,
+  SheetOverlay,
+  SheetTrigger,
+  SheetClose,
+  SheetContent,
+  SheetHeader,
+  SheetFooter,
+  SheetTitle,
+  SheetDescription,
+}