simstudioai · icecrasher321 · Aug 18, 2026 · Aug 17, 2026 · Aug 17, 2026 · Aug 17, 2026
diff --git a/...kspaceId]/knowledge/[id]/components/connector-selector-field/connector-selector-field.tsx b/...kspaceId]/knowledge/[id]/components/connector-selector-field/connector-selector-field.tsx
@@ -5,11 +5,11 @@ import { ChipCombobox, type ComboboxOption } from '@sim/emcn'
 import { Loader } from '@sim/emcn/icons'
 import { SEARCH_DEBOUNCE_MS } from '@/lib/url-state'
 import { SELECTOR_CONTEXT_FIELDS } from '@/lib/workflows/subblocks/context'
+import { getDependsOnFields } from '@/lib/workflows/subblocks/dependencies'
 import type {
   ConfigFieldMap,
   ConfigFieldValue,
 } from '@/app/workspace/[workspaceId]/knowledge/[id]/hooks/use-connector-config-fields'
-import { getDependsOnFields } from '@/blocks/utils'
 import type { ConnectorConfigField } from '@/connectors/types'
 import { getSelectorDefinition } from '@/hooks/selectors/registry'
 import type { SelectorContext, SelectorKey } from '@/hooks/selectors/types'

diff --git a/apps/sim/app/workspace/[workspaceId]/knowledge/[id]/hooks/use-connector-config-fields.ts b/apps/sim/app/workspace/[workspaceId]/knowledge/[id]/hooks/use-connector-config-fields.ts
@@ -1,7 +1,7 @@
 'use client'
 
 import { useCallback, useMemo, useState } from 'react'
-import { getDependsOnFields } from '@/blocks/utils'
+import { getDependsOnFields } from '@/lib/workflows/subblocks/dependencies'
 import type { ConnectorConfigField, ConnectorMeta } from '@/connectors/types'
 
 export type ConfigFieldValue = string | string[]

diff --git a/.../components/panel/components/editor/components/sub-block/components/combobox/combobox.tsx b/.../components/panel/components/editor/components/sub-block/components/combobox/combobox.tsx
@@ -2,6 +2,7 @@ import { memo, useCallback, useEffect, useMemo, useRef, useState } from 'react'
 import { Combobox, type ComboboxOption, cn } from '@sim/emcn'
 import { Plus } from '@sim/emcn/icons'
 import { useReactFlow } from 'reactflow'
+import { getDependsOnFields } from '@/lib/workflows/subblocks/dependencies'
 import { SandboxCreateModal } from '@/app/workspace/[workspaceId]/settings/components/sandboxes/components/sandbox-create-modal'
 import type { SandboxLanguage } from '@/app/workspace/[workspaceId]/settings/components/sandboxes/utils'
 import { shouldClearMissingOption } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/combobox/missing-option'
@@ -13,7 +14,6 @@ import { useSubBlockValue } from '@/app/workspace/[workspaceId]/w/[workflowId]/c
 import { useActiveSearchTarget } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/providers/active-search-target-provider'
 import { useAccessibleReferencePrefixes } from '@/app/workspace/[workspaceId]/w/[workflowId]/hooks/use-accessible-reference-prefixes'
 import type { SubBlockConfig } from '@/blocks/types'
-import { getDependsOnFields } from '@/blocks/utils'
 import { usePermissionConfig } from '@/hooks/use-permission-config'
 import { useSubBlockStore } from '@/stores/workflows/subblock/store'
 

diff --git a/.../components/panel/components/editor/components/sub-block/components/dropdown/dropdown.tsx b/.../components/panel/components/editor/components/sub-block/components/dropdown/dropdown.tsx
@@ -6,14 +6,14 @@ import {
   NO_DENIED_OPERATIONS,
   OPERATION_SUBBLOCK_ID,
 } from '@/lib/permission-groups/operation-access'
+import { getDependsOnFields } from '@/lib/workflows/subblocks/dependencies'
 import { formatDisplayText } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/formatted-text'
 import { getWorkflowSearchLabelHighlight } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/workflow-search-highlight'
 import { useFetchedOptions } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/hooks/use-fetched-options'
 import { useSubBlockValue } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/hooks/use-sub-block-value'
 import { useActiveSearchTarget } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/providers/active-search-target-provider'
 import { getBlock } from '@/blocks/registry'
 import type { SubBlockConfig } from '@/blocks/types'
-import { getDependsOnFields } from '@/blocks/utils'
 import { ResponseBlockHandler } from '@/executor/handlers/response/response-handler'
 import { useOperationAccess } from '@/hooks/use-operation-access'
 import { useWorkflowStore } from '@/stores/workflows/workflow/store'

diff --git a/...ts/panel/components/editor/components/sub-block/components/tool-input/param-dependents.ts b/...ts/panel/components/editor/components/sub-block/components/tool-input/param-dependents.ts
@@ -1,10 +1,10 @@
-import { getWorkflowSearchDependentClears } from '@/lib/workflows/search-replace/dependencies'
+import { getTransitiveSubBlockDependents } from '@/lib/workflows/subblocks/dependencies'
 import { getBlock } from '@/blocks/registry'
 
 /**
  * Clear every TRANSITIVE `dependsOn` descendant of `changedParamId` in a nested tool's params,
  * mirroring the top-level block clear (`use-collaborative-workflow`). Reuses the shared
- * {@link getWorkflowSearchDependentClears} walk - transitive BFS plus canonical-pair expansion, so a
+ * {@link getTransitiveSubBlockDependents} walk - transitive BFS plus canonical-pair expansion, so a
  * basic OR advanced member change clears the dependent - so both surfaces clear identically. Only
  * descendants that currently hold a non-empty value are reset to `''`; the changed param itself and
  * non-descendants are untouched. Returns the same reference when nothing changed.
@@ -16,7 +16,7 @@ export function clearDependentToolParams(
 ): Record<string, string> {
   const subBlocks = getBlock(toolType)?.subBlocks ?? []
   let next: Record<string, string> | null = null
-  for (const { subBlockId } of getWorkflowSearchDependentClears(subBlocks, changedParamId)) {
+  for (const { subBlockId } of getTransitiveSubBlockDependents(subBlocks, [changedParamId])) {
     if (!params[subBlockId]) continue
     next ??= { ...params }
     next[subBlockId] = ''

diff --git a/...kspace/[workspaceId]/w/[workflowId]/components/search-replace/workflow-search-replace.tsx b/...kspace/[workspaceId]/w/[workflowId]/components/search-replace/workflow-search-replace.tsx
@@ -5,7 +5,6 @@ import { Button, cn, Input, toast } from '@sim/emcn'
 import { ChevronDown, ChevronRight, ChevronUp, X } from '@sim/emcn/icons'
 import { useParams } from 'next/navigation'
 import { useShallow } from 'zustand/react/shallow'
-import { getWorkflowSearchDependentClears } from '@/lib/workflows/search-replace/dependencies'
 import { indexWorkflowSearchMatches } from '@/lib/workflows/search-replace/indexer'
 import { buildWorkflowSearchReplacePlan } from '@/lib/workflows/search-replace/replacements'
 import {
@@ -20,6 +19,7 @@ import {
 import { getWorkflowSearchBlocks } from '@/lib/workflows/search-replace/state'
 import { WORKFLOW_SEARCH_SUBFLOW_FIELD_IDS } from '@/lib/workflows/search-replace/subflow-fields'
 import type { WorkflowSearchReplaceSubflowUpdate } from '@/lib/workflows/search-replace/types'
+import { getTransitiveSubBlockDependents } from '@/lib/workflows/subblocks/dependencies'
 import { useRegisterGlobalCommands } from '@/app/workspace/[workspaceId]/providers/global-commands-provider'
 import { useUserPermissionsContext } from '@/app/workspace/[workspaceId]/providers/workspace-permissions-provider'
 import { createCommand } from '@/app/workspace/[workspaceId]/utils/commands-utils'
@@ -474,10 +474,9 @@ export function WorkflowSearchReplace() {
         const blockConfig = block ? getBlock(block.type) : null
         if (!blockConfig?.subBlocks) continue
 
-        const dependentClears = getWorkflowSearchDependentClears(
-          blockConfig.subBlocks,
-          update.subBlockId
-        )
+        const dependentClears = getTransitiveSubBlockDependents(blockConfig.subBlocks, [
+          update.subBlockId,
+        ])
         for (const clear of dependentClears) {
           const alreadyUpdated = batchUpdates.some(
             (candidate) =>

diff --git a/...m/app/workspace/[workspaceId]/w/[workflowId]/components/workflow-block/workflow-block.tsx b/...m/app/workspace/[workspaceId]/w/[workflowId]/components/workflow-block/workflow-block.tsx
@@ -50,6 +50,7 @@ import {
 import { resolveSelectedTriggerId } from '@/lib/workflows/blocks/canvas-trigger-sentence'
 import { calculateWorkflowBlockDimensions } from '@/lib/workflows/blocks/deterministic-dimensions'
 import { getConditionRows, getRouterRows } from '@/lib/workflows/dynamic-handle-topology'
+import { getDependsOnFields } from '@/lib/workflows/subblocks/dependencies'
 import {
   getDisplayValue,
   hasDisplayableRowValue,
@@ -96,7 +97,6 @@ import {
   SELECTOR_TYPES_HYDRATION_REQUIRED,
   type SubBlockConfig,
 } from '@/blocks/types'
-import { getDependsOnFields } from '@/blocks/utils'
 import { useKnowledgeBase } from '@/hooks/kb/use-knowledge'
 import { useCustomTools } from '@/hooks/queries/custom-tools'
 import { useDeployWorkflow } from '@/hooks/queries/deployments'

diff --git a/apps/sim/blocks/utils.test.ts b/apps/sim/blocks/utils.test.ts
@@ -67,13 +67,10 @@ vi.mock('@/lib/oauth/utils', () => ({
   getScopesForService: vi.fn(() => []),
 }))
 
-import type { SubBlockConfig } from '@/blocks/types'
 import {
   BUILT_IN_TOOL_TYPES,
   getApiKeyCondition,
-  getDependsOnFields,
   getSerializedModelProviderId,
-  getSubBlocksDependingOnChange,
   parseOptionalBooleanInput,
   parseOptionalJsonInput,
   parseOptionalNumberInput,
@@ -377,96 +374,6 @@ describe('parseOptionalBooleanInput', () => {
   })
 })
 
-describe('getDependsOnFields', () => {
-  it('returns an empty array when dependsOn is unset', () => {
-    expect(getDependsOnFields(undefined)).toEqual([])
-  })
-
-  it('returns array dependencies unchanged', () => {
-    expect(getDependsOnFields(['credential', 'projectId'])).toEqual(['credential', 'projectId'])
-  })
-
-  it('flattens all and any dependencies', () => {
-    expect(getDependsOnFields({ all: ['credential'], any: ['teamId', 'manualTeamId'] })).toEqual([
-      'credential',
-      'teamId',
-      'manualTeamId',
-    ])
-  })
-})
-
-describe('getSubBlocksDependingOnChange', () => {
-  it('finds direct dependents of a changed subblock', () => {
-    const subBlocks: SubBlockConfig[] = [
-      { id: 'provider', title: 'Provider', type: 'dropdown' },
-      { id: 'model', title: 'Model', type: 'dropdown', dependsOn: ['provider'] },
-      { id: 'prompt', title: 'Prompt', type: 'long-input' },
-    ]
-
-    expect(
-      getSubBlocksDependingOnChange(subBlocks, 'provider').map((subBlock) => subBlock.id)
-    ).toEqual(['model'])
-  })
-
-  it('matches dependents through canonical basic and advanced siblings', () => {
-    const subBlocks: SubBlockConfig[] = [
-      {
-        id: 'channel',
-        title: 'Channel',
-        type: 'channel-selector',
-        canonicalParamId: 'channelId',
-        mode: 'basic',
-      },
-      {
-        id: 'manualChannel',
-        title: 'Channel ID',
-        type: 'short-input',
-        canonicalParamId: 'channelId',
-        mode: 'advanced',
-      },
-      {
-        id: 'messageId',
-        title: 'Message ID',
-        type: 'short-input',
-        dependsOn: ['channelId'],
-      },
-      {
-        id: 'threadTs',
-        title: 'Thread Timestamp',
-        type: 'short-input',
-        dependsOn: ['otherField'],
-      },
-    ]
-
-    expect(
-      getSubBlocksDependingOnChange(subBlocks, 'manualChannel').map((subBlock) => subBlock.id)
-    ).toEqual(['messageId'])
-    expect(
-      getSubBlocksDependingOnChange(subBlocks, 'channel').map((subBlock) => subBlock.id)
-    ).toEqual(['messageId'])
-  })
-
-  it('matches object-form dependencies when any listed dependency changes', () => {
-    const subBlocks: SubBlockConfig[] = [
-      { id: 'credential', title: 'Credential', type: 'oauth-input' },
-      { id: 'teamId', title: 'Team', type: 'short-input' },
-      {
-        id: 'projectId',
-        title: 'Project',
-        type: 'short-input',
-        dependsOn: { all: ['credential'], any: ['teamId'] },
-      },
-    ]
-
-    expect(
-      getSubBlocksDependingOnChange(subBlocks, 'credential').map((subBlock) => subBlock.id)
-    ).toEqual(['projectId'])
-    expect(
-      getSubBlocksDependingOnChange(subBlocks, 'teamId').map((subBlock) => subBlock.id)
-    ).toEqual(['projectId'])
-  })
-})
-
 describe('getSerializedModelProviderId', () => {
   const resolver = vi.mocked(getProviderFromModel)
 

diff --git a/apps/sim/blocks/utils.ts b/apps/sim/blocks/utils.ts
@@ -8,7 +8,6 @@ import {
 } from '@/lib/core/config/env-flags'
 import { getScopesForService } from '@/lib/oauth/utils'
 import { containsReference } from '@/lib/workflows/sanitization/references'
-import { buildCanonicalIndex } from '@/lib/workflows/subblocks/visibility'
 import type { SubBlockConfig } from '@/blocks/types'
 import {
   getBaseModelProviders,
@@ -112,39 +111,6 @@ export function getPiModelOptions() {
   })
 }
 
-/**
- * Gets all dependency fields as a flat array.
- * Handles both simple array format and object format with all/any fields.
- */
-export function getDependsOnFields(dependsOn: SubBlockConfig['dependsOn']): string[] {
-  if (!dependsOn) return []
-  if (Array.isArray(dependsOn)) return dependsOn
-  return [...(dependsOn.all || []), ...(dependsOn.any || [])]
-}
-
-/**
- * Finds subblocks that depend on a changed field, accounting for canonical pairs.
- */
-export function getSubBlocksDependingOnChange(
-  allSubBlocks: SubBlockConfig[],
-  changedSubBlockId: string
-): SubBlockConfig[] {
-  const canonicalIndex = buildCanonicalIndex(allSubBlocks)
-  const canonicalId = canonicalIndex.canonicalIdBySubBlockId[changedSubBlockId]
-  const group = canonicalId ? canonicalIndex.groupsById[canonicalId] : undefined
-  const changedFields = new Set<string>([changedSubBlockId])
-
-  if (canonicalId) changedFields.add(canonicalId)
-  if (group?.basicId) changedFields.add(group.basicId)
-  for (const advancedId of group?.advancedIds || []) {
-    changedFields.add(advancedId)
-  }
-
-  return allSubBlocks.filter((subBlock) =>
-    getDependsOnFields(subBlock.dependsOn).some((field) => changedFields.has(field))
-  )
-}
-
 function getProviderFromStore(model: string): string | null {
   const { providers } = useProvidersStore.getState()
   const normalized = model.toLowerCase()